In mitochondria, during cellular respiration
Answer:
Bones are organs composed of hard living tissue providing structural support to the body – it's scaffolding. It is a hard matrix of calcium salts deposited around protein fibers. Minerals make bone rigid and proteins (collagen) provide strength and elasticity. ... The outer layer of bone is called Cortical bone.
The answer's D. Cretaceous.
Answer:
None of these options is correct.
Explanation:
As in first option animal show herbivorous behaviour by eatin plant as well as in second option plant is toxic for animal .
while symbiosis is a process in which two animals stay together to harm each other or to help each other or for some other conditions but in these options there is no such situation here.
Hibernation is when an animal hides away during the winter. They stock up with food before hand and sleep all winter. This is a survival tactic.