A quadrilateral has 4 sides and each angle is 90 degrees therefore the sum would be 360 degrees
Answer:D
Explanation:
Its attached to ribosomes and is involved in protein and lipid synthesis.
This is an assumption based off definition
They begin the process of modifying the environment so that the next organism can come in since they are one of the first organisms to arrive in an area.
Somatic cells contain two full sets of chromosomes ( making them diploid cells). Gametes are most often haploid cells, meaning they ONLY have one full set of chromosomes, so sense it has 20 and gametes cells only have one it has to be a somatic cell :)