how did the structure of dna reveal how it stored information?

Answers

Answer 1

The structure of DNA revealed how it stored information through its double helix shape and the sequence of nucleotides that made up the strands. The DNA molecule consists of four types of nucleotides: adenine (A), thymine (T), cytosine (C), and guanine (G).

Two complementary strands of nucleotides make up the double helix structure of DNA, which is joined by hydrogen bonds between the bases of the nucleotides. Cytosine pairs with guanine, while adenine pairs with thymine. The DNA can properly and effectively reproduce itself thanks to base pairing, guaranteeing that the genetic information is passed on to the next generations.

DNA's nucleotide sequence contains the instructions needed to create and maintain an organism. Genes are sections of DNA that hold the blueprints for creating particular proteins. The amino acid sequence of the protein that a gene codes for depends on the nucleotide sequence of that gene. The genetic code can be altered by mutations in the DNA, which can modify the structure and function of proteins. These changes can have a substantial impact on the traits and health of an organism.

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Related Questions

Which environment typically experiences the most extreme seasonal variation?

Answers

Answer: Boreal forests

Explanation:

which bacteria stains with aniline dye

Answers

Aniline dye, also known as Gentian violet, is commonly used in microbiology for staining bacterial cells. One type of bacteria that can be stained with aniline dye is Gram-positive bacteria.

Gram-positive bacteria, which have a thick peptidoglycan layer in their cell wall that retains the dye after staining. Gram-positive bacteria include species such as Staphylococcus, Streptococcus, and Bacillus, among others.

In contrast, Gram-negative bacteria have a thinner peptidoglycan layer and an outer membrane that prevents the retention of the aniline dye. Gram-negative bacteria include species such as Escherichia coli, Pseudomonas aeruginosa, and Salmonella enterica, among others.

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QuestionHow many turn(s) of Calvin cycle is/are required for the synthesis of one molecule of glucose?A1B3C6D10

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In a single cycle, the Calvin cycle can only fix one carbon (of the carbon dioxide). A glucose molecule has six carbon atoms in it. In order to synthesise one glucose molecule, the Calvin cycle must complete six revolutions.

The C3 Cycle's byproducts

One carbon molecule is fixed at each stage of the Calvin cycle.One molecule of glyceraldehyde-3-phosphate is created in three rotations of the Calvin cycle.Two molecules of glyceraldehyde-3-phosphate combine to form one glucose molecule.Using three ATP and two NADPH molecules is necessary for both the conversion of 3-phosphoglyceric acid to glyceraldehyde-3-phosphate and the regeneration of RuBP.18 ATP and 12 NADPH are needed to make one glucose molecule.

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True/False?under sympathetic activation, the heart rate is increased by the release of the neurotransmitter

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True, because the sympathetic nervous system releases norepinephrine

how was it determined that dna carries genetic information

Answers

The determination that DNA contains genetic information was made by a series of scientific experiments over the course of many years.

Oswald Avery and his team produced one of the earliest significant discoveries in 1944.

They found that the substance responsible for changing bacterial genetic traits was DNA. This was discovered by combining a certain strain of bacteria that could break down a specific sugar with a strain of bacteria that was unable to do so.

Further investigation led to the discovery that DNA contains the genetic information necessary for the production of proteins in living things.

The double-helix model of DNA, which was created in 1953 by James Watson and Francis Crick, described how the structure of DNA contained genetic information in the form of four bases.

This finding paved the way for more investigation, which in turn made it possible to sequence and study DNA in order to compare the genetic make-up of other creatures.

Complete Question:

How was it determined that DNA contains genetic information?

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Based on these images, what can you conclude about the organisms? illustration of embryo development of organism 1, organism 2, organism 3, and organism 4. they’re a mixture of vertebrates and invertebrates. they have similarities in their embryonic stages that don’t exist in their adult forms. they all undergo metamorphosis. they all contain a backbone, or spinal column. they’re the same species of organism.

Answers

Based on the image, the conclusion drawn about the four organisms is that:   (2) they have similarities in their embryonic stages that don’t exist in their adult forms; (4) they all contain a backbone, or spinal column.

Embryonic stage is the stage of development of living organism from the fertilization up to 8th week of pregnancy. The fetus remains most sensitive towards abnormalities during this stage. The stage can further be divided as: Blastocyst Development, Blastocyst Implantation, Embryo Development and Fetal Development.

Spinal column is the characteristics of the vertebrate organisms. It forms the backbone of the organism and thus is composed of several types of bones.

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What happens after old blood, which has already circulated through the body, moves into the heart?
answer choicesa. it goes to kidneys, where it is removed
b. it is recirculated through the body
c. it goes to lungs for more oxygen
d. it is removed through the digestive system

Answers

C, it goes to lungs for more oxygen/ the old blood travels to the lungs for more oxygen

which target enzyme in glycogen metabolism requires both α- and β-adrenoreceptors to be activated for full enzyme activity?

Answers

Glycogen phosphorylase is the target enzyme in glycogen metabolism that requires both α- and β- adrenoreceptors to be engaged for optimal enzyme activity.

Glycogen phosphorylase is an enzyme that catalyses the breakdown of glycogen into glucose-1-phosphate, which the body may utilise as energy. Glycogen phosphorylase activity is controlled by a variety of hormones and signalling mechanisms, including the activation of α- and β-adrenoreceptors.

The term "gluten-free" refers to the use of gluten-free products. Activation of α-adrenoreceptors, on the other hand, causes the activation of a protein called Gαs, which enhances the activity of glycogen phosphorylase. As a result, complete activation of glycogen phosphorylase necessitates simultaneous activation of both α- and β-adrenoreceptors, which results in activation of Gαs and inhibition of Gαi, resulting in enhanced enzyme activity and glycogen breakdown.

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the turnover number for this enzyme and substrate is 1.00×104 per minute. how long would it take one molecule of urease to produce 987 product molecules?

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It would take one molecule of urease approximately 0.094 minutes (or 5.64 seconds) to produce 987 product molecules.

The turnover number for an enzyme is defined as the maximum number of substrate molecules that an enzyme can convert into a product per unit of time when the enzyme is saturated with substrate. In this case, the turnover number for the enzyme and substrate is 1.00 × 104 per minute, which means that one enzyme molecule can convert 1.00 × 104 substrate molecules to the product in one minute.

To determine how long it would take one molecule of urease to produce 987 product molecules, we need to use the turnover number and some basic math. Since one molecule of enzyme can convert 1.00 × 104 substrate molecules to the product in one minute, we can calculate how many minutes it would take for one molecule of the enzyme to produce 987 product molecules as follows:

1 minute / 1.00×104 product molecules = x minutes / 987 product molecules

Solving for x, we get:

x = 987 / 1.00×104 = 0.094 minutes

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a component of nucleotides; including adenine, cytosine, guanine, thymine, and uracil.

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A component of nucleotides; including adenine, cytosine, guanine, thymine, and uracil is called DNA.

Deoxyribonucleic acid, also known as DNA, is a molecule that houses the genetic instructions necessary for all living things to develop, function, grow, and reproduce.

Adenine (A), thymine (T), guanine (G), and cytosine (C) are the four nitrogenous bases that make up each of the nucleotides that make up DNA. These nitrogenous bases are arranged in a certain order that determines the genetic code, which carries instructions for making proteins and other significant molecules.

Half of a person's DNA is inherited from their biological mother, while the other half is inherited from their biological father. DNA is handed down through sexual reproduction from one generation to the next. In criminal investigations or paternity testing, for example, scientists employ DNA analysis to identify people and analyze genetic variations.

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The complete question is:

Fill in the blanks,

A component of nucleotides; including adenine, cytosine, guanine, thymine, and uracil is called ___________________.

What is the difference between gymnosperm and angiosperm seeds?

Answers

The key difference between angiosperms and gymnosperms is how their seeds are developed. The seeds of angiosperms develop in the ovaries of flowers and are surrounded by a protective fruit. Gymnosperm seeds are usually formed in unisexual cones, known as strobili and the plants lack fruits and flowers

the ossicles serve as attachment sites of several muscles that control the mandible, tongue, and larynx. (True or False)

Answers

False. The ossicles are the three small bones in the middle ear that transmit sound vibrations from the eardrum to the inner ear. They are not directly involved in the control of the mandible, tongue, or larynx.

What are mandibles?

Mandibles are the lower jawbones in vertebrates, including humans. The mandible is the largest and strongest facial bone and forms the lower jawline. It is a U-shaped bone that articulates with the skull's temporal bone at the temporomandibular joint.

What is the significance of mandibles?

The mandible bone has several vital structures, including the mandibular condyle, which articulates with the skull at the temporomandibular joint, and the coronoid process, an attachment point for the temporalis muscle. The mandible also houses the lower teeth in dental alveoli and contains the mental foramen.

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Balance the equation for the process of respiration

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Balanced equation for respiration:

C 6 H 12 O 6 + 6 O 2 → 6 CO 2 + 6 H 2 O + ATP

What is respiration?

The biochemical definition of respiration, which refers to a metabolic process through which an organism obtains energy (in the form of ATP and NADPH)[2] by oxidising nutrients and releasing waste products, differs from the physiological definition. Although cellular respiration and the subsequent maintenance of life in animals depend on physiologic respiration, the two processes are distinct: cellular respiration occurs within individual organism cells, whereas physiologic respiration deals with the diffusion and transport of metabolites between the organism and the external environment.Lung gas exchanges take place through perfusion and ventilation.Perfusion is the passage of blood through the pulmonary capillaries, whereas ventilation is the movement of air in and out of the lungs.

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please just pair them i really needed help on this one like really

Answers

phenotype-b

genotype-d

homozygous dominant-a

homozygous recessive-c

heterozygous-e

i believe this is correct i’m doing the same thing in my class

hope this helps :)

systemic circulation begins when the oxygen rich blood leaves the heart and travels to all parts of the body through three types of blood vessels (true or false)

Answers

Systemic circulation begins when the oxygen rich blood leaves the heart and travels to all parts of the body through three types of blood vessels.

The given statement is true.

As oxygen-rich blood exits the left ventricle of the heart and enters the aorta, the body's biggest artery, systemic circulation starts. The blood then flows via smaller arteries, arterioles, and finally into capillaries, the tiniest blood vessels in the body. Capillaries exchange oxygen and nutrients with the body's tissues. The oxygen-depleted blood then passes through venules, tiny veins, and finally bigger veins before returning to the right atrium of the heart to restart the pulmonary circulation process.

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The process of protein turnover involves the _____. a. conversion of half the protein we eat to glucose for energy b. loss of amino acids by excretion through the kidneys when cells die c. use of amino acids that have been conserved from the breakdown of old cells d. annual replacement of old cells with new protein that has entered the body in food e. excretion of intracellular working proteins as old cells wear out

Answers

The process of protein turnover involves the excretion of intracellular working proteins as old cells wear out.

The correct option is E.

What is protein turnover?

Protein turnover is the process by which cells in the body continually synthesize new proteins and break down old or damaged proteins. This process is important for maintaining the proper functioning of cells and tissues in the body.

Protein turnover involves two main processes: protein synthesis and protein degradation.

Protein synthesis involves the formation of new proteins from amino acids, while protein degradation involves the breakdown of existing proteins into their component amino acids. The balance between protein synthesis and degradation is important for maintaining the appropriate protein levels in cells and tissues.

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what is the sea turtle egg incubation system in particle view? show the incubation system

Answers

Answer: answer of question

Explanation:

Which type of organic molecule serves as long-term energy storage in humans?

a. Proteins

b. Starch

c. Nucleic Acid

d. Fats (Triglycerides)

e. B and D

Answers

The correct answer is d. Fats (Triglycerides). Fats, also known as triglycerides, are a type of organic molecule that serve as a long-term energy storage in humans.

Fats, also known as triglycerides, are a type of organic molecule made up of three fatty acids and a glycerol molecule. They are an important part of the human diet, as they provide a long-term source of energy and can help keep us healthy. Fats can be found in foods such as meat, butter, vegetable oils, and nuts. When broken down, they release energy which can be used by the body for a variety of tasks. Fats are also essential for cell membranes, hormone production, and the absorption of vitamins and minerals.

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what is the primary difference between a worm and a virus?

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The main distinction between a worm and a virus is that worms are standalone hostile programs that may self-replicate and spread after they have infiltrated the system, whereas viruses must be activated by their host.

The main distinction between a virus and a worm is that a virus can only spread via attaching to something, such an executable program. Worms can tunnel into computers and can propagate without attaching to anything.

A virus spreads across the system more quickly than a worm. A gadget can facilitate the rapid worm propagation. A virus is an executable program that can modify or delete data. It is typically attached to another executable file.

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Which of the following is the best example of overexploitation of resources
as a result of the tragedy of the commons?
A. Growth of the human population.
B. Extinction of the passenger pigeon
C. Formation of the national parks system
OD. Selective cutting of trees in a forest

Answers

Extinction of the passenger pigeon is the best example of overexploitation of resources as a result of the tragedy of the commons, option B.

What is overexploitation of resource?

Overexploitation of resources refers to the excessive use or extraction of natural resources, beyond their capacity for regeneration, which can lead to depletion, degradation, and even the extinction of species.

The tragedy of the commons is a situation where a shared resource is overused and eventually depleted because individuals pursue their own self-interest and do not consider the long-term effects on the resource. In the case of the passenger pigeon, large flocks of birds were hunted for food, and there was no regulation of the hunting. This led to the extinction of the passenger pigeon.

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Answer:Extinction of the passenger pigeon

Explanation:

the probability of a structural defect as the result of exposure to a teratogen is greatest during the early ______ period, when organs are being formed.

Answers

The correct answer is B. Embryonic. During the embryonic period (typically weeks 3-8 of gestation), organs and other structures of the body begin to form.

During this time, any exposure to a teratogen (a substance that can cause malformation or birth defects) increases the risk of a structural defect.The growth and production of the human embryo is known as embryonic development or human embryogenesis. It is distinguished by early developmental events in the embryo, such as cell division and cellular differentiation. In terms of biology, the growth of the human body involves the passage from a one-celled zygote to an adult human being. When a sperm cell successfully reaches an egg cell and combines with it, fertilisation takes place (ovum). Teratogens can affect a baby or pregnancy depending on a number of variables. The timing and duration of exposure, the stage of pregnancy at the time of the exposure, whether a parent's genes predispose them to the exposure, and the kind of agent they were exposed to are all factors that affect risk.

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complete question:The probability of a structural defect as the result of exposure to a teratogen is greatest during the early ______ period, when organs are being formed.

A. germinal

B. embryonic

C. newborn

D. fetal

4. Drugs such as AZT work by inhibiting the function of reverse transcriptase. Integrase Strand Transfer Inhibitors (INSTI) are a class of antiretroviral drugs designed to block the action of integrase. Sketch a model showing how AZT and INSTI work.​

Answers

AZT and INSTI (Integrase Strand Transfer Inhibitors) both are inhibiting drugs.

What is the mechanism of working AZT and INSTI?

In place of thymine, reverse transcriptase substitutes AZT into the developing DNA chain. But, AZT is unable to form the required phosphate bond with the following nucleotide because it possesses a 39 azido group rather than a 39 hydroxyl group.

After incorporating themselves into viral DNA, nucleoside reverse transcriptase inhibitors (NRTIs) prevent reverse transcription by triggering chain termination. Some medications must be intracellularly phosphorylated in order to be effective.

Thus, this is how AZT and INSTI work.

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what is the benefit of a microorganism that can degrade hydrocarbons and are the ones available currently effective?

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Microorganisms that can degrade hydrocarbons have many benefits, these include Bioremediation.

In general , microorganisms are used for the process of bioremediation of hydrocarbon-contaminated sites. They easily break hydrocarbons into less toxic compounds supporting environment and minimizing contamination.

Also , effectiveness of these microorganisms which helps to degrade hydrocarbons depends on specific hydrocarbon compound, also the environmental conditions, and the type of microorganism used. Many  microorganisms end up having high effectiveness in degrading certain hydrocarbon compounds, others may not be as effective.

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the building of complex organic molecules from simpler ones is called

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The building of complex organic molecules from simpler ones is called "anabolism."

What is anabolism?

Anabolism is a metabolic process in which living organisms synthesize complex molecules from simpler ones, using energy derived from catabolic reactions. This process involves the formation of covalent bonds between smaller molecules, which results in the formation of larger molecules, such as proteins, nucleic acids, and complex carbohydrates.

Anabolism is an essential process for growth, repair, and maintenance of living organisms, and it requires energy input from sources such as ATP or sunlight in photosynthetic organisms.

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what is the key concept of the skeletal system

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The key concept of the skeletal system is support and protection. The bones of the skeletal system provide support for the body, helping it to maintain its shape and allowing it to move in a variety of ways.

The skeletal system also provides defence for the body's critical organs, including the brain, heart, and lungs. The chest and internal organs are shielded from outside influences by the protective cage formed by the ribs.

The brain and spinal cord are shielded from harm by the skull and vertebrae. We can move our bodies in a number of ways thanks to the attachment points provided by the bones in our skeletal system for our muscles and tendons.

The skeletal system also houses bone marrow, which is responsible for producing essential red and white blood cells.

Our body wouldn't be able to fend against infection without these cells. The skeletal system is crucial to our general health and welfare because of these roles.

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how many specific lines of defense are formed by our immune system​?

Answers

Our immune system has three specific lines of defense that work together to protect us from pathogens and foreign invaders:

As per the question given,  

The first line of defense is the innate immune system, which provides immediate, nonspecific protection against a wide variety of pathogens. Physical barriers such as skin and mucous membranes as well as immune cells such as macrophages and NK cells are involved.

The second line of defense is also part of the innate immune system, but provides a more targeted response to specific pathogens. It involves inflammation, fever, and the production of cytokines and chemokines that help recruit immune cells to the site of infection.

The third line of defense is the adaptive immune system, which provides long-term protection against some pathogens.This involves the production of antibodies and the activation of T cells, which recognize and attack specific pathogens that the body has encountered.

Together, these three lines of defense form a complex and sophisticated immune system that works tirelessly to keep us healthy and protected from harmful invaders.

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if the glucose inside the cell needed to travel to another part of the body, describe how it would leave this, so identify the cellular process this would be

Answers

Answer:

Explanation:

If glucose inside a cell needs to travel to another part of the body, it can leave the cell through a process called facilitated diffusion. Facilitated diffusion is a type of passive transport that allows substances to move across the cell membrane from an area of high concentration to an area of low concentration, without the need for energy input from the cell.

In facilitated diffusion, glucose moves through special protein channels called glucose transporters, which are embedded in the cell membrane. These transporters bind to glucose molecules and undergo a conformational change that allows them to transport the glucose molecule across the membrane. The transporters are specific to glucose and will only allow glucose to pass through, while other substances are excluded.

Once the glucose has entered the bloodstream through facilitated diffusion, it can travel to other parts of the body through the circulatory system. From there, glucose can enter other cells and be used for energy or stored as glycogen for future use.

It is important to note that the process of facilitated diffusion requires a concentration gradient to be present. If the concentration of glucose is the same inside and outside of the cell, there will be no net movement of glucose, and the glucose will remain inside the cell. Therefore, for facilitated diffusion to occur, there needs to be a concentration difference between the inside and outside of the cell.

Write a procedure that will demonstrate the role of yeast in fermentation using the following materials: distilled water, bakers yeast, dextrose/glucose/sucrose, plastic water bottle, beaker, hot plate, graduated cylinder, balloons, and funnel.

Answers

Answer:

Here is a procedure that demonstrates the role of yeast in fermentation using the materials listed:

Materials:

- Distilled water

- Bakers yeast

- Dextrose/glucose/sucrose (one of these sugars)

- Plastic water bottle

- Beaker

- Hot plate

- Graduated cylinder

- Balloons

- Funnel

Procedure:

1. Start by measuring out 100 mL of distilled water using the graduated cylinder and pouring it into the plastic water bottle.

2. Add 1 gram of baker's yeast to the water in the bottle and stir gently to mix.

3. Next, add 5 grams of dextrose, glucose, or sucrose to the bottle using the funnel.

4. Gently swirl the bottle to mix the yeast and sugar with the water.

5. Place the balloon over the mouth of the bottle, making sure it is securely attached.

6. Set the bottle aside in a warm, dark place for at least 30 minutes to allow fermentation to occur.

7. While waiting for the fermentation to occur, fill the beaker with water and place it on the hot plate to heat.

8. Once the water in the beaker has reached a boil, turn off the hot plate.

9. Carefully remove the balloon from the mouth of the bottle and use the graduated cylinder to measure the volume of gas that has been produced in the bottle. Record this value.

10. Carefully pour the hot water from the beaker into the plastic water bottle and swirl to mix.

11. Quickly replace the balloon over the mouth of the bottle.

12. Observe the balloon and record any changes in size or shape that occur over the next few minutes.

13. Dispose of the contents of the bottle in a proper manner.

Explanation:

In this procedure, the role of yeast in fermentation is demonstrated by combining yeast, sugar, and water in a bottle and observing the production of gas (carbon dioxide) as a result of the fermentation process. The balloon placed over the mouth of the bottle allows the gas to collect and be measured. Heating the bottle after the fermentation process speeds up the chemical reaction and causes an increase in gas production, which is observed by the expansion of the balloon.

Tue/False? over 95% of organisms are vertebrates found phylum chordata.

Answers

Answer:

True!

Explanation:

Invertebrates make up at least 95 percent of all animal species. Vertebrates are animals that have a backbone. All vertebrates belong to the phylum Chordata. They include fish, amphibians, reptiles, birds, and mammals.

Hope this helps. Not sure if you were taking about animals.

what would happen to the leaf if the stomata were open all the time?

Answers

The process of transpiration, which occurs when water evaporates from the surface of leaves, would be excessive if stomata were always open.

They can expand or contract to open or close the pore, which is essential for controlling gas exchange for photosynthesis as well as moisture levels in tissues. According to Torii, who is also a professor at Nagoya University in Japan, if plants cannot produce stomata, they are not alive and cannot "breathe."

Increased water loss is a drawback of wide open stomata (transpiration). Cool-season turfgrass stomata must make choices as a result. Yet, if a plant loses too much water through transpiration, it may become injured or die. Photosynthesis is how a plant gathers and stores energy.

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Which of the following should be clearly demonstrated on a lateral projection of the leg?1. Knee joint2. Ankle joint3. Entire femoral condyles if you need local information or up-to-date information on current events, you would have more success using which source? a. encyclopedias b. journals and online databases c. magazines d. newspapers and web sites Uinn signs a check "pay to the order of Ronda" drawn on Quinns account in Suburban Bank. Quinn has $400 in his account but the amount of the check is $500, which the bank pays. This isa, a stale checkb, a dishonored checkc, an overdraftd, a postdated check Where does the government gets its instructions? Follow these steps to graph this parabola:y = xPlot the y-intercept21. Find/Plot the vertex2.3. Find/plot one more point4. Reflect #2 and #3 over the axis of symmetry-10-9-8-7 -6 -5 -4 -3 -27109876543210 1 2 3 4 5 6 7 8 9 10-124x + 4-3-4-5-6-7-8-9X Mrs. Grady surveyed 30 students, 13 of which said they liked basketball, 18 of which said they liked hockey, and 4 of which said they liked both sports. (a) How many students did not like either sport?(b) How many students liked exactly one of the sports? the immediate source of energy for atp synthesis in chloroplasts is _______, while the ultimate source of energy for atp synthesis in chloroplasts is _______. how many grams are 7.00 x 10^22 molecules of NaOH? What are 4 words for sad? If a buyer is evaluating a sales offering on a salesperson's eagerness to satisfy, the buyer is assessing the sales offering on the basis of a _____. What holds atoms together in a metal?Intramolecular Forces:Intramolecular forces refer to the electrostatic attractions that cause atoms of a substance to bind together. The three types of intramolecular forces are:Ionic bondsCovalent bondsMetallic bonds The quotient of a number and 7 is 8. Use n to represent a number. When can a correlation coefficient based on an observational study be used to support a claim of cause and effect? A. Never B. When the correlation coefficient is close to -1 or +1. C. When the correlation coefficient is equal to -1 or +1. D. When the scatterplot of the data has little vertical variation. Cervical dysplasia is best described asA. infectiousB. precancerousC. autoimmuneD. cancer Because competitors in oligopolistic industries are so interdependent, it is especially important for managers in those firms to monitor and respond to changes their competitors make. true or false? How much is a 3 digit straight in Michigan? If mules were no longer sterile but could produce offspring, then there are no other reproductive barriers to overcome.a. Trueb. False In one to two sentences, explain why there is more concern for severe storms in low-pressure systems what is black in latin Which of the following statements regarding the estate tax marital deduction is correct?A. A QTIP trust will qualify for the marital deduction, if the executor makes the appropriate election.B. The surviving spouse must be a U.S. citizen for the decedent to qualify for the marital deduction even using a QDOT.C. The marital deduction only applies in community property states.D. If the decedent received a marital deduction, the property is excluded from the surviving spouse's gross estate upon the surviving spouse's deat