Osteoporosis may occur when the activity of ________ exceeds the activity of ________
A) osteoblasts; osteoclasts B) osteocytes; osteoclasts
C) osteoclasts; osteocytes D) osteoclasts; osteoblasts
D
You might also like to view...
Amphibians often use ____ as a respiratory surface
a. skin b. a tracheal system c. internal gills d. external gills e. scales
What is the function of the gallbladder?
a. production of gastric fluids b. production of digestive enzymes c. storage of bile d. production of bile
If the ciliary muscle of the eye is damaged, then
a. color vision will be lost. b. the amount of light entering the eye cannot be regulated. c. proper focusing will be impossible. d. only peripheral vision is available. e. "night blindness" will become more evident.
Examination of a phenotype can always determine the genotype of an organism
__________________ Indicate whether the statement is true or false.