Which statement describes the relationship between breathing and cellular respiration in animals? A
Carbon dioxide is inhaled and is a product of cellular respiration.
B
Carbon dioxide is exhaled and is a product of cellular respiration.
C
Carbon dioxide is exhaled and is a reactant of cellular respiration.
D
Cellular respiration and breathing are the same processes.

B. Carbon dioxide is exhaled and is a product of cellular respiration.

Explanation:

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hormones in blood stream

image: dtc.ucsf.edu

endocrine glands secrete hormones into the blood stream near them; the hormones then travel in our bloodstream until it reaches its destination, called a target cell, in distance parts of the body. in the target tissue, hormones lock onto the target’s plasma membrane, called the receptor site.