Which of the following structures is/are used by prokaryotes for attaching to surfaces?

A) flagella
B) nucleoid
C) anchoring junctions
D) capsule


Answer: D

Biology & Microbiology

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If mitosis makes somatic cells, what does meiosis make?

A. Gametes B. Heart cells C. Body cells D. Nerve cells

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Which of the following are sensitive to streptomycin?

a. archaea b. fungi c. bacteria d. amoeba

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Two extant species of coelacanths and six species of lungfish are members of which lineage?

a. Petromyzontoidea b. Chondrichthyes c. Actinopterygii d. Myxinoidea e. Sarcopterygii

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Older people are more likely to develop autoimmune diseases. One possibility is

a. a heightening of the immune response associated with age. b. an increase in the number of T cells. c. an increase in the activity of B cells. d. a reduction in DNA repair mechanisms leading to a change in self-markers. e. viral infections.

Biology & Microbiology