Horticulturists often use ________ and other growth regulators applied as a paste to plant cuttings to stimulate root formation.
A. ethylene
B. abscisic acid
C. auxin
D. cytokinins
Answer: C
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The high levels of toxic alkaloids in the skin of the brightly-colored poison dart frog to prevent predation is an example of _______.
a. mimicry b. a mechanical defense c. a chemical defense d. camouflage
The human brain is fully functional by the end of the ____
a. first trimester b. third month c. third trimester d. ninth month e. seventh month
In which of these landscape patches are species most subject to the edge effect? Explain your answer.
What will be an ideal response?
All of the following are correct about iodophors, except
A. this formulation allows a quick release of free iodine. B. this formulation increases its penetration. C. they are complexes of iodine and a neutral polymer. D. a common iodophor is Betadine. E. it is less prone to staining or irritating tissue.