Answer: <em>species diversity
</em>
<em>
</em>
<em>ecosystem diversity
</em>
<em>
</em>
<em>genetic diversity</em>
The Answer Would Be #2 Polyp
The tissues found within the vein if I must say are xylem and phloem. Glad I can help.
The mesosphere is the coldest layer of the atmosphere.
Hope that helped you.
Explanation:
If water did not expand when freezing, then it would be denser than liquid water when it froze; therefore it would sink and fill lakes or the ocean from bottom to top. Once the oceans filled with ice, life there would not be possible.