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
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If mitosis makes somatic cells, what does meiosis make?
A. Gametes B. Heart cells C. Body cells D. Nerve cells
Which of the following are sensitive to streptomycin?
a. archaea b. fungi c. bacteria d. amoeba
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
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.