These contain enzymes and are the main organelles of intracellular digestion
a. Golgi bodies
b. ribosomes
c. mitochondria
d. lysosomes
e. endoplasmic reticula
D
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Which of the following would you expect to find in the tonsilar crypts?
A. Streptococcus B. Staphylococcus C. Neisseria D. Micrococcus
The nuclear membrane of eukaryotes originated from
a. captured aerobic bacteria. b. prebiotic soup. c. captured cyanobacteria. d. invaginations of the plasma membrane. e. the large circular chromosome of the prokaryotic ancestor.
It was concluded that the fossil Dorudon atrox
was related to both whales and modern artiodactyls because it had a whalelike skull and
a. whalelike ankle bones. b. artiodactyl-like ankle bones. c. whalelike flippers. d. artiodactyl-like flippers. e. more than one of these
A protein that functions as a cell-cycle regulator causes cell death (apoptosis) under high sunlight exposure. Which symbol given to this protein?
A) p34 B) cyclin C) p102 D) phosphokinase E) p53