EBK BIOLOGY: CONCEPTS AND APPLICATIONS
9th Edition
ISBN: 8220100477805
Author: STARR
Publisher: CENGAGE L
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Chapter 17, Problem 12SQ
Summary Introduction
Introduction:
Evolutionary relationships are established between different species to find how each species is related to other species around it. Evolutionary relations are set up on the basis of similar traits and genetic similarities. Evolutionary trees help in hypothesizing the relationship between different groups of organisms.
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A cladogram or phylogenetic tree is used to classify organisms into groups based on their shared characteristics, where each node or branching point is known as _________________.
Group of answer choices
A. Common ancestry
B. New species
C. Reproductive isolation
D. New characteristic
E. None of the answers are correct
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 lineage
The process in which environmental pressures result in the differential survival and reproduction of individuals of a population is called_____ . a. catastrophism c. natural selection b. evolution d. genetics
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EBK BIOLOGY: CONCEPTS AND APPLICATIONS
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- If two mouse populations do not interbreed but are found in the same area, they may form different species due to d. Adaptive radiation c. Spontaneous generation a. Geographic isolation b. Mutations OOOOarrow_forwardThe type of speciation that takes place in geographically overlapping populations is known as ________________________. A. Allopatric speciation B. Sympatric speciation C. Morphological speciation D. Physiological speciationarrow_forwardThe word “theory” in theory of evolution is best replaced by ________. a. fact b. hypothesis c. idea d. alternate explanationarrow_forward
- The _________________ model proposes that modern humans are the most recent morphological form in a species that has been around for nearly 2 million years. a. Multiregional Evolution (MRE) b. Multiple Dispersal (MD) c. Recent African Origin (RAO) d. Recent African Origin-HYbrid(RAO-H)arrow_forwardYou are studying the evolution of a trait in two species of snakes where both species can flatten themselves so that they can glide from tree to tree. You know that this trait is not present in the ancestor of all snakes. With this information, is the trait a homology? a. Yes b. No c. Only in one of the species. d. Not enough information to tell.arrow_forwardBoth raccoons and monkeys have front feet/hands with long fingers that enable them to grasp and manipulate objects. The fact that their 'hands' contain the same bones and muscles which were also present in their ancestors is an example of...? Group of answer choices A. neither B. convergent evolution C. homologyarrow_forward
- The difference between sympatric and parapatric speciation is_______ . a. parapatric speciation occurs only in velvet walking worms b. sympatric speciation requires a barrier to gene flow c. the extent of overlap in range d.reproductive isolation does not occurarrow_forwardSince 1735, the Linnaean classification system has been the basic system for all taxonomy in biology. Which statement best explains the reason for changing how organisms are classified today? A. Organisms are evolving at a faster rate than in the past B. More diverse and complex organisms are being discovered C.  There are more organisms today than there were in the past D. New information about the genetics of species is being discoveredarrow_forwardA physical barrier separates a single species, causing two separate populations to form. Over time these two populations adapt to their environments. Eventually, these two populations are no longer able to successfully reproduce with each other. This is known as __________. A. Sympatric speciation B. Allopatric speciation C. Autopatric speciation D. Parapatric speciationarrow_forward
- An octopus and an owl both have large eyes with similar structures. If their most recent common ancestor lacked eyes what is the reason for the similarity? Group of answer choices a. genetic drift b. convergent evolution c. mutation d. homology e. gene flowarrow_forwardThe _____________ hypothesis for protein variation posits that natural selection is important in maintaining variation. a. neutral mutation b. balance c. directional d. geneticarrow_forwardIlluminate Bat wing Bird wing Flying squirel wing a. Homologous c. Analogous b. Heterologous d. Vestigial 6. Which of the following is molecularlgenetic evidence for evolution? a. Embryonic human hemoglobin is different from adult human hemoglobin. b. Hemoglobin in humans can vary between different individuals. c. Human hemoglobin is more similar to chimp hemoglobin than mouse hemoglobin. d. Human hemoglobin is different from mouse hemoglobin. 个arrow_forward
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