True or False: many of the intermediates in the biosynthesis of chlorophyll are themselves capable of absorbing light energy
A. true
B. false
A
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A fruit that develops from a single ovary, such as a peach, in a single flower is called a(n)
a. aggregate fruit. b. accessory fruit. c. multiple fruit. d. simple fruit. e. compound fruit.
Refer to the accompanying figure. Based on the phenotypes of the third generation, the genotype of the father in the second generation must be:
a. homozygous for albinism.
b. heterozygous for hair color.
c. heterozygous for albinism.
d. X-linked.
e. dominant
Thrips are insects that feed on rose pollen. Scientists noted that the thrips population increased in the spring and decreased dramatically during the summer. The researchers hypothesized that food abundance was the limiting factor for the population. Which of the following types of data would be most useful for the scientists to collect at regular intervals on a designated test plot of rose plants?
A) Amount of sunlight (hours/day) B) Mean temperature (oC) C) Density of rose pollen produced (g/m2) D) Amount of pollen produced by each flower (g/flower)
Evolution, viewed on a small scale, as it relates to changes in a single gene or allele frequency in a population over time, is called
A. macroevolution. B. speciation. C. genetic evolution. D. phenotypic evolution. E. microevolution.