C. Vestigial structures 34. The forelimbs of humans, horses, cats, and bats are considered to be modifications of anatomically similar structures inherited from a common ancestor. Which of the following are these structures referred to as? A. Analogous structures B. Homologous structures C. Vestigial structures 35. In humans, wisdom teeth and the appendix as well as wings on flightless birds are representations of structures with little to no functional use. Which of the following are these structures referred to as? A. Analogous structures B. Homologous structures C. Vestigial structures 36. Which of the following relies on the study of embryos as evidence of evolution? A. Comparative anatomy B. Comparative biochemistry ► C. Comparative embryology (Evo-devo!) D. The fossil record

C. Vestigial structures 34. The forelimbs of humans, horses, cats, and bats are considered to be modifications of anatomically similar structures inherited from a common ancestor. Which of the following are these structures referred to as? A. Analogous structures B. Homologous structures C. Vestigial structures 35. In humans, wisdom teeth and the appendix as well as wings on flightless birds are representations of structures with little to no functional use. Which of the following are these structures referred to as? A. Analogous structures B. Homologous structures C. Vestigial structures 36. Which of the following relies on the study of embryos as evidence of evolution? A. Comparative anatomy B. Comparative biochemistry ► C. Comparative embryology (Evo-devo!) D. The fossil record

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter32: Deuterostomes: Vertebrates And Their Closest Relatives

Section: Chapter Questions

Problem 13TYK

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18) At a high level, animals can be placed into evolutionary groupings based on their pattern of embryonic development. One of these patterns is called deuterostome development, where the opening called the ______ becomes the ______ and the embryonic cells exhibit _______ development. Group of answer choices gastrula, mouth, indeterminate blastopore, anus, indeterminate blastopore, mouth, determinate gastrula, anus, determinate blastopore, mouth, indeterminate
Which of the following pairs of structures are homoplastic? a. the wing skeleton of a bird and the wing skeleton of a bat b. thewingofabirdandthewingofafly c. theeyeofafishandtheeyeofahuman d. the bones in the foot of a duck and the bones in the foot of a chicken e. the toes on the foot of a lizard and the toes on the foot of a human
Scientists compare the structures of a chicken embryo and a human embryo at the same stage of development. They find that both vertebrates have similar shapes and structures, including the presence of gill slits and tails. How is this comparison of the embryos used as supporting evidence of evolution? A. The similarities suggest that chickens and humans are the direct descendants of modern day fish with tails and gill slits. B. The similarities suggest that vertebrates passthrough each of the adult stages of their evoluntionary history as they develop. C. The similarities suggest that vertebrates can undergo genetic changes during development that lead to the evolution of new species D. The similarities suggest that chickens and humans descend from ancestors with genes that code for the development of tails and gill slits
19. Humans no longer use their tailbones, but the human tailbone structurally resembles the tails of other mammals. This is an illustration of A. homologous structures. B. analogous structures. C. missing links. D. vestigial structures.
5. Which of the following characteristics separate "Classic" (European) Neanderthals from Neanderthal remains outside of Europe (i.e., those from SW Asia and the Middle East)? an occipital bun a chin a sagittal crest stature a sagittal keel
What are the genetic changes thatallow the repurposing of existing bodyparts during evolution? For example,how did bat wings evolve from arms?
5a) Your textbook points out that the pecten is a structure that is very similar in many bird species. Does this mean that mutations that affect the structure and the function of the pecten occur less than mutations that affect other body parts? Why or why not?
1. Embryology does NOT suggest which of the following? A. Developmental mechanisms are unique for every different type of life and share no commonalities. B. Human embryos pass through embryonic stages inherited from their ancestors. C. Developmental mechanisms are evolutionarily modified in a way that is unique to an organism’s way of life. 2. Which comparative anatomy example does NOT support the theory of evolution? A. Bats, humans, and cats have similarly constructed forelimbs and thus suggest a common ancestor. B. The genus of legless lizards are no longer considered lizards and are now part of the snake genus. C. Vestigial organs are structures that are no longer necessary for survival and are thus gradually becoming nonfunctional and reduced in size. D. All statements support the theory of evolution
Which is NOT an example of a structural homology? Please choose all applicable options. a) All vertebrate embryos form pharyngeal pouches.b) Vertebrate forelimbs generally have the same number and a similar arrangement of bones.c) The same group of embryonic cells forms the adult jaw of a perch and of a dog.d) All organisms share a common genetic code.
8) Each of the observations provides evidence that supports the idea of common ancestry and evolution. Which one is from the field of molecular biology? A) Mammals have two openings in the skull behind each eye socket, whereas reptiles and bird only have one opening. B) DNA analysis shows that the DNA of Neanderthals is more similar to the DNA of non‑African humans than that of Africans. C) Two closely related but distinct species of squirrels inhabit the north and south rims of the Grand Canyon. D) The embryos of both birds and mammals divide in a radial cleavage pattern instead of a spiral cleavage pattern present in insects.
Discuss the adaptations of Labeo?
26. A retro-molar space, occipital bun, big incisors, wide nasal aperture, big brow ridges, a long skull, "puffy cheeks", and thick "bowed" limb bones are characteristics associated with Homo sapiens neanderthalensis Homo sapiens sapiens (Anatomically Modern Homo sapiens) Archaic Homo sapiens Homo habilis Homo erectus