Answer:
2. Can carry less oxygen and more carbon dioxide.
Explanation:
Sickle cell anemia damages and inhibits hemoglobin in red blood cells reducing how much oxygen they can carry.
A. Shellfish will disappear first if an estuary was destroyed.
The right answer is B.
The answer B is the only proposition which specified at which stage the event must occur, in fact, the meiosis.
Meiosis is a characteristic division of reproductive cells that can generate gametes to form new species (desendence). So if a mutation occurs at this time (such as recombinations) it will inevitably be inherited.
The patient has Oddly shaped corneas, so the answer is D
