The answer is D.) all of the above
They are called lymphocytes, which are a type of white blood cell. I hope this helps! :)
Do not leave a baby or young child alone in a room with stairs.
Explanation:
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B . Push blood from the vertices to the arteries , and ventricles push blood from the veins to the atria
Answer:
The images we see are made up of light reflected from the objects we look at. This light goes through the eye through the cornea, which is kind of like a window
