B) Although all stars other than the sun are far away from Earth, some are closer than others.
Are stars actually closer to the Earth?
This statement is true. The distance between the stars and the Earth varies greatly depending on the location and movement of the stars. Although all stars are incredibly far away from Earth, some are relatively closer than others. For example, the nearest star to Earth, Proxima Centauri, is approximately 4.24 light-years away, while the farthest known star is more than 13 billion light-years away.
Most stars in our galaxy are tens of thousands of light-years away from Earth, and some are even hundreds of thousands of light-years away.
Therefore, the distance between the stars and the Earth can vary significantly, and no one statement can apply to all stars.
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Answer:
B) Although all stars other than the sun are far away from Earth, some are closer than others.
-I hope I was helpful even though I'm not as detailed as the other person-
Plants that produce two types of spores are known as
this muscle originates on the zygomatic arch and inserts at the angle and ramus of the mandible. it is responsible for closing the jaw.
Masseter muscle originates on the zygomatic arch and inserts at the angle and ramus of the mandible. it is responsible for closing the jaw.
What is zygomatic?
A pair of bones in the human skull called the zygomatic bone, commonly referred to as the cheekbone, creates the prominence of the cheek. It is situated above the maxilla (upper jaw), the temporal bone, and the orbit, which lies below (side of the skull).
The zygomatic arch, which connects the temporal bone to the maxilla and creates the lateral border of the temporal fossa, is one of the components of the zygomatic bone (a depression on the side of the skull). The zygomatic bone, which supports the cheeks and aids in defining the contour of the face, is a key component of facial anatomy.
The masseter muscle is the one you're referring to. It is one of the primary chewing muscles and lifts the mandible (lower jaw) to allow the mouth to close. The masseter muscle attaches to the angle and ramus (vertical section) of the mandible after originating from the zygomatic arch (cheekbone).
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Synaptic communication between two neurons usually occurs via ____.a.direct contactb.molecular transductionc.chemical messengersd.electrical signaling
Option c is Correct. Synaptic communication among the two neurons usually occurs at chemical messengers. Neuromuscular junctions are synaptic connections between muscle cells and neurons.
The electrical "action potentials" and chemical neurotransmitters used by neurons to interact with one another. A chemical neurotransmitter is released by neuron A as a result of an action potential at the connection (synapse) between the two neurons.
Synapses are microscopic openings where communication between neurons takes place. Here, specific sections of the two cells (presynaptic and postsynaptic neurons) are brought close enough to one another to allow for chemical transfer. The synapse, also known as the neuronal junction, is the location where nerve impulses are sent between two nerve cells (neurons) or between a neuron and a gland or muscle cell (effector).
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Correct Question:
Synaptic communication between two neurons usually occurs via ____.
a. direct contact
b. molecular transduction
c. chemical messengers
d. electrical signaling.
How do you know if its anterior or posterior?
Anterior refers to the front side of the body ,which is front of uterus
Posterior refers to the back side of the body ,which is closest to your spine.
The terms "anterior" and "posterior" are used to describe the position of a structure relative to the front or back of the body, respectively.
One way to determine whether a structure is anterior or posterior is to consider its position relative to other structures or landmarks in the body. For example, the nose is located on the anterior (front) surface of the head, while the spine is located on the posterior (back) surface.
Another way to determine whether a structure is anterior or posterior is to consider its function or relationship to other structures. For example, the anterior (front) portion of the heart is responsible for pumping blood to the body, while the posterior (back) portion of the heart receives blood from the body and pumps it to the lungs.
In general, it is important to have a good understanding of anatomical terminology and to use consistent anatomical landmarks when describing the position of structures in the body.
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what is the most important indicator of human behavior, according to scientists?
According to scientists, the most crucial sign of human conduct is the capacity for planning.
The social sciences, which encompass psychology, sociology, ethology, as well as their different subfields and schools of thought, study human behaviour.Genetics alone does not fully explain human behaviour. Environmental circumstances and genetic predispositions are the main determinants of personality in humans. Genes can have a significant impact on human behaviour in some situations, while the environment can have a significant impact in other situations. Their behaviour is influenced by four main factors: biological factors, such as age and sex; biosocial factors, which refer to how humans communicate with one another; cultural factors, which concern the culture to which they belong; and situational factors, which refer to the environmental difficulties they face.
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What heterotrophic in biology means?
Heterotrophic organisms in biology are those that rely on other organisms for nutrition and energy.
These creatures must get their energy and nutrition from other sources, like plants or other animals, because they are unable to make their own food.
All branches of the animal world, including humans, contain heterotrophs, which can be either carnivorous or omnivorous. Certain fungi and protists also contain heterotrophs.
Heterotrophs are crucial parts of food webs since they are the main consumers of the nutrients and energy that autotrophs create.
Although they offer energy and nutrition to other creatures in the form of prey, they also serve as the foundation for all higher trophic levels.
All terrestrial and aquatic ecosystems depend on heterotrophic organisms because they serve as the primary conduit between producers and more sophisticated consumers.
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the cell wall is a rigid structure that surrounds plant cells. the materials found in the cell wall protect the plant cells and give plants structural support. what conclusion can be made given the above information?
The structure of a cell organelle is directly related to its function.
What are the functions of a cell organelle?An organelle is a subcellular structure that has one or more specific functions in a cell, such as an organelle in the body. The most important cellular organelles are the nuclei, which preserve genetic information; mitochondria that produce chemical energy.
The most important organelles and cellular structures in the cytoplasm are: nucleus, nucleolus, ribosome, vesicle, rough endoplasmic reticulum, Golgi apparatus, cytoskeleton, smooth endoplasmic reticulum, mitochondrion, vacuole, cytosol, lysosome, centriole.
Animal cell organelles include the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, vesicles, and vacuoles. Ribosomes are not membrane-enclosed, but are still commonly referred to as organelles in eukaryotic cells.
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phosphatases remove phosphate groups from activated intracellular enzymes; this produces phosphate ions (true or false)
True. Phosphatases create phosphate ions when they remove phosphate groups from intracellular enzymes that have been activated.
An enzyme called a phosphatase takes a protein's phosphate group out. As these two groups of enzymes work together, the proteins in a cell's activities are modulated, frequently in reaction to outside stimuli. Phosphatases, for instance, remove phosphate groups by hydrolyzing monoesters of phosphoric acid into phosphate ions and molecules containing free hydroxyl (OH) groups.
By hydrolyzing phosphoric acid monoesters into a phosphate ion and a molecule with a free hydroxyl group, phosphatase is an enzyme that removes a phosphate group from its substrate. Dephosphorylation in biochemistry refers to the hydrolysis process used to remove a phosphate (PO43) group from an organic molecule.
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explain why we need to use natural resources carefully
Answer:
Explanation:
We need to use natural resources carefully because they are finite and limited. Natural resources are the materials and substances that occur in the natural environment, such as minerals, water, soil, air, and plants, that are essential for human survival and for the functioning of ecosystems. However, human activities, such as mining, deforestation, and pollution, have resulted in the depletion and degradation of many natural resources, leading to environmental problems such as habitat destruction, soil erosion, water scarcity, and climate change.
When we use natural resources carelessly, we not only deplete them faster but also degrade the quality of the environment. Therefore, we need to conserve and manage natural resources wisely by reducing waste, recycling, reusing, and adopting sustainable practices. This can help to ensure that natural resources are available for future generations and that ecosystems can continue to provide essential services such as clean air, water, and soil. In addition, using natural resources carefully can lead to economic benefits by reducing costs, improving efficiency, and creating new opportunities for sustainable development.
what’s the size of the smallest object that can be resolved by a visible-light (use green) microscope?
The smallest object that a visible-light microscope can discern using green light is around 200 nanometers in size.
The diffraction limit, which is governed by the wavelength of light employed and the numerical aperture (NA) of the lens system, determines the smallest object that can be resolved by a visible-light microscope.
Green light has a wavelength of roughly 550 nanometers (nm), or 0.55 micrometres (m) in visible light. The potential resolution limit for a green-light microscope is around 200 nanometers, or 0.2 micrometres, assuming a high-quality lens with a NA of 1.4.
This indicates that the smallest object that a visible-light microscope can discern using green light is around 200 nanometers in size. In practise, however, other factors such as lens aberrations and sample preparation might alter a microscope's true resolution. As a result, reaching the diffraction limit of resolution is not always feasible.
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the part of the human microbiome that includes all of the viruses that are associated with the body is called the human_______
The part of the human microbiome that includes all of the viruses that are associated with the body is called the human virome.
What is microbiome?A microbiome is a collection of microbial organisms that live on or in the human body. This includes bacteria, fungi, and viruses. It is estimated that the human body contains over 100 trillion microbial cells, with the majority of them being bacteria. The microbiome plays a vital role in human health, and disruptions to the microbiome have been linked to a variety of health conditions. The microbiome also influences the body's immune system, metabolism, and digestion. It is an essential part of human health and is just beginning to be studied and understood.
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Enzymes accelerate a reaction by making the δg more favorable. True or False?
The given statement that "Enzymes accelerate a reaction by making the δg more favorable" is true because enzymes accelerate a reaction by lowering the activation energy required for the reaction to occur. they achieve this by stabilizing the transition state of the reaction, which reduces the energy needed to reach that state
Enzymes lower the activation energy required for a reaction to proceed, which in turn makes the Gibbs free energy change (ΔG) more negative and therefore the reaction more favorable. By lowering the activation energy, enzymes make it easier for reactants to overcome the energy barrier and form products.
As a result of this lower activation energy, the Gibbs free energy change (ΔG) for the reaction becomes more negative, making the reaction more energetically favorable. This means that the reaction can occur more quickly and with a greater yield of products.
Therefore, enzymes can accelerate reactions by making the ΔG more favorable.
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input from the retinas of both eyes is processed in the
Input from the retinas of both eyes is processed in the visual cortex
Where is the visual cortex?
Input from the retinas of both eyes is processed in the visual cortex, which is located in the occipital lobe at the back of the brain. The visual cortex receives signals from both eyes and integrates this information to produce a single image with depth and perspective.
This process is known as binocular vision, which allows for depth perception and the ability to see the world in three dimensions.
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Meiosis in animals serves all but which one of the following functions?
A. the formation of gametes
B. the production genetically identical daughter cells
C. the reduction of chromosome number by half
D. the formation of haploid germ cells.
Statement B is the correct option. This statement is true about mitosis, not meiosis because the genetically identical daughter cells are produced during mitosis.
Mitosis is the process that helps to produce two genetically identical daughter cells whereas meiosis is the process that helps to produce genetically distinct daughter cells from the parent cells. In mitosis, the chromosome number remains the same whereas, in meiosis, the chromosome number is reduced to half.
Mitosis occurs in the somatic cells where as meiosis occurs in the gametes. So genetic variation doesn't change during mitosis but genetic variation is increased during meiosis.
All the given statements are true of meiosis except statement B which is true of mitosis.
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what is the name of the stored energy molecule our cells and bodies need?
The energy used and stored by cells comes from adenosine triphosphate (ATP). A nitrogenous base, ribose sugar, and three serially linked phosphate groups make up the nucleoside triphosphate structure of ATP.
Cells need chemical energy to do three broad types of tasks: to drive metabolic events that would not happen naturally; to transport necessary molecules across membranes; and to perform mechanical labour, such as moving muscles. Chemical energy cannot be stored by ATP; lipids and carbohydrates such as glycogen are better at doing so. Energy is transformed from storage molecules into ATP when the cell needs it. ATP transports energy to areas of the cell where energy-intensive processes are occurring.
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The long, heavy tail of a spider monkey enables the monkey to easily vary its. A) weight. B) momentum. C) inertia. D) center of gravity. E) none of these.
The long, heavy tail of a spider monkey enables the monkey to easily vary its D. center of gravity.
The center of gravity is the point in an object where the force of gravity appears to act. In the case of a spider monkey, the center of gravity is an important factor in determining its balance and stability as it moves through the trees.
Spider monkeys are arboreal primates that spend most of their time in trees, using their long limbs and prehensile tail to move from branch to branch. The tail is able to wrap around branches and provide support, allowing the monkey to shift its weight and maintain its balance. By varying the position of its tail, a spider monkey can adjust its center of gravity and maintain stability as it moves through the trees.
Therefore, the correct answer is D) center of gravity.
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the animals on the farm worked hard. what was their consolation?
It is not specified in the given sentence what the consolation of the animals on the farm was. The sentence only states that the animals worked hard.
But does not provide any information about their reward or consolation for their hard work. It is possible that the animals received some form of reward, such as food or rest, for their hard work, but this cannot be determined from the given sentence alone.The original sentence states that the animals on the farm worked hard, but it does not provide any information about their consolation or reward for their efforts. It is possible that the animals received some form of reward or consolation for their hard work, but this cannot be determined from the given sentence alone.In literature, the concept of consolation is often associated with comfort, solace, or relief from grief or hardship. It is possible that the animals on the farm received some form of comfort or relief from their hardships, but this is not mentioned in the sentence.Without additional context or information, it is impossible to determine what the consolation of the animals on the farm was, if they received any at all.
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How are traits inherited through multiple alleles?
Multiple alleles are inherited from half of our genes from mother, & the other half from father, An excellent example of multiple allele inheritance is human blood type. Blood type exists as four possible phenotypes A, B, AB, & O.
In general , Multiple allelism, takes place when more than two gene forms exist for the same locus. Example includes, if one allele of the gene producing height can be tall, while the other allele can be dwarf. this indicates that given genes contains, three or more alleles in the population.
Hence, the best and popular example of multiple alleles in humans is the ABO blood groups, as discussed in the Non-Mendelian Inheritance concept. Also other human traits characterized by multiple alleles would includes hair color, hair texture, eye color.
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FILL IN THE BLANK. grouping organisms based on their evolutionary relationships is the process of __________, which is part of taxonomy
Grouping organisms based on their evolutionary relationships is the process of Systematics which is part of taxonomy.
The study of biological diversity and the interactions between species is generally termed as sytematics. Taxonomy, the component of systematics that focuses on the theory and practice of classification, is not easily distinguished, and biologists frequently use the terms interchangeably.
What is an example of systematics?Reptiles, for example, are animals that lay eggs and have scales, whereas mammals are animals that have live births and have fur or hair. All humans, more specifically, share the same features and hence belong to a group, or taxon, of the genus Homo and species sapien.
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which of the main structures of a neuron releases the signals used to communicate with other neurons or cells?
The main structures of a neuron releases the signals used to communicate with other neurons or cells is (4). terminal buttons correct option.
The signal is sent to neighboring neurons through the terminal buttons, which are found at the end of the neuron. The terminal button has a synapse a gap at the end. Signals are sent from one neuron to another through neurotransmitters.
The foundation of the nervous system are neurons. They communicate with various body parts by both receiving and sending signals. This is done through both electrical and physical means. The transfer of information is facilitated by a variety of distinct types of neurons.
The sensory neurons transmit data to the brain from the sense receptor cells dispersed throughout the body. In contrast, motor neurons are responsible for sending information from the brain to the muscles. Information is passed between various neurons in the body by interneurons.
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Full question : Which of the main structures of a neuron releases the signals used to communicate with other neurons or cells?
1. the synapse
2. 100 billion
3. soma
4. terminal buttons
A rise in automobile traffic by commuters causes an increase in
photochemical smog in a city. City planners are looking into improving the
city's bus system to help reduce the amount of automobile exhaust produced
by people who commute. One person states, "The bus system will be
expensive to develop, but it will improve the overall health of our city's human
population." Which of the following does this statement represent?
A. A risk assessment
B. A cost-benefit analysis
C. An epidemiological study
OD. A dose-response analysis
The statement "The bus system will be expensive to develop, but it will improve the overall health of our city's human population" represents a cost-benefit analysis.
What is a cost-benefit analysis?A cost-benefit analysis involves weighing the costs and benefits of a particular course of action. In this case, the cost of developing the city's bus system is weighed against the benefits of reducing automobile exhaust and improving the overall health of the city's human population.
The analysis of the cost of improving the city's transport systems against the benefits is a cost-benefit analysis.
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Answer:
B. A cost-benefit analysis
Explanation:
Above answer is correct, thank you so much!
Suppose that titanium and sulfite can be combined to form an ionic compound with the formula unit Ti(SO3)2. A chemical equation then requires 3 such units. How many atoms is that total?
Responses
A 33
B 2727
C 8181
D 9
A formula unit of Ti(SO3)2 contains 9 atoms (2 titanium atoms and 7 sulfur atoms). Multiplying by 3 formula units gives 2727 atoms.
What is formula?A formula is a symbolic representation of a mathematical concept. It is a set of mathematical symbols and operations that can be used to express a specific problem or solution. Formulas are used to represent relationships between different variables, to calculate values, and to predict outcomes. In many mathematical fields, science, and engineering, formulas are employed. They are also used in computer programming and other applications. Formulas are often used to make calculations and predictions easier or faster.
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At which interval are humidified oxygen systems replaced to prevent infection?
A: 1 day
B: 3 days
C: 5 days
D: 7 days
Answer:
1 day
Explanation:
Humidifier oxygen delivery needs to be changed out daily to prevent infection.
Humidifier oxygen delivery needs to be changed out daily to prevent infection.
What is Humidified oxygen?In order to lessen symptoms of dryness in the upper airways, oxygen might be humidified. Although the benefits of humidifying low-flow oxygen administered using nasal cannulae have not been clearly shown, this may be significant in high-flow oxygen therapy.
Although some local guidelines encourage its use, UK national guidance does not. No matter the flow rate, oxygen is frequently humidified in several nations, including China and Japan.
The purpose of this review was to explain how well humidifying low-flow oxygen works.
Therefore, Humidifier oxygen delivery needs to be changed out daily to prevent infection.
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Why would tertiary consumers have the highest concentrations of toxins?
Answer: Because the amount of non-biodegradable toxic substances accumulated within an organism's body increases higher up the food chain, or as we go higher up the trophic levels.
Explanation:
What are appropriate means for leaving evidence of presence? (Select all that apply)
Fingerprints
notes
DNA
All option are appropriate means for leaving evidence of presence (Fingerprints ,notes ,DNA).
Leaving evidence of your presence helps the US government find, identify, and reclaim you. The Rule of Conduct explains your obligation to flee and assist others in fleeing. Planning for post-escape evasion and recovery is part of that duty.
What exactly are fingerprints?Fingerprints are impressions created by the papillary ridges on the tips of the fingers and thumbs. Because the ridge arrangement on each human finger is unique and does not change with growth or age, fingerprints provide an ironclad form of personal identification.
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Appropriate means of leaving evidence of presence include biological markers such as fingerprints and DNA, as well as intentional signals like leaving a note. These indications of presence can reveal identity and intentions.
Explanation:The question seeks to identify appropriate means for leaving evidence of presence. The means indicated, such as fingerprints, notes, and DNA, are indeed appropriate ways to show physical or personal presence. Fingerprints and DNA are biological markers that each person leaves behind which can reveal identity upon investigation. In the case of fingerprints, patterns are unique to each individual, left on surfaces by the oils and sweat secreted by skin. DNA can be left through bodily fluids or discarded skin cells. Leaving a note is a more direct and intentional way to announce presence, typically used when wanting another person to know of your presence after you've left a location.
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what proportion of the f2 are expected to be ttrrgg ?
The predicted percentage of the f2 is ttrrgg the proportion of the F2 generation expected to be TtRrGg is 1/64, or approximately 0.016.
we need to know the genotype frequencies of each gene separately, assuming they are all independently assorting.
Let's assume that the three genes are AaBbCc, and that each gene has two alleles.
We can use the Punnett square method to calculate the possible genotypes of each gene:
Gene A: AA, Aa, aa (assuming A is dominant and a is recessive)
Gene B: BB, Bb, bb (assuming B is dominant and b is recessive)
Gene C: CC, Cc, cc (assuming C is dominant and c is recessive)
The probability of obtaining each genotype for each gene is:
Gene A: AA = 1/4, Aa = 1/2, aa = 1/4
Gene B: BB = 1/4, Bb = 1/2, bb = 1/4
Gene C: CC = 1/4, Cc = 1/2, cc = 1/4
To obtain the probability of a particular genotype combination, we can use the product law of probability, which states that the probability of two or more independent events occurring together is the product of their individual probabilities.
Therefore, the probability of obtaining the genotype TtRrGg (assuming T, R, and G are dominant and t, r, and g are recessive) is:
P(TtRrGg) = P(T) x P(t) x P(R) x P(r) x P(G) x P(g)
= (1/2) x (1/2) x (1/2) x (1/2) x (1/2) x (1/2)
= 1/64
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Note: The complete question would be as bellow,
what proportion of the f2 are expected to be ttrrgg ? (hint: consider the probability of obtaining each genotype for the three genes separately and then use the product law.)
Protein synthesis in eukaryotes is similar to the process in prokaryotes in that both eukaryotes and prokaryotesA) have intronsB) use codons to determine polypeptide sequencesC) have exonsD) use methionine as the "start" amino acidE) require snRNPS
A couple of parts of protein combination are less mind-boggling in eukaryotes. In prokaryotes, mRNA is polycistronic and may convey a few qualities that are meant to give a few proteins. The correct answer is (B).
In eukaryotes, every mRNA is monocistronic and conveys just a solitary quality, which is converted into a solitary protein.
In the two prokaryotes and eukaryotes, the record happens in three fundamental stages: commencement, prolongation, and end.
The Instrument of Protein Amalgamation. Similarly, as with mRNA amalgamation, protein combination can be partitioned into three stages: commencement, prolongation, and end. The course of interpretation is comparative in prokaryotes and eukaryotes.
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what is the genotype of person a in the pedigree (genotype)?
Genotype of person A in the pedigree (genotype) A with phenotype rr (homozygous recessive) is inability to roll the tongue.
The ability to roll one's tongue is a genetic trait governed by a single gene with two alleles, one dominant and one recessive. The dominant allele (R) creates a functional protein that allows tongue rolling, whereas the recessive allele (r) creates a non-functional protein that prevents tongue rolling.
Individuals who are homozygous recessive for this trait (rr) do not produce the protein required for tongue rolling and thus cannot roll their tongue. This is referred to as a recessive trait because it is only manifested when a person inherits two copies of the recessive allele (one from each parent).
Individuals with this trait who are heterozygous (Rr) have one dominant allele and one recessive allele. They produce enough protein to allow tongue rolling, so they can roll their tongue. They do, however, carry a copy of the recessive allele and can pass it on to their children.
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Correct form of question would be:
what is the genotype of person A in the pedigree (genotype)?
Click on image tab for pedigree chart
Which of the following parasites has the egg as the infective stage of the parasite for humans?
A. Enterobius vermicularis
B. Taenia solium
C. Trypanosoma cruzi
D. Schistosoma mansoni
The egg is the stage of a parasite that is infectious to humans in Enterobius vermicularis.
When a parasite is in the infective stage, it can enter its host and carry out the rest of its developmental processes there. In terms of parasitology, infection is characterised as an endoparasite's invasion of a body followed by an immunological response from the host. Eggs from markets have been shown to contain a number of worm parasites. The most often reported nematode is Ascaridia galli, which lives in the intestines. Moreover, oviduct flukes (Prosthogonimus spp.), tapeworms (Cestoda), and cecal worms (Heterakis spp.) have been found in eggs. Protozoa, helminths, & ectoparasites are the three main groups of parasites that really can harm humans.
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Which chemical compound makes up the greatest percentage of a protozoan?
A) nucleic acid B) glucose C) fatty acid D) wate
Option C is Correct. The majority of a protozoan's chemical composition is composed of fatty acids. Glycerol and fatty acid molecules make up the macromolecules known as fats.
An ester bond, created by a dehydration event, connects the molecules of glycerol with fatty acids. GIARDIASIS. The protozoan parasite Giardia lamblia colonizes the upper sections of the small intestine and is also referred to as G. duodenalis (see comments on taxonomy for more information).
It is the most typical protozoan isolated from human faeces, and it is distributed all over the world. Organic, or having carbon, describes biological macromolecules. They might also include tiny amounts of oxygen, nitrogen, and phosphorus.
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