The process in which organisms maintain a stable internal environment while living in a changing environment is called
A osmosis
B. equilibrium
c. transport
D. homeostasis

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

Match the pollutants. 1. a chlorofluorocarbon smoke 2. a biodegradable organophosphate insecticide freon 3. particle pollution paint 4. hazardous waste monoxide 5. carbon is completely burned malathion 6. carbon is incompletely burned dioxide

The ultimate purpose of respiration: a. inhale 02 and exhale co2 b. place oxygen in the lungs c. place oxygen in the blood d. deliver oxygen to every blood cell