What is the causative agent of Farmer's Lung and Bagossis?
A. Actinomyces israelii
B. Nocardia
C. Mycobacterium tuberculosis
D. Bacillus anthracis
E. Clostridium perfringens
Answer: A. Actinomyces israelii
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Which of the following statements regarding xylem vessels in angiosperm trees is not true?
A. Vessels allow angiosperms to have higher rates of water flow through stems. B. Angiosperms are able to fix more CO2 and have higher growth rates due to vessels. C. Vessels are rigid and strong and do not require additional support cells. D. Angiosperm wood structure has a high degree of diversity due to the presence of several distinct cell types. E. Angiosperms primarily use vessels to transport water and minerals.
The largest reservoir of water is the ____
a. oceans b. polar ice and glaciers c. groundwater d. lakes and rivers e. atmosphere
What is an example of a +/+ interaction?
A. parasitism B. ammensalism C. competition D. mutualism E. commensalism
A zoo is hand-rearing an endangered species of songbird. What is the best approach to help prepare the males to attract mates?
A. Expose the males to each other during the critical period to initiate development of song circuits during the critical period. B. Expose the males to female pheromones from their species to initiate development of song circuits during the critical period. C. Expose the males to a variety of birdsongs during the critical period. D. Expose the males to a mentor male bird singing their species' song during the critical period.