About how many gibberellins have been identified in plants?
A) one
B) five
C) over one hundred
D) thousands
Answer: C
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The specific region of antigen to which an antibody can bind (via its hypervariable regions) is called a(n) ____
Fill in the blank with the appropriate word.
During secondary growth of a plant, ____ gives rise to wood and ____ gives rise to periderm
a. vascular cambium; cork cambium b. cork cambium; apical meristem c. cork cambium; vascular cambium d. lateral meristem; apical meristem e. vascular cambium; apical meristem
Which would create a more acute dietary shortage for human beings: the loss of monocot crops or the loss of dicot
crops? What will be an ideal response?
Proximity of capillaries to tissue cells is crucial
because a. bulk flow operates to move protein-free plasma through clefts between endothelial cells. b. red cells have to squeeze single file through capillaries. c. some proteins exit capillaries by endocytosis and exocytosis. d. this is where nutrient and waste exchange occur. e. all of these are true.