Diversity is considered high in the deep sea due to:
a. low dispersal of juveniles leading to speciation.
b. stability and old age of benthic environments.
c. high infaunal abundance.
d. combined low dispersal and long-term stability of the benthic environment.
D
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Thomas Bell and his colleagues showed that ______
a. island size affects beech tree populations b. beech trees are islands for bacteria c. number of bacteria species increases with tree hole volume d. large beech trees support higher bacteria populations than small beech trees e. salt marsh bacteria can live on large beech trees
Which animal makes human interleukin-2, a protein that triggers immune cells to divide and is being used as a cancer
drug?
a. cowsb. sheep c. mice d. goats e. rabbits
The process that utilizes acetyl CoA to make FADH2 and NADH among other products is ________
Fill in the blank(s) with the appropriate word(s).
For each of the following lac operon mutations, state whether transcription of ß-galactosidase will increase, decrease, or be unaffected. a. Plac- b. lacY+ c. lacI- d. lacO- e. lacA-
What will be an ideal response?