Describe the similarities and differences (compare and contrast) of the circulatory system of plants and animals will mark brainiest

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

How can you approximate the number of calories required to keep you in energy balance?

Select the correct answer. which term do biologists use to describe the average number of individuals of a species per unit area? a. carrying capacity b. population density c. minimal viable population d. survivability curve