4. nitrogen gas is more abundant in our atmosphere than
oxyganl however, nitrogen needs to be converted into
different forms to be used by many organlams. bacteria ara
highly involved in thisl describe the role of (a) bacteris
fixing nitrogen as they liva symblotically with some plant
species, (b) nitrifying bacteria, and (c) denitrifying bacteria
in the nitrogen cycle."

Plzzz hurry im being timed ! humans, like other organisms, require energy for growth and repair. when cells create atp for energy, carbon dioxide is produced as a waste product. how does the body respond to this process in order to maintain homeostasis? a. the digestive and respiratory systems interact to move carbon dioxide to the lower intestine, where it is transformed into methane. b. the circulatory and digestive systems interact to move carbon dioxide to the stomach, where it to break down food. c. the nervous and urinary systems interact to move carbon dioxide to the kidneys, where it is absorbed into the bloodstream. d. the circulatory and respiratory systems interact to transport carbon dioxide to the lungs, where it is expelled from the body.

Grignard reactions are highly exothermic and are performed in ether solvent. there is a real risk of fire during this reaction. in the case that a fire should occur in your distillation apparatus, what is the best course of action? g

Which of the following systems in absorbing oxygen and releases carbon dioxide