Darwin’s finches, which live on the Galapagos Islands, are thought to have originally come from mainland South America and were blown off-course in a storm. The large ground finch, Geospiza magnirostris, likely evolved on an island where:

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

the most common type of reef is the fringing reef. this type of reef grows seaward directly from the shore. they form borders along the shoreline and surrounding islands.

if you add everything up correctly you should get 69 i got this because 50 plus 19 is it