Answer:
a
Explanation:
called Pangaea (meaning "all lands"), and over time they have drifted apart into their current distribution. He believed that Pangaea was intact until the late Carboniferous period, about 300 million years ago, when it began to break up and drift apart.
<span>Lithosphere, I know this because I got it right on usatestprep</span>
Answer and Explanation: The excretory system helps the respiratory system by getting rid of carbon dioxide. The respiratory system helps the excretory system by getting rid of CO2 from the body. They both need each other and if one or the other did not exist, we might've not been able to survive. Tis demonstrates how vital they are for the human body.
Yes, because vaccines help prevent diseases whereas antibiotics help cure them. (it’s better to prevent)
Answer:
C or D
Explanation:
but idk, i only know that eukaryas have membranes around nucleus and the other one doesn't
