Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Chapter 20, Problem 19CTQ
Dolphins and fish have similar body shapes. Is this feature more likely a homologous or analogous trait?
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Chapter 20 Solutions
Biology 2e
Ch. 20 - Figure 20.6 At what levels are cats and dogs...Ch. 20 - Figure 20.10 Which animals in this figure belong...Ch. 20 - Figure 20.11 What is the largest clade in this...Ch. 20 - What is used to determine phylogeny? mutations DNA...Ch. 20 - What do scientists in the field of systematics...Ch. 20 - Which statement about the taxonomic classification...Ch. 20 - On a phylogenetic tree, which term refers to...Ch. 20 - Which statement about analogies is correct? They...Ch. 20 - What do scientists use to apply cladistics?...Ch. 20 - What is true about organisms that are a part of...
Ch. 20 - Why do scientists apply the concept of maximum...Ch. 20 - The transfer of genes by a mechanism not involving...Ch. 20 - Particles that transfer genetic material from one...Ch. 20 - What does the trunk of the classic phylogenetic...Ch. 20 - Which phylogenetic model proposes that all three...Ch. 20 - How does a phylogenetic tree relate to the passing...Ch. 20 - Some organisms that appear very closely related on...Ch. 20 - List the different levels of the taxonomic...Ch. 20 - Dolphins and fish have similar body shapes. Is...Ch. 20 - Why is it so important for scientists to...Ch. 20 - Describe maximum parsimony.Ch. 20 - Compare three different ways that eukaryotic cells...Ch. 20 - Describe how aphids acquired the ability to change...
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- Whales are divided into two groups: tooth whales, such as the orca, and baleen whales such as the humpback. Which would you predict is most closely related to the Dorudon? Explain.arrow_forwardThe appendix, which is not needed to survive, is considered to be a? a. Homology b. Vestigial Structure c. Homologous Structure d. Analogous Structurearrow_forwardWhich is true concerning how fossils are used as evidence? A. Fossils cannot be compared to one another but can be compared to living organisms. B. Fossils can be compared to one another but not to living organisms. C. Fossils cannot be compared to one another or to living organisms. D. Fossils can be compared to one another and to living organisms.arrow_forward
- Basilosaurus was a fully aquatic ancient whale species that had vestigial _____________________ which suggests a terrestrial past. knee caps feet hind limbs hip girdlearrow_forwardWhat characteristics are shared between monotremes and placental mammals but not marsupials? What would this observation lead to conclude about the order in which these animals evolved?arrow_forwardWhich features characteristic of humans are unlikely to fossilize? a. the bones and dung b. the jaws and dung c. behavioural and soft tissue features d. behavioural and hard tissue featuresarrow_forward
- Which species has the least robust brown ridges? A. Homo rudolfensis B. Homo habilis C. Australopithecus afarensis D. Homo erectusarrow_forwardScientists often use a cladogram such as the one below to illustrate evolutionary relationships. Which is the best explanation for separating reptiles from mammals?arrow_forwardWhat does hindlimb shape say about the ancestry of dolphins and other cetaceans?arrow_forward
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