What is one way that creativity made up for limited technology for early biologists?
Scientists created unique experiments for exploring living organisms without killing them.
Scientists personally designed the custom equipment they needed for their experiments.
Scientists were able to use their imaginations rather than experiments to answer questions.
Scientists developed advanced mathematics to compensate for limited technology.

Answers

Answer 1

Answer:

A

Explanation:

Edge2020


Related Questions

Which of the following processes releases energy to be used by a cell?
A: A phosphate group is added to ATP to form ADP.
B: A phosphate group is removed from ADP to form ATP.
C: A phosphate group is added to ADP to form ATP.
D:A phosphate group is removed from ATP to form ADP.

Answers

The answer is “C.” ADP stands for adenosine diphosphate—di meaning two. When you add an extra phosphate, the di becomes tri (2 to 3). Therefore, adenosine TRIphosphate, or ATP, is released from cellular respiration.
The process that Releases energy is D.

Diffusion takes place
Group of answer choices

only through a lipid bilayer membrane.

from an area of low concentration to an area of high concentration.

from an area of high concentration to an area of low concentration.

only in liquids.

Answers

[tex]\large\underline{\bf\red{Diffusion:-}}[/tex]

It is the process of movement of substances from a region of higher concentration to a region of lower concentration .

Hence correct option is [ c ] .

More to know about topic .

Diffusion :-

Water from soil is absorbed by plants by Diffusion.Amoeba exchanges Carbon dioxide & Oxygen by the process of Diffusion.It is a form of passive transport .It does not utilises energy .

Please help me!!!!!!!!!!!

Answers

Answer:

Its option 3 hope this help with your test good luck

Describe the relationship between cell shape and function. Give an
example of cell shape influencing cell function.

Answers

Answer:The shape of a cell greatly influences its function. Each cell has a shape that best suits its functions. For example, red blood cells are round with a large surface area on top to absorb maximum oxygen. ... Nerve cells are long and have elongated terminal branches to pass messages over long distances in our body.

Explanation:

How do the circulatory and nervous systems work together to maintain homeostasis | ASAP

Answers

The cardiovascular system helps maintain homeostasis by continually supplying the central nervous system--the brain and spinal cord--with oxygen and glucose. Brain cells start dying after just one minute without oxygen. The brain is the control center for all of the body's homeostatic processes.

Answer:

The circulatory and the nervous systems work together to maintain homeostasis because the circulatory system gives your brain a lot of oxygen and glucose while your brain regulates your heart rate and blood pressure. Meanwhile, your bones are busy making new blood cells. Working together, these systems maintain  homeostasis.

Hope this helps!

surface area of 1x1x8

Answers

Answer:

What's the surface area of 1x1x8?

Explanation:

34 feet squared! Hope that helps.♡

Answer:

34 feet squared

Explanation:

Iron reacts with sulfur to form iron sulfide. If 60 grams of iron reacts with sulfur to produce 90 grams of iron sulfide, how much sulfur has been used in the chemical reaction?
A.
60 grams
B.
150 grams
C.
120 grams
D.
30 grams

Answers

Answer:

Its D. 30 grams:)

Explanation:

Rooted plants are most likely found in which aquatic zone?
a. pelagic
b. littoral
benthic
d. all of the above
C.
Please select the best answer from the choices provided

Answers

Answer:

littoral

Explanation:

An animal cell with a 30% salt solution is placed in a beaker with a 20% salt
solution. Which is the correct conclusion if the cell remains in the beaker for an
extended period of time?

Answers

Answer:

the animal cell will burst

Explanation:

If the salt solution in the animal cell is 30%, it means the water is at a 70% concentration. Outside is 20%, so the water is 80%.

Water will enter the cell. Water is at a higher concentration outside the cell (80%) or a lower concentration inside the cell (70%) by the process of osmosis.

Eventually, the animal cell will burst, because it does not have any cell wall to control the swelling of the cell that occurs as water flows in.

What would occur if a nitrogen base in the RNA strand is mis-matched? How would that affect the protein? How could that affect the organism?

Answers

Answer:

Errors during Replication. DNA replication is a highly accurate process, but mistakes can occasionally occur as when a DNA polymerase inserts a wrong base. Uncorrected mistakes may sometimes lead to serious consequences, such as cancer.

In mismatch repair, mistakes that happen during DNA replication are recognized, cut out and replaced. ... This mismatched base pair causes a point mutation, which you can think of as a typo in the DNA sequence of the new strand.

Explanation:

Incorrectly paired nucleotides cause deformities in the secondary structure of the final DNA molecule. During mismatch repair, enzymes recognize and fix these deformities by removing the incorrectly paired nucleotide and replacing it with the correct nucleotide.

Eukaryotes have solved the end-replication problem by locating highly repeated DNA sequence at the end, or telomeres, of each linear chromosome. In humans and other vertebrate organisms, the sequence of nucleotides in telomeres is TTAGGG, is repeated between 100 and 1000 times.

HELP PLEASE
Witch of the following would introduce a bias into an experiment?

A. Publishing your experimental results in a scientific journal.

B. Allowing other scientist to repeat and verify your experimental results.

C. Using a computer to record and store your data.

D. Discarding data that does not fit with your personal expectations.

Answers

Answer:

D. Discarding data that does not fit with your personal expectations.

Explanation:

One of the ways in which bias can be introduced into an experiment is by discarding data that does not fit with one's personal expectations.

Bias in an experiment is the process whereby scientists alter the results of their experiment to achieve their own expected results.

Anomalous values defined by one's expectation can make an experiment highly biased. A  scientist is supposed to be objective in their experimental approaches.

Electrons move about the nucleus of an atom in regions called

Answers

Answer:

atomic orbitals or subshells it the same name

A scientist mixes a solid and a liquid.
The mixture gets warmer and has bubbles.
What do we know from this evidence?
A) That a reaction happened because it is warm with bubbles
B) That a reaction did not happen because it is warm with bubbles
C) That A reaction happened because there was no color change
D) That A reaction did not happen because there was no color change

Answers

Answer:

A

Explanation:

Signs of chemical reaction

The answer is A

There was evidence of a reaction

Differentiate between pathogens and vectors​

Answers

Answer:

A pathogen is an agent that causes disease, such as a virus, bacterium, protozoan, or parasite. A vector is an organism, often an arthropod, that carries a pathogen to its host. So, for example, for malaria the pathogen is a protozoan called Plasmodium, and the.

Explanation:

Is it multiple choice?

What predication can you make about future levels of carbon dioxide CO2 in the atomphere

Answers

Because of all the damage that we are doing to forest and the increasing industrialization the levels of CO2 are just gonna increase making the worlds temperature rise and the poles melt

Pls brainlist

carrying capacity can vary depending on environmental conditions.

True or False

Answers

the answer is true. hope this helsp

Answer:

true

Explanation:

Two people are pushing a disabled car. One exerts a force of 200 N east, the other a force of 150 N east. What is the net force exerted on the car. ​

Answers

Answer: 350 N is the net force exerted on the car.

Carson divided 40 unripe bananas evenly among eight paper bags and sealed the bags. He poked 20 small holes in four of the bags and left the other four without holes. He kept the bags at room temperature for three days. Then, Carson opened the bags and counted the number of brown spots on each banana. He compared the average number of brown spots on bananas from bags with holes to the average number of brown spots on bananas from bags without holes.Identify the question that Carson's experiment can best answer.

Answers

Answer:

See the answer below

Explanation:

From the illustration of the experiment, the question that Carson can best answer  is that "Do bananas develop more brown spots if they are kept in bags with holes  compared to bags without holes?"

The independent variable in the experiment is the hole poked in the bags while the dependent variable is the number of brown spots on each banana. The difference between the subjects is the hole poked in the bags, hence, any difference in the number of brown spots between bananas in the bags with holes and those in the bags without holes can be attributed to the hole poked in the bags.

Therefore, the question that can be answered from the experiment is to see if poking holes in bags make bananas to develop more brown spots compared to bags without holes.

It can be more than one

Answers

Answer:

Only the matter stored in body tissues

Explanation:

Cuz the seal took some of the matter for itself :)

Which phrase describes organisms that formed index fossils?
(a) Are extinct
(b) Had soft parts
(c) Were generally large
(d) Lived in a narrow geographic area​

Answers

Answer:

A.) Are extinct

You should mark me brainliest because I think I'm cool

Options (1), (2), and (4)

Index fossils are usually defined as those fossils that were present on earth for a very short period of time. They were very broadly distributed in almost all parts of the world. They were comparatively smaller in size and comprised of hard parts that were preserved under favorable conditions which are found at many places in the present. These are extinct species. For example, trilobites and ammonites.
These index fossils are very useful because it helps in determining the age of the fossils as well as rocks by applying the radioactive dating method.
thus, the correct answers are options (1), (2), and (4).

Which effect does the sun's energy have on a comet?
A. It causes the comet to form a bright tail.
B. It causes the core of the comet to melt.
C. It causes the comet to turn toward earth.
D. It causes the comet to break apart.

Answers

Answer:

The answer is B because the sun melts the core of the comet

The sun's energy causes the comet to form a bright tail. The correct answer is A.

When a comet approaches the Sun, the Sun's energy causes various effects on the comet.

As the Sun heats up the comet, it causes the icy nucleus of the comet to vaporize and release gas and dust into space.

This process is known as outgassing. The released gas and dust form a glowing envelope called a coma around the nucleus.

Additionally, solar radiation and solar wind push the released gas and dust away from the comet, forming a glowing tail that points away from the Sun.

So, the correct option is A.

To know more about Comet, click here:

https://brainly.com/question/12443607

#SPJ6


true or false?
plz answer

Answers

Answer:

True

Explanation: This is to ez

Why are some question that scientists are asking about plant at space?

Answers

Answer:

some questions scientist are asking is if plants grow faster in space and if stars can be turned into plants.

Explanation:

I think the reason they ask these questions are because their are different molecules on earth than in space

What causes mutations during protein synthesis?

A) A wrong base becomes a permanent part of a new DNA sequence.
B) Most mutations happen spontaneously as DNA replicates itself.
C) A great many mutations occur due to chemicals in the environment.
D) Mutations do not occur during the process of protein synthesis.

Answers

Answer:

B is the correct answer i believe

what is the parts of earths atmosphere help ill give brainliest *URGENT*

Answers

troposphere, stratosphere, mesosphere, thermosphere, exosphere
The parts of earth atmosphere consists of troposphere, stratosphere,mesosphere, thermosphere , and exosphere

Sex-Related inheritance: X chromosome; Non Sex-Related inheritance​

Answers

What we already know:

All species under normal circumstances will have two sex chromosomes. X and Y, Y is known to be dominant. All females will have two X chromosomes (XX, one X will always be given by the mother), whereas males will have one Y chromosome and one X chromosome (XY, one X will always be given by the mother. The father, on the other hand, could give either an X or a Y, that all depends on what sex chromosome the father's sperm donated.)

So, how many chromosomes do a typical human have? Correct, a typical human has 32 chromosomes and only 2 of them are sex chromosomes. Now we must understand that the sex chromosome carries more than just the one code for the individual sex. That means that the gene codes for more than just the sex.

Building on that knowledge:

Sex-Related Inheritance that differs from sex, is carried on one or two of an individual's sex chromosome. Whereas Non-Sex-Related Inheritance is carried on the other thirty chromosomes that the individual also carries.

Sex-Related inherited genes that are passed via the father to male offsprings, carried on the Y chromosome, are easiest to spot in a family. All males will have this trait and no females will.

Non-sex-related inheritance can be passed from male to female and from female to male, this is sometimes harder to differentiate from genes carried on the X chromosome because the mother always gives an X chromosome.

Vocabulary:

phenotype: the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.

Convection currents can be described best by:
a. Hot air rising, cold air sinking
b. Cold water rising, hot water sinking
C. Random distribution of temperatures
d. Hot air sinking, cooler air rising

Answers

Answer:

A.Hot air rising,cold air sinking

Explanation:

Hot air rises in a confined or closed space.That is one of the reasons why firefighters have some people crawl on the flour to get out. the smoke is hot air so it rises to the ceiling of the room, while cold air stays lower.

Siphoning of wetlands in Iraq has led to
a. rising sea levels
b. drought
c. an increase in biodiversity
d. them becoming arid desert

Answers

Answer:

its D

Explanation:

them becoming arid desert. just took the test and got a 100 :)

Answer:

D because Iraq though the years became a dry sandy desert mostly made up of desert mountains to this day

Explanation:

A isn't right it'll be less of a desert but also less land, the mountains also only makes of a a bit of a quarter or more of the land

B is a possibility but wont explain how it is today nor on it's conditions

C is wrong as it's the opposite of now

A single strand of DNA contains:

Answers

Answer:

A single strand of DNA is a polymer of nucleic acids joined covalently between the phosphate group of one and the deoxyribose sugar of the next to for a “backbone” from which the nitrogenous bases stick out. In its natural state, DNA has two strands wound around each other in a double helix.

Explanation:

Cytosine and adenine

Why does the skeletal system contain both immovable and movable joints? A. Immovable joints allow my bones to move; movable joints connect my bones. B. Immovable joints connect my bones; movable joints allow my bones to move. C. Both kinds of joints allow the skeletal system to store materials. D. Both kinds of joints allow the skeletal system to protect organs.

Answers

Answer:

The correct answer is - option B. immovable joints connect my bones; movable joints allow my bones to move.

Explanation:

In the skeletal system, both immovable joints and movable joints are present and both have a distinct role in the body and skeletal system. The immovable joints are the joints that provide the stability to the bones that are connected and maintain the structure these joints also helps in protecting the organs.

Movable joints are the joints that are helpful in movement and allow bones that are connected to feely or up to a limit move.

Thus, the correct answer is - option B. immovable joints connect my bones; movable joints allow my bones to move.

Answer:

B

Explanation:

immovable joints connect bones well that a correct answer

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