Which of the following elements is considered an essential micronutrient for plants?
a. zinc
b. potassium
c. hydrogen
d. arsenic
e. platinum
A
Biology & Microbiology
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The last case of naturally contracted smallpox occurred in
A. 1900. B. 1950. C. 1965. D. 1977. E. 1989.
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One method plants use to obtain phosphorus when it is in limited supply is:
A. by roots adhering to soil particles. B. by roots growing deeper in the ground. C. by roots associating with certain fungi. D. by roots using passive uptake methods. E. by roots binding the phosphorus.
Biology & Microbiology
How do bioluminescent animals deal with light?
a. They absorb light from the environment. b. They reflect light to the environment. c. They produce their own light. d. They transmit light form the environment.
Biology & Microbiology
Mutations produce new alleles that may
What will be an ideal response?
Biology & Microbiology