A red-shouldered hawk chases a falcon away from a dead squirrel. This is an example of:

A) coexistence. B) interspecific competition.
C) commensalism. D) mutualism.


Answer: B

Biology & Microbiology

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This polysaccharide is an important ECM component for the exoskeleton of many insects and shellfish.

A. proteoglycan B. glycosaminoglycans C. collagen D. chitin E. laminin

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How do scientists most often access genome sequences determined by research projects?

a. They must request the sequence from the group that performed the research. b. They must request the sequence from the governmental or private group that funded the research. c. They must request the sequence from the company that performed the sequencing. d. They can retrieve the sequence from an online public database, such as GenBank. e. They must sequence the organism themselves to obtain the sequence.

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Arthropods' have nervous systems composed of a nerve net

Indicate whether the statement is true or false.

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Which is NOT a disease caused by a parasitic helminth?

a. leishmaniasis b. onchocerciasis c. schistosomiasis d. trichinosis

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