Which of the following groups contain vessels as their primary form of water transport?
A. lycophytes
B. ferns and horsetails
C. gymnosperms
D. angiosperms
E. mosses
D
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Use the following graph and information to answer the question below
Flycatcher birds that migrate from Africa to Europe feed their nestlings a diet that is almost exclusively moth caterpillars. The graph below shows the mean dates of arrival, bird hatching, and peak caterpillar season for the years 1980 and 2000. The shift in the peak of caterpillar season is most likely due to _____. A) pesticide use B) earlier migration returns of flycatchers C) an innate change in the biological clock of the caterpillars D) global warming E) acid precipitation in Europe
Which eye is the best at detecting motion?
a. compound eye b. single-lens eye c. ocellus d. ommatidia e. photoreceptor
Transgenic animals are valuable in the study of human diseases for which of the following reasons?
A. They can manifest the same symptoms as human diseases. B. They can be used to study the development and progress of human diseases. C. They can be used to test drugs on. D. They can be cloned and thus have identical genomes. E. All of these are reasons why transgenic animals are valuable in the study of human diseases.
Which of the following control methods measures the results of mangers' and workers' efforts instead of measuring what they do?
A. Behavior control B. Output control C. bureaucratic control D. Normative control