If DNA code consists of only four nitrogenous bases, how can it produce so much variety among organisms of the same species?

What’s this animal (picture is tagged) and where is it most likely to live, rainforest or desert?

The influenza virus cause the flu, but not other diseases. why?

Plz ! having a smooth seeds is the dominant trait. having wrinkled seeds is a recessive trait. the offspring of two plants with smooth seeds, a. must have smooth seeds. b. may have smooth or wrinkled seeds. c. must have wrinkled seeds. d. have a 25% change of having smooth seeds.