I think it is a petrified fossil but you didn't give any choices
Answer:
We have two sets of chromosomes because we're diploid organisms: the most obvious function of this is that two parents can mix and match their genes in (figurative) hopes of getting some optimum combination in at least some of their offspring.
Explanation: Parents had the smash and their genes were passed on.
Graphs that are clearly labeled are much less likely to be misread or misinterpreted.
The muscles are cardiac , smooth , skeletal . the muscles are not under the voluntary control is cardiac muscle cells heart.