Answer:
There is no mixing of oxygen-rich and oxygen-poor blood.
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The right atrium and right ventricle of the human heart pump oxygen-poor blood to the lungs and the left atrium receives oxygen-rich blood. They never mix.
Answer: B, C
Explanation: Scientists use radiometric dating of meteorites and analyze the impact craters on planetary body surfaces to learn about the age of the solar system and its planetary bodies.
Answer:
Red blood cells (RBC)
Answer:
If the moon has grown to twice its size, the gravitational force of the Earth on the Moon would be twice as much
Explanation:
The force of gravity between two objects is doubled if the mass of one of the objects is doubled.
If the moon has grown to twice its size, the gravitational force of the Earth on the Moon would be twice as much, since the gravitational force is proportional to the masses of both the Earth and the Moon.
Their would be alot of mutations in genes. Also, we wouldn't be able to function properly.
