Answer:
Bone
Explanation:
Even though they are made of tissue they are not primary.
Answer:
I believe it's <em>size</em>
They are the managed consumption of natural resources to prevent their depletion or the destruction of the environment.
Getting water, salt, and minerals using villi. That the villi do
not remove from the chyme—such as the fragments of
fruits and vegetables—passes on to the large intestine<span>
</span>