In eudicot stems the vascular bundles will form a cylinder that runs ________ with the long axis of the shoot
a. perpendicular
b. in conjunction
c. parallel
d. continuous
e. None of these choices.
c
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The most important aspect of agar that makes it a useful ingredient for solidifying media for bacterial culture is
A. It provides an excellent carbon and energy source for bacteria. B. Bacteria are unable to break it down so it stays solidified. C. It melts at 100oC and solidifies at temperatures below 50oC. D. It provides an excellent nitrogen source for bacteria.
The word hormone comes from the Greek word meaning
a. target. b. response. c. secretion. d. set in motion. e. internal gland.
In plants, low water availability favors the allocation of energy to the roots
Indicate whether the statement is true or false
Neutral mutations tend to accumulate in DNA at a predictable rate; like the ticks of a(n) __________, they can help researchers estimate how long ago two lineages diverged.
Fill in the blank(s) with the appropriate word(s).