Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 29, Problem 21RQ
Which of the following is part of a clade believed to have died out, leaving no descendants?
- Paranthropus robustus
- Australopithecus africanus
- Homo erectus
- Homo sapiens sapiens
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This is a potential phylogenetic tree created by anthropologists at UC Berkeley.A-Ardipithecus ramidusB-Australopithecus anamensisC-Australopithecus afarensisD-Australopithecus africanusE-Paranthropus aethiopicusF-Paranthropus robustusG-Paranthropus boiseiH-Australopithecus garhiI-Homo rudolfensisJ-Homo habilusK-Homo ergasterL-Homo erectusM-Homo heidelbergensisN-Homo neanderthalensisO-Homo sapiens What kinds of evidence to you think anthropologists used to create this tree?
What can we say about Homo sapiens?
Select one:
O a. Originated in Africa, shared a common ancestor with
Neanderthals, Denisovans, and most likely descendants
from a group related to Homo heildenbergensis
O b. Migrated out of Africa, most likely 2 million years ago,
hybridized with Homo floresiensis and differentiated from
other Homo as the sole species to evolved language.
O c. Migrated from Ethiopia 200,000 years ago, hybridized
with Denisovans and Neanderthals to later replace them
O d. Is the result of hybridization between Neanderthals and
Denisovans, only lineage to show bipedalism and
posses the largest brain capacity of all Homo
O e. A and C are correct
Using the information in Figure , draw a simple cladogram that represents areasonable hypothesis of human evolution at the genus level. (Hint: Your diagram will have three branches.)
Chapter 29 Solutions
Biology 2e
Ch. 29 - Figure 29.3 Which of the following statements...Ch. 29 - Figure 29.22 Which of the following statements...Ch. 29 - Figure 29.24 Members of the order Testudines have...Ch. 29 - Which of the following is not contained in phylum...Ch. 29 - Which group of invertebrates is most closely...Ch. 29 - Hagfish. lam preys. sharks, and tuna are all...Ch. 29 - Members of Chondrichthyes differ from members of...Ch. 29 - Members of Chondrichfhyes are thought to be...Ch. 29 - A marine biologist catches a species of fish she...Ch. 29 - Which of the following is not true of...
Ch. 29 - Frogs belong to which order? Anura Urodela Caudata...Ch. 29 - During the Mesozoic period, diapsids diverged...Ch. 29 - Squamata includes. crocodiles and alligators...Ch. 29 - Which of the following reptile groups gave rise to...Ch. 29 - A bird or feathered dinosaur is. Neornithes...Ch. 29 - Which of the following feather types helps to...Ch. 29 - Eccrine glands produce sweat lipids scents milkCh. 29 - Monotremes include: kangaroos koalas bandicoots...Ch. 29 - The evolution of which of the following features...Ch. 29 - Which of the following is not an anthropoid?...Ch. 29 - Which of the following is part of a clade believed...Ch. 29 - Which of the following human traits is not a...Ch. 29 - What are the characteristic features of the...Ch. 29 - What is the structural advantage of the notochord...Ch. 29 - What can be inferred about the evolution of the...Ch. 29 - Why did gnathostomes replace most agnathans?Ch. 29 - Explain why frogs are restricted to a moist...Ch. 29 - Describe the differences between the larval and...Ch. 29 - Describe how metamorphosis changes the structures...Ch. 29 - Describe the functions of the three extraembryonic...Ch. 29 - What characteristics differentiate lizards and...Ch. 29 - Based on how reptiles therm oregulate, which...Ch. 29 - Explain why birds are thought to have evolved from...Ch. 29 - Describe three skeletal adaptations that allow for...Ch. 29 - How would the chest structure differ between...Ch. 29 - Describe three unique features of the mammalian...Ch. 29 - Describe three characteristics of the mammalian...Ch. 29 - How did the evolution of jaw musculature allow...Ch. 29 - How did archaic Homo sapiens differ from...Ch. 29 - Why is it so difficult to determine the sequence...
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- The similar appearance between elephants and mammoths is likely a product of: convergent evolution divergent evolution artificial selection parallell evolution artificial evolutionarrow_forwardGiven the sources of evidence, explain precisely how it supports evolution.arrow_forwardOld and New World Monkeys diverged from a common ancestor approximately 10 million years ago. True or false?arrow_forward
- The proliferation of the Homo sapiens species has been attributed by scientists to their migration around the African and Eurasian continents between 70,000 and 100,000 years ago. What enabled this constant migration? What resulted from this constant migration?arrow_forwardHomo floresiensis describe the fossil/ DNA etc. and where it comes from. Describe what makes this species different from previously discovered species. Describe one way it changes our understanding of human evolution.arrow_forwardHow do we know Homo_sapiens when we see one?arrow_forward
- Estimate the number of hominin species that have existed in both robust and gracile clades of evolution over the last 6 million years. > 1000 ~ 20 – 30 2: Austropithicus and Homo 1: only Homo sapienarrow_forwardDiscuss the importance of the replacement model in the evolution of the genus Homo.arrow_forwardBonobos and chimpanzees are sister groups. Humans, bonobos, and chimpanzees share a more recent ancestor than do humans and gorillas. Orangutans share an ancestor with all of these groups. Draw a cladogram that represents these relationships.arrow_forward
- Because the genomes of chimpanzees and humans are almost identical, and the difference between them are no greater than any two humans, their classification has been changed. Chimpanzees and humans are placed in the same family and subfamily. They are in different “tribes”, which is a rarely used classification category between subfamily and genus. The former classification of chimpanzees and humans placed them in different families. Do you believe that chimpanzees should be classified in the same family and/or subfamily as humans? Or do you prefer the previous classification? Which way seems prejudicial? Give your reasoningsarrow_forwardNew World monkeys _____. a. lack a tail b. are bipedal c. live only in Africa d. are dry-nosed primates e. are human ancestors f. all of the abovearrow_forwardMatch each group with its description. _____ hominins a. first to be found outside Africa _____ tarsiers b. modem humans _____ Homo erectus c. defined by bipedalism _____ Homo sapiens d. primates, but not anthropoids. _____ Homohabilis e. short-statured hobbits _____ Homo floresiensis f. name means handy manarrow_forward
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