The figure shows a Paramecium, a single-celled freshwater protist. The hairlike structures visible on the Paramecium allow it to move. These structures are microfilaments.





a. true

b. false


b. false

Biology & Microbiology

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Which organism(s) is/are acid-fast?

A. Nocardia B. Pseudomonas C. E. coli D. Mycobacterium E. Nocardia AND Mycobacterium

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A passageway shared by the digestive and respiratory systems is the ________

A) sinuses B) pharynx C) larynx D) esophagus

Biology & Microbiology

Cnidarians evolved from an ancestral group of

(a) sponges. (b) protists. (c) fungi. (d) plants.

Biology & Microbiology

Please match the description to the pattern of infection.

An infection that has spread to multiple body sites and tissue fluids; no longer restricted to one body site A) Acute infection B) Systemic infection C) Localized infection D) Chronic infection E) Secondary infection

Biology & Microbiology