The Euryarchaeota includes all
A. known thermophilic extreme acidophiles.
B. the bacteria.
C. known methanogens.
D. green sulfur bacteria.
C
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You digest DNA from the frog Xenopus laevis with the enzyme NotI that produces sticky DNA ends. You can ligate your DNA to:
_____ blunt AluI ends from Xenopus laevis. _____ sticky NotI ends from Xenopus laevis. _____ blunt AluI ends from bacteria. _____ sticky NotI ends from bacteria. _____ sticky EcoRI ends from Xenopus laevis. _____ sticky EcoRI ends from bacteria.
Phagocytes have a pathogen-recognition system known as ________ that leads to the recognition, containment, and destruction of a pathogen
A) collagen B) fibrin C) pattern recognition receptors (PRR) D) pathogen associated molecular pattern (PAMP)
The time of menstrual flow, or period, in a normal human female occurs
A. at the same time as the egg is released from the ovary. B. approximately two days before the egg is released from the ovary. C. approximately two days after the egg is released from the ovary. D. approximately two weeks after the egg is released from the ovary.
Why have reptiles successfully adapted to land?
A) They have a two-chambered heart to maximize oxygen utilization. B) They lack gills at any point during their development. C) They are endothermic. D) They nurse their young. E) They produce eggs that resist dehydration.