turtles, lizards, snakes crocodiles dinosaurs parental care keratinized skin amniote egg bipedalsm hair birds avian endothermy asymmetrical leathers endothermy mammary glands mammals 1. a. Which character evolved first: the amniote egg or hair? b. Which character evolved first: keratinized skin or bipedalism? c. On the cladogram, circle the node that represents the most recent common ancestor of dinosaurs and birds

turtles, lizards, snakes crocodiles dinosaurs parental care keratinized skin amniote egg bipedalsm hair birds avian endothermy asymmetrical leathers endothermy mammary glands mammals 1. a. Which character evolved first: the amniote egg or hair? b. Which character evolved first: keratinized skin or bipedalism? c. On the cladogram, circle the node that represents the most recent common ancestor of dinosaurs and birds

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter16: Evidence Of Evolution

Section: Chapter Questions

Problem 5SA: In which type of rock are you more likely to find a fossil? a. basalt, a dark, fine-grained volcanic...

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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?
A great adaptive radiation of animals that occurred during the _______ gave rise to modern animal lineages. a. Precambrian c. Cambrian b. Ediacaran d. Jurassic
Match 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 man
Rooneyia is an Eocene primate fossil. This ____ found in Texas is distinct from other North American Eocene Primates in that it has ____ a. omomyid; well-developed postorbital flanges b. eosimiid; poorly-developed postorbital flanges c. adapid; a long rostrum d. oligopithecid; very large eye orbits e. none of the above
Rooneyia is an Eocene primate fossil. This ____ found in Texas is distinct from other North American Eocene Primates in that in has ____. a. omomyid; well-developed postorbital flanges b. eosimiid; poorly-developed postorbital flanges c. adapid; a long rostrum d. oligopithecid; very large eye orbits
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 above
This West Indian manatee (Trichechus manatus) is an aquaticmammal. Like amphibians and reptiles, mammals are tetrapods (vertebrates with four limbs). Explain why manatees areconsidered tetrapods even though they lack hind limbs, andsuggest traits that manatees likely share with leopards andother mammals (see Figure 26.12b). Discuss how early members of the manatee lineage might have differed from today’smanatees.
During the ____ epoch, there were fewer ____ and more ____, a reversal in the relative representation of these forms during modern times. a. Eocene; omomyids; eosimiids b. Miocene; Old World monkeys; apes C. Miocene; apes; Old World monkeys d. Oligocene; apes; Old World monkeys e. Paleocene; New World monkeys; Old World monkeys
6. Organisms classified as “birds” share a common feature. What shared derived character defined this taxonomic group? 7. What feature is present in all animals but is not present in birds and reptiles? 8. Reptiles, birds, and mammals are amniotes. I’m addition to an amniotic egg, the common ancestor of all reptiles, birds, and mammals had a thick epidermal layer of scales partially composed of a protein called keratin. Keratinized skin helps prevent water loss in terrestrial environment. A. what type (or form) of Keratinized epidermal structure represents the ancestral character state of all reptiles, birds, and mammals?
As hominins diverged from other primates, which of thefollowing appeared first?(A) reduced jawbones(B) an enlarged brain(C) the making of stone tools(D) bipedal locomotion
What are the Laetoli footprints? A. Fossilized footprints of Ardi walking across the landscape millions of years ago B. Fossilized footprints of Neanderthals walking across the landscape thousands of years ago C. Fossilized footprints and handprints of Australopithecines walking on all fours across the landscape millions of years ago D. Fossilized footprints of Australopithecines walking across the landscape millions of years ago
Which of the following is responsible for the early predominant image of Neanderthals as brutish cavemen? a). They had small brain cases with stocky bodies and were always recovered from cave sites b). The fossil evidence reveals that they had little cognitive capacity and had a hunched over posture c). An early fossil find of an Individual suffering from arthritis was assembled and taken as the type specimen foer all Neanderthals, mistakenly giving the idea that Neanderthals were an ape-like, hunched-over species.d). None of the above are true