I am so sorry if this is too late but your answer is in the explanation.
Explanation:
Weakness and nausea are the responses of vomiting and fever. Because people tend to feel weak and uneasy after vomiting. Body temperature also increases resulting headache and body cramp.
The stimulus that causes he response is coldness and weakness. And the purpose of the response of a fever is that it raises the body temperatures so that the bacteria and germs that causes the fever get kill or destroy that are sensitive to temperature changes.
Spirogyra<span> is a genus of filamentous charophyte green algae of the order Zygnematales, named for the helical or spiral arrangement of the chloroplasts that is diagnostic of the genus.