Deficiencies of which two minerals may result in muscular weakness?
a. iron and copper
b. iron and manganese
c. iodine and iron
d. phosphorus and calcium
e. phosphorus and potassium
E
You might also like to view...
Striated muscle has light and dark bands. The light bands are called ________, whereas the dark bands are called ________.
A) Z lines; M lines B) H zones; M zones C) A bands; I bands D) I bands; A bands E) M lines; A bands
Answer the following statement(s) true (T) or false (F)
1. An application of too much fertilizer will negatively affect the movement of materials in the phloem. 2. A decrease in the availability of ATP in a root cell could decrease the water potential of the cell. 3. If a mutation decreased the radius of a xylem vessel threefold, there would be an 81-fold increase in the volume of liquid moving through the vessel. 4. An increase in root pressure will result in the rapid release of abscisic acid (ABA) and the subsequent opening of the stomata. 5. If the proton pumps of guard cell were damaged, transpiration would decrease.
Competitive exclusion is based on the idea that:
a. one species will voluntarily allow the other to survive b. no two species can completely occupy the same niche c. the larger species will always dominate the smaller d. competition is overrated as a factor in species survival e. two species can live together if they share the same niche but use it at different times
Which of the following is NOT found in an arteriole?
a. elastic layer b. basement membrane c. smooth muscle d. valve e. endothelium