What is a common toxin produced by human body cells when they respirate without oxygen (anaerobically) as in an emergency A) they produce their own oxygen

B) alcohol

C) lots of ATP

D) lactic acid

E) glucose

Liquid water turns into water vapor at which step in the water cycle? a. precipitation o b. water run off c. evaporation d. condensation

Anita thinks that she has heterozygous alleles for red hair.if she is correct, which of these diagrams best illustrates anitas alleles pf red hair

The intervention of extraterrestrials has been used to explain the bermuda triangle, a region of the atlantic ocean where ships and planes are frequently lost, leaving no evidence behind. how would this explanation best be characterized?