Answer:
observation hypothesis experiment and conclusion
Explanation:
the experiment must be able to disprove the hypothesis in order to insure integrity
The answer is D vertebrates <span />
Answer:
sit in a quiet place and with no phones
Answer:
<em>It's either </em><em>description </em><em>or </em><em>problem and solution.</em>
Explanation:
I'm almost positive that it's description, tho. The text describes animal shelters.