Introduction of a single exotic predator is most likely to disrupt ecosystem function if the introduced species is a __________ predator.
A) large
B) vertebrate
C) invertebrate
D) keystone
Ans: D) keystone
You might also like to view...
Two different species are crossed and the second generation (F2) illustrates reduced fitness. This is an example of
____.
a. behavioral isolation b. gametic isolation c. hybrid breakdown d. crossing over e. hybrid sterility
Blood transports
A. nutrients, respiratory gases, and waste products. B. chemical messengers. C. heat. D. All answers are true.
Which of the following is an example of a metabolic activity that could be used to measure microbial growth?
A) standard plate count B) glucose consumption C) direct microscopic count D) turbidity E) most probable number (MPN)
A microbiologist is testing the drinking water for a municipality. What would be the best method for testing the purified water?
A. Measurement of microbial mass B. Direct microscopic count C. Membrane filtration D. Viable plate count