I think is D that what i think
The xylem is made from dead, hollow cells.
<span>
Tracheids and vessel elements are the main components of xylem witch have a function to transport water. Those are elongated dead cells at maturity (without protoplast) with a thick, strengthened cellulose cell wall and a hollow lumen. Even though they are dead they still maintain a function, because are being protected by surrounding living cells.</span>
3) The abillity of some gorillas to use sign lanauge
That is an acquired trait which they learned. They werent born know it.
Hope this helps
<em><u>Liesel3327</u></em>
Pretty sure its d... hope this helps
Answer:
How far down the layer is
Explanation:
yeah
