The immune system protects the body from possibly harmful substances by recognizing and responding to antigens.
The first step I believe is B. Enzymes break down the protective layer of the egg cell.
<span>Vertical zonation shows that not only do different biomes occur at different latitudes, but also at different altitudes.
There are different ecological areas (biomes) at different heights on the Earth, not just different geological areas.
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Answer:
Fats and ATP are both energy molecules.
ATP is the source of energy which is directly used by each cell to carry out different functions. All cells use energy in the form of ATP. The mitochondria makes ATP by the process of cellular respiration whenever it is required by the body. ATP is not a stable molecule hence energy cannot be stored in this form.
Fats are long term energy storage molecules. Fats are stable molecules hence they can be used for long term energy storage.
Answer & Explanation:
Sun, weather. Too much sun could dry up an otherwise moist organism, as well as harm the resources that that organism need to survive.
