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blsea [12.9K]
3 years ago
13

What is the definition of biological evolution and what does it have to do with populations?

Biology
1 answer:
katrin [286]3 years ago
6 0

Answer:

Definition:

Biological evolution is the process through which the characteristics of organisms change over successive generations, by means of genetic variation and natural selection. It is most commonly defined as "changes in gene frequencies in populations."

A small change in genes could result in a mass epidemic. Such as the colinistists bringing yellow fever over to America.

Explanation:

Biological evolution refers to the cumulative changes that occur in a population over time. These changes are produced at the genetic level as organisms' genes mutate and/or recombine in different ways during reproduction and are passed on to future generations.

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What tools do field study scientists use and what tools do laboratory scientists?
pochemuha

Answer:

Explanation:

Each of these types of scientists focus on different research studies and therefore needs different tools. Field Scientists' studies mainly revolve around observations which they, therefore, need only a pen and paper, this may sometimes change when they need bigger machinery to make a certain event occur, but this machinery is dependent on the type of research. On the other hand laboratory, scientists work with different specimens within the lab and tend to use tools such as Bunsen burner, beakers, reagent bottles, petri dishes, and microscopes.

8 0
3 years ago
The nitrogen base pairs in the DNA molecule are adenine and or cytosine and .
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The nitrogenous bases Adenine form two hydrogen bonds with thymine and the cytosine form three hydrogen bonds with the guanine. Simply, A combines with T and G combines with the C. It is often called as a complementary base pairing because of each base pair bonds only with its specific complementary base partner in a DNA molecule.

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Answer:

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3 years ago
11. All of the planets in the solar system have ____________________ with the exception of Mercury and Venus. (1 point)
Snowcat [4.5K]
So here are the answers that will complete the given statements above.
11. All of the planets in the solar system have MOONS or NATURAL SATELLITES <span>with the exception of Mercury and Venus. 
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Hope these answers help.</span>
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3 years ago
Read 2 more answers
Are all frogs poisonous? someone help I will give brainliest for the right answer.​
Zolol [24]

Answer:

single "golden poison frog" harbours enough poison to kill 10 grown men, making these frogs perhaps the most poisonous animals alive. They are one of many species of toxic frogs, which are known as poison dart frogs. They are all small: the largest are no more than 6cm long, and some are just 1.5 cm. How did these tiny, beautiful creatures become so poisonous,

Explanation:

hope this helps u

4 0
3 years ago
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