Research and identify which plants on earth are the most abundant in biomass and the ecosystem(s) in which these plants can be found. Discuss how varying carbon dioxide levels can affect the growth of plants, thus affecting the levels of biomass.

What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.

How does the nervous system affect the excretory system?

If the nucleus of a cell was removed the cell wouldn’t be able to make proteins because