Agroup of students are walking in the park , and one of them takes a picture of a pollen grain that is being blown by the wind . that caption can the student use for this picture ?

a. gene mutation in action
b. gene flow at work
c. genetic drift as it happens
d. natural selection in progress

Why should the united state be concerned about air pollution in china?

How do cells grow and reproduce to maintain homeostasis?

How did the discovery of the rhesus factor affect society? o more patients died from having a transfusion with the wrong rhesus factor 0 new treatments during pregnancy could prevent harm to the developing child. o less donated blood could be used in the treatment of patients. the number of blood types was reduced by half