Answer
HBA HBs
Explanation:
In some parts of Africa, up to 20% of the population are carriers of the sickle cell gene. This suggests that the trait must have a survival value. The carriers of the trait have a much lower susceptibility to malaria than normal individuals. This is because the malaria parasite survives very poorly in sickled red blood cells.
If you are talking about Alfred Wegener, then his Hypothesis was Continental Drift, a Theory that suggested that all the continents were once one large supercontinent, named Pangaea, But drifted apart from each other over a long period of time.
B. More drastic change than a point mutation
Answer:
One thing missing would be the units of the rates and measurments
The independent variable is the light intensity and the dependent is the rate of photosynthesis
Explanation:
Answer:
a.
Explanation:
pathogens may enter the body and cause illness.
