grass > grasshopper > frog > heron The organisms in the food chain given in the context would derive the majority of their energy from Select one: a. sunlight b. methane c. sulfides d. thermal sources

amber has allowed scientists to study dna that has been preserved over millions of years.

c

explanation:

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

. ph changes the ability of them he enzyme to dissolve in water.