Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Chapter 20, Problem 2VCQ
Figure 20.10 Which animals in this figure belong to a clade that includes animals with hair? Which evolved first, hair or the amniotic egg?
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Using various resources such as your school Library or the internet and discussions with your teacher, trace the evolutionary stages of any one animal, say horse.
Which group of mammals have live birth but lack a placenta?
Group of answer choices
Metatheria
Eutheria
Prototheria
Primates
Examine the image below. To which fossil primate taxonomic group did it belong? During which geological epoch do we most likely find it?
Taxonomic Group:
Geological Epoch:
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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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
- Figure 12.8 Which animals in this figure belong to a clade that includes animals with hair? Which evolved first: hair or the amniotic egg?arrow_forwardWhich of these are considered the first true primates? a.Anthropoids b.Proconsulids c.Euprimatesarrow_forwardWhich classification group do we share it with all primates? A. Genus B. Class C. Order D. Family arrow_forward
- List at least five evolutionary changes that occurred with birds (each one should be from a different organ system)?arrow_forwardThe forelimbs of the organisms in Figure 1 are examples of what type of structures? What do these structures indicate about the evolution of the three organisms? What would be an example of a structure analogous to the last structure? How does the anatomy of the forelimbs show an evolutionary pattern?arrow_forwardWhich of the following is not a change that occurred through primate evolution? a size of teeth b change in DNA c location of spinal cord entering skull d size of brainarrow_forward
- Why are plesiadapiforms most likely the earliest primate ancestors? A. They do not have a postorbital bar or plate B. Their eyes are forward-facing C. They have grasping fingers D. They have clawsarrow_forwardFigure 12.3 In what levels are cats and dogs considered to be part of the same group?arrow_forwardAustralopiths are__________ a. extinct b. placental mammals c. hominoids d. all of the abovearrow_forward
- Pick a specific animal that exists today and research its ancestor from millions of years ago. How has this animal evolved? Compare it to the ancestor and explain why certain changes may have taken place.arrow_forwardBirds are supposed to be the dinosaurs' closest relatives. List and explain five reasons why the Aves have been able to adapt (morphological traits) and survive in the ever-changing world we live into this day.arrow_forwardIf you are a scientist studying the evolution of animals, what is the best approach you can use for analysis? analyzing behaviors of living animals with a common ancestry analyzing embryos and skeletons of animals of the same species analyzing DNA sequences and embryonic development analyzing the the fossilized remains of animals from different time periodsarrow_forward
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