The colonization of Glacier Bay, Alaska by lichen and mosses allowed the growth on the mountain avens, a(n) ____

species.



a. nitrogen-fixing
b. predator


c. keystone
d. K-selected
e. r-selected


ANSWER: e

Biology & Microbiology

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True or false: Osmoconformers tend to live in environments with variable solute concentrations

A. true B. false

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A(n) ____________________ is a large-scale community of organisms in a major ecological setting. Fill in the blank(s) with the appropriate word(s)

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The type of system depicted in Figure 44-1 is:


a. an open circulatory system.
b. a vertebrate circulatory system.
c. a closed circulatory system.
d. a lymph system.
e. an open digestive system.

Biology & Microbiology

Southern blotting is a process where ____ is transferred from a gel to a ____where a probe can be applied

a. DNA; water solution b. protein; water solution c. DNA; nitrocellulose filter d. RNA; nitrocellulose filter e. protein; nitrocellulose filter

Biology & Microbiology