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AysviL [449]
3 years ago
15

(Please help!)

Biology
1 answer:
victus00 [196]3 years ago
5 0
The answer is d. Fossil b belongs to the same period as the trilobite
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Compare the normal allele for hemoglobin with the sickle cell allele. How does this difference affect the person’s red blood cel
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Sickle cell anemia is an inherited condition in which there aren't enough healthy red blood cells to carry oxygen through an individual's body. The red blood cells of a healthy individual are flexible and round, and they move through blood vessels with no problem, transporting oxygen successfully. However, a person with sickle cell anemia has rigid, sticky red blood shaped like sickles or crescent moons. These cells often get stuck in small blood vessels, which can slow or block blood flow and oxygen delivery to different parts of the body.

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