How is the cell cycle of Sulfolobus spp. similar to that of eukaryotes?
A. Sulfolobus has microtubules composed of a tubulin homolog that separate the chromosomes.
B. A centrosome is apparent in Sulfolobus during G2.
C. Sulfolobus demonstrates prophase, metaphase, anaphase, and telophase.
D. The cytokinesis process in Sulfolobus is similar to the process in eukaryotes.
Answer: D
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What is the correct sequence of structures through which air passes through on the way into the mammalian lung?
A. pharynx ? larynx ? trachea ? bronchi ? bronchioles ? alveoli B. larynx ? pharynx ? trachea ? bronchi ? bronchioles ? alveoli C. pharynx ? trachea ? larynx ? bronchi ? bronchioles ?alveoli D. bronchi ? bronchioles ? pharynx ? larynx ? trachea ? alveoli E. alveoli ? bronchioles ? bronchi ? trachea ? larynx ? pharynx
The first stage of photosynthesis is(are) the __________, and the second stage is(are) the
__________.
a. Calvin cycle; Calvin cycle b. Calvin cycle; light reactions c. light reactions; Calvin cycle d. light reactions; light reactions
The cytoskeleton
a. extends between the nucleus and the plasma membrane. b. is found within the nucleus. c. is associated with only certain cell structures. d. is found within organelles. e. is found in all animal cells but not in cells with cell walls.
Which of the following organisms may grow at pH 3.5?
A. Clostridium B. Streptococcus C. fungi D. lactic acid bacteria E. fungi AND lactic acid bacteria