Answer:
Spores are used by groups of ancient plants and fungi in one stage of their reproduction. ... Spores grow into intermediate plants called gametophytes. Neither of these groups of plants produces flowers. Pollen is used by flowering plants to fertilize seeds.
Explanation:
Also the alimentary canal or digestive tract
B) Embryonic stem cell research requires the use of human embryos. Its an unethical dilemma.
The answer is: Cellular respiration is important because it provides the energy for living organisms to perform all of the other necessary functions to maintain life.
