Astudent conducts an experiment to determine how the amount of water given to a plant affects its growth.
what is the independent variable for this experiment?
a.
the amount of water
b.
the height of the plant
c.
the amount of sunlight
d.
the amount of soil

Which statement describes an endocrine function rather than an exocrine function? a. salivary glands release saliva into the mouth. b. sweat glands release sweat onto the skin c. the pineal gland releases melatonin into the blood. d. esophageal glands release mucus into the esophagus.

How can you tell the difference between rough er from smooth er?

Which of the following is an eon in the time scale? phanerozoic proterozoic archean all of the above