Question

question 21 (multiple choice worth 4 points) (01 01r lc) which of the following is most likely an observation made by a physiologist? atp is made up of adenine, ribose, and a phosphate chain. bone is a rigid connective tissue. hormones control the rates of reactions and regulate blood pressure. the nervous system is composed of neural tissue.

Explanation:

Physiologists study the functions and activities of living organisms and their parts. Hormones' role in controlling reaction - rates and regulating blood pressure is a physiological observation related to the body's regulatory functions. The other options focus more on structure (bone as connective tissue, nervous system composition) or molecular structure (ATP composition).

Answer:

Hormones control the rates of reactions and regulate blood pressure.