Early spring flowers growing in a deciduous forest are adapted for that habitat in which of the following ways?
a. They carry out their life cycles in dense shade.
b. They take advantage of the greater amount of light available before the full development of tree leaves.
c. The forest litter provides a course of carbohydrates needed for flowering.
d. Early spring flowers and trees in a deciduous forest participate in a mutualistic relationship.
e. The tree canopy shades flowering plants from harmful light intensity.
Ans: b. They take advantage of the greater amount of light available before the full development of tree leaves.
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ABO blood group determination is an example of
A. epistasis. B. incomplete dominance. C. polygenic inheritance. D. multiple alleles. E. pleiotropy.
Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?
What will be an ideal response?
Ovules develop within the ovary, which is located in the swollen lower portion of which floral organ?
A. stamen B. stigma C. anther D. filament E. pistil
An infectious disease researcher isolates the pathogen responsible for an emerging disease. The microbe is grown in the lab. A preparation of the laboratory-grown microbe is treated with a lethal dose of ionizing radiation and then tested for its
potential as a vaccine. What type of vaccine is this? A) attenuated B) subunit C) combination D) toxoid E) inactivated whole