The male hormones are consistently released over a lifetime. that explains why a man can father a child well into his eighties (assuming he can still deliver the sperm, but there are drugs for that). a female's reproductive cycle is just that, a cycle. it begins at puberty, menarche, and ends with the release of an ova from the last follicle. describe the female reproductive cycle, the hormones involved and what each one does.

The mitochondrion functions lipid storage protein synthesis photosynthesis dna replication atp synthesis

What two fields of study provide the core information that is used to classify organisms?

This is a typical grassland food web. it is also a small picture of an important cycle on earth: the carbon cycle. describe how the carbon gets into this food web. a) bacteria and fungi, the decomposers, recycle carbon from dead organisms. b) carbon is found in the grass and is passed from one level to the next in this food web. eliminate c) all living things give off carbon dioxide as a by-product of respiration and it is released into the atmosphere. d) plants use carbon dioxide as a reactant in photosynthesis, to make usable chemical energy in the form of a sugar.