what are mutualism, commensalism, parasitism, and predator-prey?

Explanation:

Mutualism - two organisms that benefit from each other

Commensalism - one organism benefits, one isn't harmed

Parasitism - a parasite benefits from and harms a host

Predator-Prey - a predator (animal that kills another for food) kills a prey (the animal it likes to eat) and eats it

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

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