Which of the following caused massive declines in U.S. commercial fish populations?
A) recreational anglers
B) freak weather events in the 1980s
C) huge factory trawlers
D) foreign commercial fisherman
C
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The areas that have received the greatest attention in genetically modified plants are _____
A) improved product quality and increased pest and herbicide resistance B) improved product quality, more rapid growth rate through plant hormone production, and decreased herbicide resistance C) more rapid growth rate through plant hormone production, pharmaceutical production, and increased antibiotic resistance D) pharmaceutical production, production of useful compounds not normally found in nature (xenobiotics), and the ability to remove or neutralize toxic compounds from the environment (bioremediation)
Caterpillars of the same species on a large leaf each chew as much leaf as they can. This is an example of
A. amensalism. B. interference competition. C. exploitation competition. D. commensalism. E. interspecific competition.
The cell walls of fungi are composed of cellulose
____________________ Indicate whether the statement is true or false.
Cardiac muscle cells connect to each other at special junctions called ________ disks
Fill in the blank(s) with correct word