Predators often feed on weak or sick animals in an ecosystem. The role of the predator is described as its

A. community
B. habitat
C. niche
D. population


Answer: C. niche

Biology & Microbiology

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Immunological tests may determine the presence of

A. only antibody. B. only antigen. C. antigen or antibody. D. neither antibody nor antigen.

Biology & Microbiology

Elephants are killed for their tusks and rhinos for their horns. This is an example of __________ for traditional

medicine and ornaments. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Collagen fibers are characteristic of which

tissue? a. muscle b. epithelial c. connective d. nervous e. glandular

Biology & Microbiology

Similar body parts that reflect shared ancestry are

called __________. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology