Primary consumers are the first to receive energy from a plant receive energy directly from the sun make their own food using photosynthesis break down dead matter into chemical nutrients

What is a gene ? a) a section of a protein that codes for dna. b) the alternate version of a trait. c) the visible trait in the f1 generation. d) a section of dna that codes for a specific trait .

Identify the structure in organisms that do not have kidneys that is adapted to regulate water balance

Adistinctive characteristic of mammals that is not observed in other vertebrates is