Urination is controlled by the operation of two sphincter muscles, both of which are made of smooth muscle fibers and are voluntarily controlled.

a. true
b. false


Answer: b. false

Biology & Microbiology

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The spreading of cancer cells, wound healing, and blood clotting all rely on the same type of cell movement called:  

A.  swimming. B.  crawling. C.  waving. D.  whipping.

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Fungi parasitic on plants produce specialized hyphae, called ____, that penetrate the host

a. asci b. basidia

c. soredia d. haustoria e. secondary mycelia

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Which is not a method of introducing new genes into a bacterium?

A. Conjugation B. Transduction C. Binary fission D. Transformation

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Which type of nutrient uptake involves the engulfment of small dissolved molecules into vesicles?

A. active transport B. pinocytosis C. receptor mediate endocytosis D. facilitated diffusion

Biology & Microbiology