Evolution and Biological Adaptions worksheet here throwing me way off. worth 20 points to whoever helps

Asquare kilometer of forest has 200 deer. what is the term that is used to describe this number?

Which best explains why there are 64 possible codons in the genetic code and only 20 amino acids that make protiens of living organisms on earth

Sweating and breathing is an example of differentiation specialization maintaining homeostasis metabolism