According to the optimal foraging theory, a predator will select prey 1 (P1 ) over prey 2 (P2 ) when
A) E1 < E2.
B) Th1 < Th2.
C) E1/Th1 < E2/Th2.
D) Nprey1 > N prey2.
B
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The electrons flowing through the electron transport chains in photosynthesis come from and end up being carried by _.
Examine this image, showing an electron transport chain in photosynthesis.
A. oxygen; NADPH
B. oxygen; water
C. NADPH; water
D. water; NADPH
E. NADPH; oxygen
Although Gregor Mendel knew nothing of chromosomes, mitosis, or meiosis, we now know that his Principle of Segregation corresponds to the events of _____
1.meiosis I 2.meiosis II 3.mitosis 4.both meiosis and mitosis 5.neither meiosis nor mitosis
Bacteriophages are
a. large bacteria. b. pathogenic bacteria. c. viruses that infect bacteria. d. virus-eating bacteria. e. viruses that infect eukaryotic cells.
Yersinia pestis typically contains
A. one plasmid. B. two plasmids. C. three plasmids. D. four plasmids.