Which of the following is NOT a characteristic that distinguishes mammals from all other vertebrates?

A. mammary glands
B. hair
C. endothermy
D. specialized teeth
E. enlarged skull


C. endothermy

Biology & Microbiology

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The structure depicted the accompanying figure shows the _____

A) 1-4 linkage of the ?-glucose monomers of starch B) 1-4 linkage of the ?-glucose monomers of cellulose C) double-helical structure of a DNA molecule D) ?-helix secondary structure of a polypeptide E) ?-pleated sheet secondary structure of a polypeptide

Biology & Microbiology

A collection of interacting organisms of different species is a(n) 

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

Biology & Microbiology

__________cells function when dead

A. Parenchyma B. Sclerenchyma C. Collenchyma D. Phloem

Biology & Microbiology

"Runs" are bacterial movements that come from rotating a flagellum_________.

a. clockwise b. counter-clockwise c. up and down d. in and out

Biology & Microbiology