Why do chromosomes in body cells exist in pairs? A.
because chromosomes from one parent must remain separate from those of the other
B.
because each chromosome is duplicated when an organism is born
C.
because each parent contributes one of each type of chromosome to its offspring
D.
because chromosomes group together to fit into the small space of a cell

the answer is: reproductively

i think i spelled it wrong lol

anyways hope i

-lavira: )

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u