(blank) occurs due to a genetic mutation in the hemoglobin gene resulting in poor oxygen supply. the patient requires frequent blood transfusions

Astudent drew the following flowchart to show the movement of nutrients. soil → roots → plants →? where does nitrogen go next? a. directly into nearby animals as nutrition b. directly into aquifers through condensation c. directly into the air through evaporation d. directly into nearby plants during fixation

Variety of living organisms; includes genetic, species, and ecological types.

Scientists discover two populations of mice on either side of a major river. the two populations have almost identical genes but the mice from one side cannot breed with mice from the other. this is most likely because