Which of the following is an example of maintaining homeostasis?

a. learning
b. jumping
c. shivering
d. smiling

Photosynthesis uses co2 and cellular respiration produces co2. we call the point when the two processes are in balance--when there is no net production of co2--the compensation point. how might you limit one of the processes in order to achieve a compensation point?

How would you describe the the organisms in the second row of model 1 that are connected to the parents by a line

Common symptoms of an iron-defiency anemia include muscle weakness shortness of breath and lightheadedness why does iron deficiency causes these symptoms