Introduced species become invasive when they

A. compete with native species without expanding their range.
B. move from temperate to tropical settings.
C. expand their range and outcompete native species.
D. lead to a cost for humans.
E. fill an empty ecological niche.


C. expand their range and outcompete native species.

Biology & Microbiology

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During their experiments with chlorella, Calvin and Benson found no free glucose. Why do you think this is?

A. Glucose takes too long to synthesize. B. Glucose is an isomer of fructose. C. Glucose is stored as starch. D. Glucose would cause H2O to leave the chlorella cells. E. Green algae do not respire when illuminated.

Biology & Microbiology

Lamellipodia are formed by:

A. the contraction of myosin and actin. B. the polymerization of actin microfilaments. C. the polymerization of microtubules. D. the disassembly of intermediate filaments.

Biology & Microbiology

Which fields of study most specifically addresses the decline in biodiversity?

a. biology b. ecology c. conservation biology d. wildlife biology e. molecular biology

Biology & Microbiology

The commercially important unicellular protists that are used in filters, polishes, and other industrial

processes are the:a. dinoflagellates. b. euglenoids. c. apicomplexans. d. zooflagellates. e. diatoms.

Biology & Microbiology