Biology: The Unity and Diversity of Life (Looseleaf)
15th Edition
ISBN: 9781337408417
Author: STARR
Publisher: CENGAGE L
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Chapter 17, Problem 15SQ
Match the evolution concepts.
| ____ | gene flow | a. outcome can be interdependence |
| ____ | sexual selection | b. changes in a population’s allele frequencies due to chance alone |
| ____ | extinct | c. alleles enter or leave a population |
| ____ | genetic drift | d. adaptive traits make their bearers better at securing mates. |
| ____ | coevolution | e. no more living members |
| ____ | adaptive radiation | f. burst or divergences from one lineage into many |
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1. ____ occurs when allele frequencies change over generation due to random chance.
a. extinction
b. gene flow
c. natural selection
d. mutation
Evidence that populations change in characteristics over time includes ___.
a.
Guppies transferred from ponds with predators to ponds without predators became more brightly colored
b.
drug resistance in bacterial diseases like tuberculosis becoming more common
c.
fruit flies in jars with alcohol in the food will increase in fast alcohol dehydrogenase alleles after a few generations
d.
Cholera outbreaks became more deadly after the industrial revolution when people started to live in crowded cities
e.
all of the above are examples of evolution
match the following:
______ Adaptation a. random change in allele frequencies in a population
______ Mutation b. trait that allows an organism to survive in their environment
______ Genetic Drift c. Surviving members have different allele frequencies
______ Founder Effect d. Variation, competition and adaptation are necessary
______ Population Bottleneck e. change in a base pair of DNA that may affect an individual’s fitness
______ Natural Selection f. Founding members of a population having unique allele frequencies
Chapter 17 Solutions
Biology: The Unity and Diversity of Life (Looseleaf)
Ch. 17 - Prob. 1DAACh. 17 - Prob. 2DAACh. 17 - Prob. 3DAACh. 17 - Prob. 4DAACh. 17 - Prob. 1SQCh. 17 - A neutral mutation _______ . a. has a pH of 7.0 b....Ch. 17 - Change in allele frequency of a population is...Ch. 17 - A wild population of pea plants has two alleles...Ch. 17 - Which of the following is not part of how we...Ch. 17 - Prob. 6SQ
Ch. 17 - The persistence of sickle-cell anemia in a...Ch. 17 - ___ tends to keep populations of a species similar...Ch. 17 - Which is required for a population to evolve? a....Ch. 17 - Prob. 10SQCh. 17 - After fire devastates all of the trees in a wide...Ch. 17 - True or false? Inbreeding can increase the...Ch. 17 - The difference between sympatric and parapatric...Ch. 17 - Prob. 14SQCh. 17 - Match the evolution concepts. ____ gene flow a....Ch. 17 - Species have traditionally been characterized as...Ch. 17 - Rama the cama, a llama-camel hybrid, was born in...Ch. 17 - Two species or antelope, one from Africa, the...Ch. 17 - Prob. 4CTCh. 17 - About 70 percent of flowering plants are...
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- Mutation (a) leads to adaptive evolutionary change (b) adds to the genetic variation of a population (c) is the result of genetic drift (d) almost always benefits the organism (e) a and barrow_forward____tends to keep populations of a species similar to one another. a. Genetic drift c. Mutation b. Gene flow d. Natural selectionarrow_forwardIn many bird species, sex is preceded by a courtship dance. If a male’s dance is unrecognized by the female, she will not mate with him. This is an example of______ . a. sexual selection c. reproductive isolation b. behavioral isolation d. all of the abovearrow_forward
- Natural selection causes things to increase in frequency if they are good for _______. a. the species b. the population c. the individual d. the allele e. all of the above at the same timearrow_forward______is the original source of new alleles. a. Mutation c. Gene flow b. Natural selection d. Genetic driftarrow_forwardYou are a conservationist observing the Santa Cruz kangaroo rate. This keystone species is found on only one island in the Santa Cruz island, and your organization has tagged every wild individual on the island. Which of the following medhanisms evolution would likley NOT have an impact on the evolution of the Santa Cruz kangaroo rat? O a. Genetic drift O b. Mutation O c. Assortative mating (sexual selection) d. Natural selection O e. Gene flowarrow_forward
- If a populations allele and genotype frequencies remain constant from generation to generation, (a) the population is undergoing evolutionary change (b) the population is said to be at genetic equilibrium (c) microevolution has taken place (d) directional selection is occurring, but only for a few generations (e) genetic drift is a significant evolutionary forcearrow_forwardwhich of these is not a central rule of natural selection a, fitness to the general health and strength of an organism b, natural selection can only act on traits that affect reproduction c, natural selection can't occur without population variation d, a trait must be inherited if natural selection is to act on itarrow_forward_________ increases the similarities between the gene pools of two populations. A. natural selection B. genetic drift C. mutation D. gene flow E. population bottleneckarrow_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_forwardIn what situation would the allele frequency of a population NOT change? A. when individuals move into or out of an environment B. when there is no evolution C. when mutations create new alleles D. when individuals choose their mates P3-2022 International Academy of Science. All Rights Reserved. O H 4+ 144 88°F Mostly sunny 441 12 +arrow_forwardPopulation A varies from population B. A toxonomist should designate them as separate species if _________. A. They are geographically isolated B. They differ in appearance C. They do not interbreed when the opportunity arises D. Gene flow has been observed E. All of these are correctarrow_forward
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