Respiration is controlled by sensors and effectors in the brain and carotid arteries that respond to a rise in ______ by ______ the rate of breathing
a. O2; decreasing
b. O2;increasing
c. CO2;decreasing
d. CO2;increasing
e. NO; decreasing
D; Mammals regulate the rate of breathing by sensing CO2 buildup. This triggers an increase in respiration.
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Recall that a small amount of releasing factor (from the hypothalamus) can cause the adrenal cortex to secrete a greater amount of cortisol. The action of cortisol, in turn, can result in a high final concentration of glycogen in the liver
What is this an example of? Select all correct choices. A. hormone signal denaturation B. hormone signal amplification C. hormone signal accumulation D. hormone signal degradation
Movement of large molecules into a cell is called ________.
Fill in the blank(s) with the appropriate word(s).
Why is it important that humans attempt to control their numbers and begin to identify renewable resources?
What will be an ideal response?
Alternation of generations means
A. one phase of the life cycle is diploid and the other is haploid. B. one phase of the life cycle takes place on land and the other in water. C. one phase of the life cycle is photosynthetic and the other is heterotrophic. D. one phase of the life cycle is unicellular and the other is multicellular. E. one phase of the life cycle is motile and the other is stationary.