The approach to estimating phylogenetic trees is most like the approach of which
ID: 101271 • Letter: T
Question
The approach to estimating phylogenetic trees is most like the approach of which species concept? A) morphological species concept B) phylogenetic species concept C) biological species concept D) subspecies concept Some beetles and flies have antler-like structures on their heads, much like male deer do The existence of antlers in beetle, fly, and deer species with strong male-male competition is an example of _______. A) parsimony B) a synapomorphy C) homology D) convergent evolution Phylogenetic trees constructed from evidence from molecular systematics are based on similarities in _______. A) mutations to homologous genes B) habitat and lifestyle choices C) the pattern of embryological development D) morphology E) biochemical pathways Which of the following would be LEAST likely in the fossil record? A) marine-dwelling species B) marsh-dwelling species C) desert-dwelling species D) burrowing species Whatever its ultimate cause(s), the Cambrian explosion is prime example of ______. A) adaptive radiation B) mass extinction C) evolutionary stasis D) a large meteor impact The largest extinction, measured as a percentage of species that disappeared, occurred at the end of which geological period? A) Tertiary B) Silurian C) Cretaceous D) Permian E) Devonian Prokaryotes are classified as belonging to two different domains What are the domains? A) Eukarya and Monera B) Archaea and Monera C) Bacteria and Archaea D) Bacteria and Eukarya E) Bacteria and Protista A water sample from a hot thermal vent contained a single-celled organism that had a cell wall but lacked a nucleus What is its most likely classification? A) Archaea B) Protista C) Fungi D) Eukarya E) AnimaliaExplanation / Answer
Answer:
51. (B) phylogenetic species concept
Explanation:
Phylogenetic species concept defines a species as a group of organisms that shares a common ancestor and can be distinguished from other organisms that do not share the common ancestor.
52. (D) Convergent evolution
Explanation:
Convergent evolution creates analogous structures that have similar form or function, but absent in the last common ancestor.
53. (A) mutations to homologous genes
54. (C) desert-dwelling species
Explanation:
Desert-dwelling species live in arid regions, and these places are not conducive to the creation of fossils.
55. (A) adaptive radiation
Explanation:
Cambrian explosion is the most notable evolutionary radiation event.
56. (D) Permian
Explanation:
Permian-Triassic extinction are a series of extinction pulses that contributed to the greatest mass extinction in Earth's history.
57. (C) Bacteria and Archaea
58. (A) Archaea
Explanation:
Archaea are prokaryotes which can survive in extreme conditions, such as deep sea hydrothermal vents.
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