Which of the following is an example of an organism maintaining homeostasis?
a. a boy riding a bike
b. a cat grooming itself
c. a bear nursing her cubs
d. a man sweating while he runs

Actinobacteria sp. are fermenting organisms (which do you use oxygen to breathe) referred to as chemoorganohetereotrophs this means they break down organic material and convert it to inorganic material. which part of the carbon cycle does this describe

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.

Describe the relationship and movement between temperature and density in a convection cell. make sure you identify the direction of travel