Answer:
Our body cells require oxygen to release energy.
Explanation:
The oxygen that we take in during respiration is used to break down the food we eat to release energy from it. When we breathe in oxygen, it diffuses into blood from the lung, where it is transported by red blood cells to the entire body to be used to produce energy.
Answer:
b. A deep, narrow river divides a population of hummingbirds.
Explanation:
Hummingbirds can fly across the river. The deep and narrow river can not separate a population of hummingbirds into two patches since hummingbirds from one side of the river can fly and reach to the other side of the river.
Without any geographical isolation, hummingbirds can continue to interbreed among themselves. The continued interbreeding would not allow their reproductive isolation and thereby would prevent the allopatric speciation.
Answer:
two domains is the answer
Answer AND Explanation:
Water is involved during the first phase of photosynthesis. the radiant energy from the sun is trapped by chlorophyll and converted to chemical energy. As a molecule of water is travelling through the process of photosynthesis, the energy is used to split water molecules into oxygen and hydrogen atoms. The oxygen formed is released into the environment and hydrogen used to form glucose.
B.) "Primary Consumers" are known as hebrivores
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