What hallmark of angiosperms is found in some gymnosperms and why does it not result in this
gymnosperm group giving rise to angiosperms?
What will be an ideal response?
At least two species of gnetophytes have a two-step process of fertilization, which is a hallmark of
angiosperm fertilization. However, there is no molecular evidence for a link between Gnetophyta and
angiosperms.
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Which type of reproductive isolation operates to keep the mosquitofish isolated, even when fish from different ponds are reunited in the same body of water?
A) behavioral isolation B) habitat isolation C) temporal isolation D) mechanical isolation E) gametic isolation
Many species of birds form large flocks. What dispersion pattern describes this behavior?
A. random B. uniform C. rapid D. social E. clumped
Using gene therapy to correct ornithine transcarbamylase deficiency (OTC) would prevent buildup of ________ in the blood.
A) cholesterol B) RNA C) adenosine deaminase D) ammonia
A dance that recruits other bees into foraging
more than 100 meters distant from the hive is indicated by a. A. b. B. c. C. d. D. e. All of these except A.