Describe how two processes of chemical weathering and one process of physical weathering may cause rocks to break up.

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.

Where can dna be found in a prokaryotic cell

How do the evolutionary chart and the video support the claim that all living things are made up of cells?