Answer:
Basically, when organisms combine stuff to make different stuff and get rid of other stuff.
Explanation:
cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water.
C, H, O, N, P, and Ca
Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus and Calcium
Answer:
It is A
since the energy source is the first thing you need to make the planet habitable, and in order for the animals to live, you need plants like trees to give air. so the cycle is Sun-Plant-Animal
The ice has less density than liquid water, so it floats on the water surface. Therefore during the winter all the lakes and rivers are frozen only at a top. Deeper layers of water are cold, but still liquid and it allows fish and other organisms to survive. Moreover, the ice cover provides temperature isolation so liquid water beneath the ice has more or less constant temperature (around 4 dgr Celsius)
