Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 24, Problem 9TY
Summary Introduction
Introduction: The Hox genes are homeotic genes that are present in all animals and play a significant role in development. These genes are expressed along the anteroposterior axis during the development of the embryo.
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A. According to Gould and Vrba (1982), when the original cooling function of insect appendages was changed to flying, this is an example of
a.
inheritance.
b.
exaptation.
c.
apatation.
d.
adaptation.
B. When primates first evolved away from their mammalian ancestors, they
a.
developed a larger and more complex brain.
b.
increased their reliance on the sense of smell.
c.
increased the number of canines (for meat-eating).
d.
all of the above
Which of the following is NOT a trait commonly found in primates?
A.
Nails on the fingers and toes
B.
Color vision that includes reds and yellows
C.
Having a prehensile tail
D.
Skeletal anatomy that protects the eyes
Which of the following is NOT an ancestral trait in primates?
A.
Trichromacy
B.
Having Nocturnal Adaptations
C.
Fur
D.
Claws
Chapter 24 Solutions
Biology
Ch. 24.1 - Can you think of another example of two different...Ch. 24.1 - Prob. 1CSCh. 24.1 - Is temporal isolation an example of a prezygotic...Ch. 24.1 - Prob. 3CCCh. 24.2 - Prob. 1CSCh. 24.2 - Prob. 1EQCh. 24.2 - Prob. 2EQCh. 24.2 - Prob. 3EQCh. 24.2 - Prob. 1CCCh. 24.2 - Prob. 2CC
Ch. 24.4 - Evo-Devo: Evolutionary Developmental Biology...Ch. 24.4 - Prob. 1CSCh. 24.4 - Prob. 2CCCh. 24 - Macroevolution refers to evolutionary changes that...Ch. 24 - Prob. 2TYCh. 24 - Prob. 3TYCh. 24 - Prob. 4TYCh. 24 - Prob. 5TYCh. 24 - Prob. 6TYCh. 24 - Prob. 7TYCh. 24 - Prob. 8TYCh. 24 - Prob. 9TYCh. 24 - Prob. 10TYCh. 24 - What is the key difference between prezygotic and...Ch. 24 - What are the key differences between gradualism...Ch. 24 - Prob. 3CQCh. 24 - Prob. 1COQCh. 24 - Discuss the type of speciation (allopatric or...
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- A swim bladder is a gas-filled sac that helps fish maintainbuoyancy. The evolution of the swim bladder from the airbreathing organ (a simple lung) of an ancestral fish is anexample of(A) exaptation.(B) changes in Hox gene expression.(C) paedomorphosis.(D) adaptive radiationarrow_forwardWhich of the following best reflects a phylogenetic relationship between chimpanzees and baboons? A. They are grouped together because they live in similar habitats. B. They are grouped together because they have a common ancestor in recent history. C. They are grouped together because they both have an opposable thumb. D. They are grouped together because they both feed their young breast milk.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
- The biological variation in living primates provides models for understanding A. Morphology, behavior, adaptation in the evolutionary past, and alternative forms of classification B. Alternative forms of classification C. The uses of anatomical and genetic evidence D. Morphology, behavior, and adaptation in the evolutionary pastarrow_forwardYou are reading a scientific paper regarding the relationships of the anatomical and behavioral characteristics of chimpanzees and their implications for early hominid evolution. With the emphasis on anatomical and behavioral characteristics, this implies that the researchers are relying on A. Traditional classifications of chimpanzees and humans B. Nonevolutionary classifications of chimpanzees and humans C. An incorrect classification of human ancestors D. Cladistic classifications of chimpanzees and humansarrow_forwardWhat are the different hypotheses that might explain the stature of Homo floresiensis? A. Island Dwarfism B. They might be descended from Homo habilis or an Australopithecine C. All the individuals had a genetic mutation D. Both A and Barrow_forward
- Given a positive genetic correlation between the lengths of the maxilla and the mandible of a bird bill (and in which the ancestral state is a short bill), selection for a longer bill without pleiotropic effects can result in - A. either part will shorten but not both. B. both maxilla and mandible becoming longer. C. both maxilla and mandible will not change from the ancestral short length. D. either part will lengthen but not both.arrow_forwardAll mammals have tailbones and muscles for moving a tail. Even humans have a reduced tailbone and remnant tail-twitching muscles, though these features have no apparent usefulness. These traits in humans would best be described as (a) convergent structures. (b) fossil evidence. (c) evidence from biogeography. (d) vestigial traits.arrow_forwardSearch the Internet about the evidence suggesting that birds and dinasours are closely related. If scientist could extract DNA from dinasour fossils, how could they use the sequence to learn more about the origin of birds?arrow_forward
- Scientists compare the structures of a chicken embryo and a human embryo at the same stage of development. They find that both vertebrates have similar shapes and structures, including the presence of gill slits and tails. How is this comparison of the embryos used as supporting evidence of evolution? A. The similarities suggest that chickens and humans are the direct descendants of modern day fish with tails and gill slits. B. The similarities suggest that vertebrates passthrough each of the adult stages of their evoluntionary history as they develop. C. The similarities suggest that vertebrates can undergo genetic changes during development that lead to the evolution of new species D. The similarities suggest that chickens and humans descend from ancestors with genes that code for the development of tails and gill slitsarrow_forwardA. The earliest evolutionary change in the hominins was a. increased brain size. b. habitual bipedalism. c. changes in dentition. d. all of the above (they happened at the same time). B. Which of the following statements about endurance running is correct? a. Endurance running is found among all primates, but humans are most adapted for it. b. The ability to control body temperature is likely the most important running adaptation. c. Humans can outrun almost all other mammals, including horses, at short distances. d. Endurance running probably emerged with the appearance of Homo sapiens. Clear my choicearrow_forwardThe human skull and cranium (braincase) have evolved through which of the following Group of answer choices A. taking on the form of unrelated species B. loss of juvenile traits in adults C. reverting to the form of ancestral species D. retention of juvenile traits in adultsarrow_forward
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