Answer: the heart pumps blood throughout the body through arteries, vessels, and veins.
Explanation:
Answer:
d
Explanation:
they sun bathe and cant control there own temp they are cold blooded
Answer:
The early atmosphere was mainly carbon dioxide and water vapour. Water vapour condensed to form the oceans. Photosynthesis caused the amount of carbon dioxide to decrease and oxygen to increase.
Hope it helps!!!
Assuming you mean living matter
All living matter is produced by other living matter
Answer: the "compound light microscope" .
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