Balantidium coli uses ________ to penetrate the intestinal mucosa

A) adhesion discs
B) flagella
C) cilia
D) pseudopodia
E) suckers


C

Biology & Microbiology

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Lateral meristems

a. are groups of dividing cells. b. are responsible for increases in the width of a stem or root. c. are also called cambia. d. produce secondary growth only. e. include all of these characteristics

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Metapopulation dynamics involve the processes of

A) emigration B) extinction C) character displacement D) All of these. E) A and B

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The coding regions of a gene are called

A) introns. B) exons. C) promoters. D) enhancers.

Biology & Microbiology

Sortase is a protein enzyme of bacteria that ________.

A. functions by transporting flagellum proteins to their extracellular site of assembly B. plays a key role in directing proteins to the periplasm C. catalyzes covalent attachment of some surface proteins to peptidoglycan D. directs secretion of proteins across the outer membrane

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