Where is the respiratory control center located?
A. in the lungs
B. in the diaphragm
C. in the brain
D. in the bronchi
E. in the aorta
Answer: C
You might also like to view...
Which of the following represents the correct order of evolution of requirements for complex multicellularity in animals?
A. adhesion, cell signaling, gap junctions, bulk transport B. adhesion, gap junctions, cell signaling, bulk transport C. gap junctions, cell signaling, adhesion, bulk transport D. bulk transport, adhesion, gap junctions, cell signaling
Conifers produce
A. only seeds in cones. B. only flowers. C. both seeds and pollen in cones. D. pollen in flowers and seeds in cones. E. only pollen in cones.
Action potentials in muscle fibers cause
a. the sarcoplasmic reticulum to release ATP. b. the sarcoplasmic reticulum to release calcium. c. myosin-actin bonds to break. d. the energizing of myosin molecules. e. all of these to occur
____________________ radiation includes various forms of potentially harmful types of electromagnetic energy. Fill in the blank(s) with the appropriate word(s)