The growth-promoting substance that promotes stem elongation and bending toward light is produced primarily in
____.
a. root tips, traveling to the stem in the xylem
b. the center of the stem region where elongation or bending occurs
c. flowers and flower buds
d. the shoot tip
e. root tips, traveling to the stem in the phloem
ANSWER: d
You might also like to view...
Hair cells of the inner ear begin to show damage when exposed to sound louder than ____
a. 20-30 decibels b. 40-50 decibels c. 55-65 decibels d. 75-85 decibels e. 100 decibels
The breakdown of glucose to pyruvate by a cell is an example of a(n) ________ reaction.
A) anabolic B) aerobic C) catabolic D) amphibolic E) synthesis
B cells differentiate into plasma cells, which produce antibodies
Indicate whether the statement is true or false.
The thick liquid food that enters the small intestine from the stomach is called _____.
Fill in the blank(s) with the appropriate word(s).