Why is the SLA higher under shade for both shade-tolerant and shade-intolerant plants?
A) Shade intolerant plants have larger surface areas.
B) Leaves tend to be thicker in the shade.
C) Leaves tend to have larger surface areas to absorb more sunlight.
D) Shade tolerant plants have larger surface areas.
C
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DNA vaccines work by
A. stimulating production of antibodies against DNA. B. stimulating interferon production. C. inactivating the host DNA. D. having the cell use the introduced DNA to make the microbial protein antigen.
Multiple sclerosis is a nervous system disorder that arises when white blood cells mistakenly attack and destroy:
a. neurons b. ganglia c. myelin d. neuroglial cells e. nerves
Which drug, if taken during pregnancy, results in infants with severely deformed arms and legs?
a. tetracycline b. thalidomide c. streptomycin d. salicylic acid e. codeine
One strategy for reducing the need for application of fertilizer is to plant legumes such as alfalfa and non-legume plants such as corn in alternating years. This allows:
What will be an ideal response?