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Fed [463]
2 years ago
6

If a population of bacteria were all exactly the same, could the process of natural selection act on that population

Biology
1 answer:
stira [4]2 years ago
7 0

Answer:

No

Explanation:

Natural selection acts on existing genetic variation in a population. If there is a mutation that makes the bacteria more fit, then it is more likely to survive and divide to pass its mutation on to daughter cells. Eventually, this variation will become more common in the population. This is natural selection in action.

Examples of mutations that could make the bacteria more fit are if it has antibiotic resistance, the ability to use a new substance as a food source, or is more able to grow at a range of different temperatures.

If no variation exists, then there is no genetic reason one bacterium is fitter than other, so no natural selection will take place.

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A doctor prescribes a blood thinner to a patient with high blood pressure. What
OLga [1]

Answer:

The patient will have increased blood flow and decreased blood viscosity.

Explanation:

Thinning blood makes it, for lack of better term, thinner. This means it must have a lower viscosity. (For examples of viscosity, think of pouring out a glass of water versus a glass of maple syrup. The syrup has a much higher viscosity, and will take longer.)

As demonstrated in the above example, liquids with lower viscosity flow faster. This means the patient's blood flow will increase, as it will be easier for the blood to move through capillaries and the heart won't have to push as hard to move the blood through the body.

These results correspond with answer B or D, which, at the time of this answer, are identical. Whichever answer states increased blood flow and decreased viscosity is correct.

5 0
2 years ago
Physical or mental injuries caused by a crime are known as what?
diamong [38]
It would be most likely Harm
4 0
3 years ago
Read 2 more answers
Look at this food chain. What would happen if the<br> salmon were overharvested?
timama [110]

The salmon is a key player in the food web whose removal may cause an imbalance in the whole ecosystem.

<h3>What is a food web?</h3>

A food web is a graphical diagram representing all connections between organisms in a given ecosystem.

Salmon represent the food for different types of animals in a food web, thereby their removal may cause serious harm to the balance of the ecosystem.

Salmon fish is a tertiary consumer because they eat herring which in turn eat zooplankton that eats phytoplankton.

Learn more about food webs here:

brainly.com/question/2179

7 0
2 years ago
Which statement is mostly likely to apply to a cell that has DNA within it cytoplasm
klemol [59]

It performs all functions for the organism.

Hope this helps!

4 0
3 years ago
Heeeeeeeeeeeeeeeeeeeeeeeelp cuz due right nowwwww
DiKsa [7]

Answer:

A

Explanation:

The mountains will increase their elevation over time

Hope this helps :D Have a great day :3

8 0
3 years ago
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