Answer:
Explanation:
Look I would help but I'm not learning that stuff yet in Middle School.
Answer: b
Explanation: you have to use both math and science in engineering
Answer: They are responsible for animal migration because the chemicals they contain cause the animals to move to a different environment.
Explanation:
I found this information from https://jeb.biologists.org/content/222/Suppl_1/jeb191890
Your answer would be <em><u>D. refrigerator coils keeping the refrigerator cold</u></em>