Which of the following statements about change in ecosystems is true? A) Ecosystems experience change through human activity only. B) Ecosystems experience change through natural events only. C) Ecosystems experience no change. D) Ecosystems experience change through human activity and natural events. E) Ecosystems are neither affected by human activity nor natural events.

yes? sounds right, but you didn’t ask a question.

idk why hjggjhjkhj

the answer would be..

b. sucking

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