The answer is C) chromosome :)
the answer is C or the third one down, Layer A is the outer core because its made of iron and nickel
I think the answer should be 16 because 1×2^4=16
Answer:
According to the current fossil record, scientists believe that the life on earth began about 3.5 billion years ago.
Answer:
To move substances against a concentration or electrochemical gradient, a cell must use energy. Active transport mechanisms do just this, expending energy (often in the form of ATP) to maintain the right concentrations of ions and molecules in living cells.
Explanation:
