Answer: An exoskeleton
Explanation:
Just did the question and got it right.
Its <span>adaptive radiation. I am hundred precent sure... </span>
Could you possibly tell me what exactly you need help with? As my computer already has viruses, I am surely not going to click on any of those. Sorry!
Changing environments and competition for survival are the answer so D is the correct answer
<span>The </span><span>unit that describes the mass of an atom or molecule </span>is 1/12 of the mass of a carbon atom, with the mass number of 12.
Hope this helps,
UnicornFudge aka Nadia