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katrin [286]
3 years ago
10

In some cases, a population of one species disperses throughout an area, and over time, one species evolves and becomes more. In

this example, one bird species, the founder species, becomes three. This is true for the Galapagos finches and the Hawaiian honeycreeper. Which answer BEST explains how natural selection contributes to this speciation event?
Biology
2 answers:
Sindrei [870]3 years ago
8 0

Answer:A

Explanation:i chose B and got it wrong

usa test prep

solniwko [45]3 years ago
3 0

Answer:it’s A

Explanation:

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Which of the following best describes a adaptation brought about by natural selection
PtichkaEL [24]

Answer:

I'm not sure what the answers are but

Polar bears begin to eat goose eggs as a way to survive when seals, their usual prey, are not available.

Mountain goats restrict their range to higher altitudes because of warmer low-altitude temperatures.

Snowshoe hares change their fur from white to brown to match their warm summer habitats.

Early humans learn to make tools like flint arrows and knives to help them hunt more efficiently.

if these are your options then the answer is

C) Snowshoe hares change their fur from white to brown to match their warm summer habitats.

5 0
3 years ago
Phagocytes are unable to adhere to bacteria that have external capsules concealing their membrane carbohydrates. Our immune syst
ludmilkaskok [199]

Answer:

The correct answer is c) opsonins

Explanation:

Opsonization is a process in which proteins like antibodies and complement proteins called opsonins bind to the antigens and get it recognized by the phagocyted which destroys the antigen.

Especially when bacteria is having external capsule than it becomes difficult for phagocytes to attach to the capsular surface as the recognition molecule like membrane carbohydrate of antigen is concealed by capsule.

So to encounter this, antibodies like IgG and complement proteins like C3b attaches to the antigen and get it recognized and opsonized by the phagocytes like macrophages. This opsonization causes the destruction of antigen by enzymatic lysis.

8 0
3 years ago
4 The graph below shows how the activity of an enzyme changes
choli [55]

Answer:

A

Explanation:

A. The optimum pH of the enzyme is 6.6.  - this is true. The optimum pH of the enzyme is where its activity is the highest. On the graph, this is pH 6.6 (activity at 100)

B. The optimum pH of the enzyme is 5.8.  - this is false, the activity of the enzyme peaks at 6.6 (100), at 5.8 the activity is 80

C. The enzyme's activity is greater around pH 8.0 than around  pH 5.0  - This is false, the activity at pH 5 is 50, whereas at around 8 it is 20.

D . The enzyme's activity continually increases as pH increases  from 5.0 to 9.0 - this is false. The activity drops between pH 6.6 and pH 9.

6 0
3 years ago
If a mutation is removed from a population due to either genetic drift or natural selection, it is said to be:
MA_775_DIABLO [31]

Answer:

D) extinct

Explanation:

7 0
3 years ago
Read 2 more answers
What are the basic units of a chemical element called?
Scilla [17]
Your answer is a , atoms .
8 0
2 years ago
Read 2 more answers
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