Answer:
B
Explanation:
process of elimination. The other ones were wrong tbh. Also, in natural selection genetic variation/mutations are a HUGE FACTOR according to darwins 3 principles of evolution.
Mitochondria is the right one hope this helped you!
light is a form of energy expression, so knowing the law about energy conservation, we can conclude that the light absorbed by the dark object doesn't disappear but turned into heat, which is kept or emitted by the dark object.
So Yes,
the darker the color, the better the heat radiation is
Bone is made mostly of collagen, a protein that is woven into a flexible framework. Bone also contains calcium phosphate and calcium carbonate, minerals that add strength and harden the framework. The combination of calcium and collagen gives the bone its strength and flexibility