You can use the HWE (Hardy Weinberg Equilibrium) equations :
p + q = 1
p^2 + 2pq + q^2 = 1
If the allele combinations do not equal one after a while, evolution has occurred.
Answer:
3%
Explanation:
Substract the actual error from the final and multiply by 100
Answer:
There's good reason why vitamin D is called “the sunshine vitamin.” When your skin is exposed to sunlight, it makes vitamin D from cholesterol. The sun's ultraviolet B (UVB) rays hit cholesterol in the skin cells, providing the energy for vitamin D synthesis to occur.
Explanation:
Answer:
The chemical reaction by which plants produce complex food molecules (sugars) requires an energy input (i.e., from sunlight) to occur. In this reaction, carbon dioxide and water combine to form carbon-based organic molecules and release oxygen.
Explanation:
so basically plants create oxygen and If there were no plants on the planet we wouldn't be able to breathe.
and yes it could be changing since large quantities of trees are cut down every day in rainforests which produce large amounts of oxygen for us. hope this helps!