Answer:
In some primordial soup of molecules, a self-replicating RNA formed.
Explanation:
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The position of the seedlings from the Sun and the gibberling
Answer:
A body attacks a transplanted organ because it does not recognize it as being made of self cells. It knows this because the new organ has antigens, a form of proteins that coat the organ. When a body's immune system recognizes these antigens and they are not similar enough to the body's own antigen's, it attacks to try and keep itself safe and healthy.
Explanation:
The correct answer is <span>C. A tick attaches itself to the skin of a dog.
A parasitic relationship is one where one organism thrives at the expense of the other. The other organism does not gain but loses.</span>
4. The kidneys remove excess water from blood
