Answer:
Natural selection occurs if four conditions are met: reproduction, heredity, variation in physical characteristics and variation in number of offspring per individual.
Explanation:
Answer:
raidiant energy is the energy of electromagnetic waves
4 because if you have a infection it causes you not to breath properly
Natural common disorder function seeds
The results will most likely be valid because the scientists kept getting the same results after REPEATED experiments. If they just conducted one experiment then they would not have been sure if what happened was a fluke or if another thing would happen after another experiment.<span />
