The process of making changes in the dna code of a living organism is called
a. selective breeding.
c. inbreeding.
b. genetic engineering.
d. hybridization

Barbara is converting 78°f to degrees celsius. first, she subtracts 32 from 78. what is the next step?

Plz ! a frog has a genetic mutation in skin cells that causes part of its skin to turn orange the frog will not pass this genetic mutation onto its offspring because, a. the offspring will inherit skin cells from the other parent. b. mutated skin cells cannot divide and produce daughter skin cells. c. skin cells do not contribute genetic material to sex cells. d. parents do not contribute genetic material to their offspring.

What were the main components of earth’s earliest atmosphere? oxygen and ammonia hydrogen and helium oxygen and nitrogen hydrogen and nitrogen