Answer:
The prefix "echin-" means D. The prefix "exo" means outside/external.
Explanation:
Answer:
Its b and the other is c ur welcome and its my first time
Explanation:
Because their bodies tell them that they need more oxygen and so breathe faster, and try and get the oxygen their body requires and depends on.
Hey
part 1
<span>If it released heat energy, it would be A. Its not B because it is absorbing heat. Water and Salt have nothing to do with heat, so we can cross those off too
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part 2
<span>It is a compound because compounds make all types of matter.</span>
I believe it would be the Circulatory system. let me know if that helped you at all.