BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Textbook Question
Chapter 17, Problem 13SA
In evolutionary trees, each node represents a(n) __________.
| a. single lineage | c. divergence |
| b. extinction | d. adaptive radiation. |
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Chapter 17 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 17 - _________is the original source of new alleles. a....Ch. 17 - Prob. 2SACh. 17 - Match the modes of natural selection with their...Ch. 17 - Prob. 4SACh. 17 - The persistence of the sickle allele at high...Ch. 17 - Prob. 6SACh. 17 - Prob. 7SACh. 17 - Which of the following is not part of how we...Ch. 17 - Prob. 9SACh. 17 - Prob. 10SA
Ch. 17 - Prob. 11SACh. 17 - Prob. 12SACh. 17 - In evolutionary trees, each node represents an...Ch. 17 - Match the evolutionary concepts. ____gene flow a....Ch. 17 - The evolution of wings helped the insect clade to...Ch. 17 - Species have traditionally been characterized as...Ch. 17 - Rama the cama, a llama-camel hybrid, was born in...Ch. 17 - Two species of antelope, one from Africa, the...Ch. 17 - Prob. 4CT
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- The pupfishes in the Death Valley region are an example of which evolutionary process? (a) background extinction (b) allopatric speciation (c) sympatric speciation (d) allopolyploidy (e) paedomorphosisarrow_forwardThe three beetle species live in the same ecosystem, and they likely evolved from the ancestral species that colonized the region. Which statement best explains how descent with modification influenced speciation in these beetles? A. The ancestral species carried neutral gene mutations that spontaneously caused speciation when they colonized the region. B. The ancestral species randomly diverged into three species before colonization and then colonized the regions that best suited their new adaptations. C. After colonization, small groups separated from the rest of the ancestral species and developed different adaptations that helped them survive and reproduce. D. After colonization, the large group interbred until they developed enough neutral genetic mutations for speciation to occur.arrow_forwardWhich assumption of cladistics is stated incorrectly? a. Living things are related by descent from a common ancestor. b. Speciation can produce one, two, or three new species. c. Traits change from one state to another. d. The polarity of a character state change can be determined.arrow_forward
- Through _______, a body part of an ancestor is modified differently in different lines of descent. a. homologous evolution c. adaptive divergence b. morphological convergence d. morphological divergencearrow_forwardThe Hawaiian silverswords are an excellent example of which evolutionary process? (a) allometry (b) preadaptation (c) microevolution (d) adaptive radiation (e) extinctionarrow_forwardWhat is a Homology? A) When an anatomic feature is shared among organisms and their descendants B) When two organisms appear the same C) When convergent evolution produces similar phenotypesarrow_forward
- mountain range separates a population of gorillas. After many generations, the gorillas on different sides of the mountain range cannot produce viable, fertile offspring. What has happened? a. Sympatric speciation c. Parapatric speciation b. Allopatric speciation d. Adaptive radiationarrow_forwardResearchers have found fossils of Eocene horse species in Colorado. Deeper deposits contain smaller species, and more recent deposits contain larger species. How does this observation support the theory of evolution? A. It provides evidence that species change over time. B. It does not support the theory of evolution. C. It shows that all species are related to each other. D. It proves that environments have changed over time. E. It suggests that species are unchanging and of recent origin.arrow_forwardWhales and dolphins evolved from land mammals. Their front legs have become fin-like structures called flukes which help them swim. The similarity in form and function of the flukes of whales and the fins of fishes is an example of...? Group of answer choices a. convergent evoluton b. homology c. neitherarrow_forward
- The bones of a bird’s wing are similar to the bones in a bat’s wing. This observation is an example of_______ . a. uniformitarianism c. comparative morphology b. evolution d. a lineagearrow_forwardWhy are humans so genetically similar within our species? A. Because humans evolved in multiple locations around the world at different times. B. Because humans evolved in one location (Africa) and we have existed as a species for very long time. C. Because humans evolved in one location (Africa) and we haven't existed as a species for very long. D. Humans are not very genetically similar to one another.arrow_forwardWhich assumption of cladistics is stated incorrectly?a. Living things are related by descent from a common ancestor.b. Speciation can produce one, two, or three new species.c. Traits change from one state to another.d. The polarity of a character state change can be determined.arrow_forward
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