2points
how do phosphates influence biotic factors?
a. they cause scales y form in water.
o
o
o
b. they increase the salinity of water.
c. they are important for plant growth.
o
d. they buffer cells from extremes of ph.
su

b. the carbon cycle ensures living things have a source of hydrogen

every el niño cycle is different. every year.

the correct answer is d

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