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Oksanka [162]
2 years ago
14

How do environmental factors contribute to evolution by natural selection?

Biology
1 answer:
konstantin123 [22]2 years ago
6 0
Environmental factors change the amount of genetic variation in a population.
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You place an inoculum of your bacterium on a glass slide and add a drop of hydrogen peroxide reagent. Promptly you see bubbles a
marissa [1.9K]

Answer:

The correct answer is A) Biochemical test

Explanation:

In microbiology biochemical test is used to examine the metabolic activities performed by bacteria to identify that microorganism. So in biochemical test enzymatic reaction of cell is usually investigated because there is difference in enzymatic activity of different species of bacteria.

For example, catalase test that is used to differentiate between catalase-positive and catalase-negative bacteria is an example of biochemical test. Catalase-positive bacteria have the catalase enzyme that breaks hydrogen peroxide into water and oxygen which is confirmed by bubbles that appear on glass slide.

Catalase negative bacteria do not form bubbles when they are put in hydrogen peroxide which shows that they lack catalase enzyme. So the right answer is A.

5 0
3 years ago
What is the starfish experiment?​
vitfil [10]

Answer:

When starfish were removed from their environment, the species richness of that area went down. This was because the starfish ate the mussels, and when the starfish were removed, the mussels became abundant and preyed on many of the other species.

This experiment showed that the starfish were a keystone species. A keystone species is a species that has a low biomass but a large impact on the community they are living in.  

6 0
3 years ago
What is happening in this image? How does it help illustrate the concept of natural selection?
GarryVolchara [31]

Answer:

In this image the bird is eating an insect off of a leaf that is easy to see whereas the insect on the other leaf is camouflaged and still alive. This helps illustrate the concept of natural selection because the camouflage insect is able to survive longer and therefore reproduce more.

3 0
2 years ago
10. Which type of fermentation sometimes occurs in human muscle cells
Scrat [10]
I think its acid fermentation, but I could be wrong. My class studied this a while ago.
4 0
3 years ago
Help me please
nordsb [41]

Answer:

The correct answer is option B) "computers are not as trustworthy as actual prototypes are"

Explanation:

It is false to affirm that results obtained from computer simulations towards looking for solutions of real-world problems are not as trustworthy as results obtained from actual prototypes. In most cases, computer simulations had proved to be reliable, particularly when the programers use validating arithmetic and algorithms. There are multiple companies dedicated to develop computer simulations to solve real-world problems, which are constantly used and tested in scientific investigations.

7 0
3 years ago
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