Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 30, Problem 3TYU
The Cambrian radiation (a) occurred during the late Cambrian period (b) was a rapid evolution of new animal body plans during the middle Cambrian (c) was a result of prokaryotic and eukaryotic migration to many new regions (d) is supported by the great variety of Ediacaran fossils (e) b and c
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Chapter 30 Solutions
Biology (MindTap Course List)
Ch. 30.1 - Prob. 1LOCh. 30.1 - Prob. 1CCh. 30.2 - Compare the advantages and disadvantages of life...Ch. 30.2 - What are some advantages of marine environments...Ch. 30.2 - Prob. 2CCh. 30.3 - Prob. 3LOCh. 30.3 - Prob. 1CCh. 30.3 - Prob. 2CCh. 30.3 - Prob. 3CCh. 30.4 - Describe how biologists use morphology (including...
Ch. 30.4 - Cite specific examples of how data from molecular...Ch. 30.4 - Prob. 1CCh. 30.4 - What are some differences between protostomes and...Ch. 30.4 - Prob. 3CCh. 30 - Which of the following is not a characteristic of...Ch. 30 - Which of the following is not an adaptation to...Ch. 30 - The Cambrian radiation (a) occurred during the...Ch. 30 - The germ layer that gives rise to the outer...Ch. 30 - Prob. 5TYUCh. 30 - Prob. 6TYUCh. 30 - Prob. 7TYUCh. 30 - Prob. 8TYUCh. 30 - Prob. 9TYUCh. 30 - Prob. 10TYUCh. 30 - Prob. 11TYUCh. 30 - EVOLUTION LINK Examine the cladogram in Figure...Ch. 30 - Prob. 13TYUCh. 30 - Prob. 14TYU
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- The term “Cambrian explosion” refers to (a) an increase in biodiversity. (b) a mass extinction. (c) an atmospheric detonation due to increasing gas concentrations. (d) an oceanic eruption caused by underwater volcanic activity.arrow_forwardThe greatest mass extinction episode in the history of life occurred at what boundary? (a) Pliocene–Pleistocene (b) Permian–Triassic (c) Mesozoic–Cenozoic (d) Cambrian– Ordovician (e) Triassic–Jurassicarrow_forwardWhich of the following is not a hypothesis used to describe the sudden change in the diversity of lifeforms observed in the Cambrian Period? a. Increased continental drift creating greater terrestrial landmasses O b. Predator-prey arms race due to evolution of locomotion and development of exoskeletons O c. Evolution of the Hox genes which regulate complex body plans O d. Rising sea levels, increasing the volume of area species could occupy e. Continental flooding driving increased nutrient and mineral flux in the oceansarrow_forward
- Flowering plants and mammals diversified and became dominant during the (a) Paleozoic era (b) Mesozoic era (c) Cenozoic era (d) Devonian period (e) Cambrian periodarrow_forwardCarbon-14 dating works for fossils up to about 75,000 years old;fossils older than that contain too little 14C to be detected. Mostdinosaurs went extinct 65.5 million years ago. (a) Can 14C be usedto date dinosaur bones? Explain. (b) Radioactive uranium-235 hasa half-life of 704 million years. If it was incorporated into dinosaurbones, could it be used to date the dinosaur fossils? Explainarrow_forwardThe eon comprising the Cambrian period up to the present is called the (1). It is divided into three eras: Paleozoic, Mesozoic, and Cenozoic. The Paleozoic era, first (2) appeared. Finally, the Cenozoic era is where (3), flourished, lasting up to this day.arrow_forward
- Fossilized stromatolites(A) formed around deep-sea vents.(B) resemble structures formed by bacterial communities that are found today in some shallowmarine bays.(C) provide evidence that plants moved onto landin the company of fungi around 500 million years ago.(D) contain the first undisputed fossils of eukaryotes.arrow_forwardThe fossil record (a) usually occurs in sedimentary rock (b) sometimes appears fragmentary (c) is relatively complete for tropical rainforest organisms but incomplete for aquatic organisms (d) a and b (e) a, b, and carrow_forwardWhich of the following periods is the earliest during which animals may have appeared? a. Ordovician period b. Cambrian period c. Ediacaran period d. Cryogenian periodarrow_forward
- The presence of homologous structures in two different groups of organisms suggests that (a) the organisms evolved from a common ancestor (b) convergent evolution has occurred (c) they belong to a polyphyletic group (d) homoplasy has occurred (e) independently acquired characters may evolve when organisms inhabit similar environmentsarrow_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_forwardAdaptive radiation is common following a period of mass extinction, probably because (a) the survivors of a mass extinction are remarkably well adapted to their environment (b) the unchanging environment following a mass extinction drives the evolutionary process (c) many adaptive zones are empty(d) many ecological niches are filled (e) the environment induces changes in the timing of development for many speciesarrow_forward
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