It is the repiratory and the circulatory
Answer:
<h2>Positive Reinforcement and Operant Conditioning </h2>
Explanation:
<h3>thanks me later </h3>
I think the correct answer from the choices listed above is option A. The statement that describe the structure of each type of macromolecule would be that the <span>building blocks of carbohydrates are sugars that are made of carbon, hydrogen, and oxygen. Hope this answers the question. Have a nice day.</span>
They cannot hibernate in winter
