Sickle cell anemia: point mutation & amino acid substitution, co-dominance, lethal allele. (this is an essay question and i'm lost as to what to say)

Select the true statements about eubacteria. most live as decomposers and heterotrophs. most only thrive in a narrow range of environments. certain eubacteria are responsible for food poisoning. eubacteria thrive in extreme environments.

Apuppy’s tendency to chew is inherited through which of the following? a. through learned behavior b.through genes c. through seasonal cycles d. through hibernation

How do the sperm cells get from the stigma to the ovules?