Campbell Biology (10th Edition)
10th Edition
ISBN: 9780321775658
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Chapter 32, Problem 3TYU
Summary Introduction
Introduction: Cambrian explosion lead to the sudden diversification of the amimal species. Cambrian explosion actually consist of the three explosion in which several morphological (novel adaptations in prey predator), geological (increase in oxygen level) and genetic mutations and duplications occurred (Hox genes).
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Evidence exists that a catastrophic collision between Earth and a large extraterrestrial body occurred 66 mya, resulting in the extinction of (a) worms, mollusks, and soft-bodied arthropods (b) jawless ostracoderms and jawed placoderms (c) dinosaurs, pterosaurs, and many gymnosperm species(d) mastodons, saber-toothed cats, and giant ground sloths (e) ferns, horsetails, and club mosses
The time of greatest evolutionary diversification in the history of life occurred during the (a) Cambrian period (b) Ordovician period (c) Silurian period (d) Carboniferous period (e) Permian period
Which of the following is not a hypothesis
used to describe the sudden change in the
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Cambrian Period?
a. Increased continental drift creating
greater terrestrial landmasses
O b. Predator-prey arms race due to
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development of exoskeletons
O c. Evolution of the Hox genes which
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O d. Rising sea levels, increasing the
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occupy
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in the oceans
Chapter 32 Solutions
Campbell Biology (10th Edition)
Ch. 32.1 - Summarize the main stages of animal development....Ch. 32.1 - WHAT IF? What animal characteristics would be...Ch. 32.2 - Put the following milestones in animal evolution...Ch. 32.2 - Prob. 2CCCh. 32.2 - MAKE CONNECTIONS Evaluate whether the origin of...Ch. 32.3 - Distinguish the terms grade and clade.Ch. 32.3 - Compare three aspects of the early development of...Ch. 32.3 - Prob. 3CCCh. 32.4 - Prob. 1CCCh. 32.4 - WHAT IF? Suppose ctenophores are basal metazoans...
Ch. 32.4 - Prob. 3CCCh. 32 - Prob. 32.1CRCh. 32 - What caused ihe Cambrian exploston? Describe...Ch. 32 - Describe how body plans provide useful Information...Ch. 32 - Prob. 32.4CRCh. 32 - Prob. 1TYUCh. 32 - The distinction between sponges and other animal...Ch. 32 - Prob. 3TYUCh. 32 - Prob. 4TYUCh. 32 - EVOLUTION CONNECTION A professor begins a lecture...Ch. 32 - SCIENTIFIC INQUIRY INTERPRET THE DATA Redraw the...Ch. 32 - WRITE ABOUT A THEME: INTERACTIONS Animal life...Ch. 32 - SYNTHESIZE YOUR KNOWLEDGE This organism is an...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
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- Mammals, like humans and apes, have 5 digits on their fore and hind limbs. Modern horses have 1. How might you recontrust the ancestral state of mammal tow number?a) investigate the number of toes on all extant horses and apesb) investigate the number of toes for other mammals and use parsimony to deduce the ancestral statec) investigate the number of toes for an outgroup that is closely related to mammals, for example reptiles or amphibiansd) either b or ce) all of the abovearrow_forwardWhy is animal evolution during the early Cambrian referred to as an “explosion”?arrow_forwardWhat is plausible evidence supporting the hypothesis that birds evolved from dinosaurs? Please choose the best option. a) Dinosaurs and birds are both predatory.b) Fossilized transitional forms are discovered that possess features of birds and dinosaurs yet are difficult to classify into either group.c) The wing structure of a bird is similar to a dinosaur.d) Bird fossils can be found alongside dinosaur fossils.arrow_forward
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- 375 million years ago, the population of organisms we call Tiktaalik had variation in many aspects of the appendages including the bones, muscles and nerves. What evolutionary force was likely most responsible for rapid adaptation and the relatively rapid evolution of limbs in this lineage? (A) natural selection (B) NONE of these C) mutations D genetic drift (E) speciationarrow_forwardWhat characteristic(s) of the fossil record make(s) it strong support of evolution? a) It has fossils of many species in it that are not found on earth today. b) It is has a complete record of every form of life ever existing c) Species appear in sediment layers in a consistent pattern d) All fossils are similar to living forms found in the same area as the fossils Group of answer choices A. b and d B. a and b C. c and d D. a and c E. b and carrow_forwardThe earliest hominin that most paleoanthropologists place in genus Homo is (a) H. habilis (b) H. ergaster (c) H. erectus (d) H. heidelbergensis (e) H. neanderthalensisarrow_forward
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