How can evolutionary relationships among organisms be determined by comparing embryonic development? A. Embryos of fish and mammals share no similarities B. Embryos retrace their ancestral stages during embryonic development C. Embryos of more closely related organisms show greater similarities in development D. Embryos that develop inside eggs lack similarities to placental mammals

How can evolutionary relationships among organisms be determined by comparing embryonic development? A. Embryos of fish and mammals share no similarities B. Embryos retrace their ancestral stages during embryonic development C. Embryos of more closely related organisms show greater similarities in development D. Embryos that develop inside eggs lack similarities to placental mammals

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter11: Evolution And Its Processes

Section: Chapter Questions

Problem 8RQ: The wing of a bird and the arm of a human are examples of ______. a. vestigial structures b....

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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
What is embryology? A. The science of the development of embryos from fertilization to birth B. Microevolution C. A multicellular organism that primarily undergoes extensive and rapid growth D. Macro evolution
What type of data is primarily used to determine the existence and appearance of early animal species? a. molecular data b. fossil data c. morphological data d. embryological development data
Cephalopods have complex eyes that arose separately from vertebrate eyes that are also used in vision. What's this an illustration of? A. Analogous structures B. Vestigial structures C. Homologous structures D. Missing links
Both octopuses and cuttlefish have a single-lens eye. Their common ancestor also had a single-lens eye. What word describes the relationship between the octopus eye and the cuttlefish eye? a. homologous c. analogous b. vestigial d. convergent
If you were to build a phylogenetic tree of living animals, which of the following derived characters would appear first? A. deuterostome development B. true tissues C. protostome development D. bilateral symmetry
Mrs. Robinson is comparing the embryos of parrot fish and salamanders. Although the adult organisms look very different, the embryos follow similar developmental patterns. What does this similarity suggest?
The wing of a bird and the arm of a human are examples of ______. a. vestigial structures b. molecular structures c. homologous structures d. analogous structures
Examine insect development. 1) Contrast incomplete metamorphosis and complete metamorphosis. 2) Identify two insects that undergo an incomplete metamorphosis during development. 3) Identify two insects that undergo a complete metamorphosis during development.
Suppose you watch a video showing the development of an unknown animal. What clues can the developmental pattern give you about how this organism is classified?
Which statement is true of hox genes? Group of answer choices A. they regulate development of body regions and are found in all animals B. they control the functioning of cells and are found in all life C. they control growth and development in plants D. they are only found in insects and control segmentation
How do fossils provide evidence that evolution has happened on Earth? a. Fossils show that some species have gone extinct. b. Fossils show how life forms present today are different than those from the past. Fossils show how the sizes of certain animals has changed drastically over millions of с. years. d. Different sedimentary rock layers provide evidence for how the environment has changed over time.