Answer:
here.
Explanation:
Due to the prevalence of malaria in Africa, the allele for sickle cell anemia (HbS) provides a selective advantage. That's why it remains in the population.
A normal African person (HbAHbA), with normal haemoglobin, will not die of anemia, but will die of malaria.
An African person with sickle cell anemia (HbSHbS), with abnormal haemoglobin, will die of anemia.
A heterozygous African person (HbAHbS), with half of his red blood cells (RBCs) being normal and the other half being sickle-shaped, will neither die from anemia, nor malaria since the plasmodium will be incapable of completing its life cycle in the abnormal RBCs.
Thus heterozygous African people will grow, reproduce and pass on the HbS allele to the next generations.
An example of a conflict is that Beverly is going to make Millicent's challenge extra tough: she seems to enjoy treating people badly.
<h3>What is a conflict?</h3>
A conflict simply refers to any form of disagreement, misunderstanding, or struggle that arises between two (2) or more parties, especially due to any of the following reasons;
Some examples of a conflict with what it tells about the character include the following:
- Beverly is going to make Millicent's challenge extra tough: she seems to enjoy treating people badly.
- Tracy is rejected by the sorority because of the way she appears: she doesn't look and act like the people who are popular.
- Millicent is unwilling to abandon her old friend Tracy: she thinks being a good friend is more important than being popular.
- Millicent is starting to question being in a group: she takes time to think things though carefully.
Read more on conflict here: brainly.com/question/24769299
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It is D. <span>chloroplast.</span>
Hello!
To solve this problem you need to use the following equation for heat transfer to calculate the heat added (Q) and substitute in this equation the values for specific heat (c), mass (m) and temperature difference (ΔT). The following equation describes the heat needed to raise the temperature of a given object:
:
So, to heat the cafeteria fork made of iron with a mass of 20 grams from 25 °C to 75°C, you'll need
121 cal of heat energy.
