Why are modern light microscopes better than the ones Leeuwenhoek used?
A) Modern microscopes have a fivefold better resolution.
B) Modern microscopes are compound instead of simple.
C) Modern microscopes have lenses with smaller numerical apertures.
D) Modern lenses are made of prisms.
E) Modern microscopes are compound and have fivefold better resolution.
E
Bloom's Taxonomy: Application
Section: Microscopy
Learning Outcome: 4.6, 4.8
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Which of the following statements about invasive species is false?
A. The effect of invasive species on natural communities is always a reduction in diversity. B. Humans are responsible for dramatic increases in the number of invasive species. C. Invasive species often thrive in new areas because they have few natural predators. D. Introduction of invasive species has more devastating effects on islands because of the smaller number of predators and competitors in these systems. E. Invasive species reduce community diversity through displacement, competition, and predation.
Which one of the following sets of homopolymeric peptides is generated in vitro with the synthetic RNA polymer consisting of the repeating trinucleotide (GUC)n?
A. Poly(Val), Poly(Ala), and Poly(Leu) B. Poly(Ser), Poly(Gly), and Poly(Arg) C. Poly(Arg), Poly(Ser), and Poly(Val) D. Poly(Val), Poly(His), and Poly(Asn)
Reduce
What will be an ideal response?
The amount of energy released from a glucose
molecule is dependent on what happens to a. carbon atoms. b. oxygen atoms. c. hydrogen atoms. d. phosphorus atoms. e. water molecules.