Approximately of african-americans have the sickle cell trait or are heterozygous for sickle cell anemia.

Theories basic to all of the life sciences include the germ theory of disease. theory of evolution by natural selection. o two of these answers are correct none of these answers are correct o cell theory.

Need an answer asap 45 points and brainlest to the first person to answer why do scientific theories, such as biological and chemical evolution, represent the strongest explanation of the changes observed in the fossil record. must be in sentence form how can scientific theories on evolution and the fossil record change over time? must be in sentence form

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone