What do all organisms need? check all that apply.
multiple cells
air
blood
water
food
a place to live

air, water, food , a place to live

Explanation:

The living beings are composed of multiple cells, blood and water. They require certain necessities to survive and reproduce. The air is necessary for respiration. Water is necessary for fulfilling the thirst and maintaining the balance of fluid in the body. Food is necessary as it provides energy to do various biological functions. A place to live is necessary as it is the place where the living being rests, eat food and does other important activities.    

Just for people who still need the answer, it's b,d,e, and f

Explanation:

b. air

d.water

e. food

f. a place to live

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.