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ale4655 [162]
3 years ago
5

Alleles are different versions of:

Biology
1 answer:
eimsori [14]3 years ago
7 0

Answer:

Genes

Explanation:

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Many songbirds breed in North America in the spring and summer and then migrate to Central and South America in the fall. They s
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Answer:

C.The two species do not breed in the same area, so they are reproductively isolated by allopatry.

Explanation:

Allopatry means that these two species are geographically separated during the breeding season, so they are reproductively isolated.

Allopatric speciation is a form of speciation (creation of new species) that occurs as a result of geographic isolation. This means that a part of population becomes physically separated from the initial main population. There is no gene flow between these two populations and as a result the two populations  reach a high level  of genetic divergence. They can no longer interbreed which means they become two different species (speciation).

7 0
3 years ago
Which of the following best defines gene flow?
Tanzania [10]

Answer:

The answer is B

Any movement of genes from one population to another

Explanation:

7 0
2 years ago
Which option identifies ways that people positively affect Earths resources
matrenka [14]

Answer:

Halting the use of resources is impractical. Increasing the mining efforts would lead to further depletion of resources. Hence, the correct options are: build dams, use cars that emit fewer harmful gases, and halt the runoff of factory waste into rivers and streams which would positively affect Earth's resources.

Explanation:

6 0
4 years ago
What would you expect to happen if a transfusion recipient had blood type o and a donor had blood type ab?
NNADVOKAT [17]

If a person with blood group type O received blood transfusion from type Ab it will lead to major hemolytic transfusion reaction.  

<h3>What is Blood Transfusion?</h3>

Intravenously putting blood components into a person's circulation is known as a blood transfusion. For a number of medical disorders, transfusions are performed to replenish lost blood components. The blood's components, such as red blood cells, white blood cells, plasma, clotting factors, and platelets, are now frequently used in transfusions instead of the whole blood that was used in earlier times.

Hemoglobin is a component of red blood cells (RBC), which carry oxygen to the body's cells. Although they are not frequently utilized in transfusions, white blood cells are an essential component of the immune system and help the body fight illnesses. The "yellowish" liquid component of blood called plasma serves as a lubricant and is made up of essential nutrients and proteins for the body's overall health.

Learn more about Blood with the help of the given link:

brainly.com/question/24389046

#SPJ4

5 0
2 years ago
Explain why scientists might use models to represent earths processes
Scilla [17]

If i am right can i plz get brainiest?

Answer:

We use models in order to represent Earth's processes on a smaller scale so that it is easier to study them. ... Changes in any part of the Earth's system affects all other spheres.

6 0
3 years ago
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