BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 17, Problem 4SA
Summary Introduction
Introduction:
Sexual selection is one of the cases of natural selection that is seen in sexually reproducing organisms where an organism is capable of choosing a partner (of the opposite sex) with whom it can go for mating and produce offsprings.
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Bateman (1948) and Trivers (1972) came to the conclusion that sexual selection is typically a more potent evolutionary mechanism in males than females because typically…
a.
Females are likely to combat each other for mates
b.
Male limitations to reproductive success is gamete production
c.
Males typically participate in more parental care than females
d.
Females invest substantially more energy than males in gamete
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
An inguinal hernia results from ___
a.
testes that move out of the body where they develop like they do in fish
b.
disks between vertebrae slipping when backbone alignment is off
c.
the downward pressure on arteries unique to bipedal primates
d.
failing valves in veins returning blood to the heart of bipedal primates
e.
a sex-linked recessive allele that was carried by female descendants of Queen Victoria
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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- Of the following, which is the least plausible hypothesis for why natural selection has not eliminated genes for male homosexuality? a. Perhaps the relatives of a homosexual male have more than an average number of children. b. Homosexual people might spread their genes by helping their brothers and sisters rear their children. c. Maybe there is no gene for homosexuality. Instead, an environmental event produces an epigenetic effect that can be transmitted from one generation to the next. d. Some homosexual men have children.arrow_forwardRate of evolution by selection is highest for an allele when it is _________ . a. wild type b. recessive c. dominant d. co-dominantarrow_forwardGENETICS #1arrow_forward
- Which of the following individuals would be considered to have the greatest evolutionary fitness? a. Olympic speed skater with one child b. an overweight person with three children c. a woman who had six children, none of whom (the children) survived to adulthood d. a single mom who adopted eight childrenarrow_forwardThis diagram illustrates a type of reproductive process in an organism. Parent Offspring A Based on this information, what conclusion about the offspring labeled "A" is supported? O It has acquired traits in response to its environment. O It has a lower mass of genetic material than offspring B. O It has the same genetic material as its parent. O It has half as much genetic material as its parent. INTL 01 https://student.masteryconnect.com/#arrow_forwardLamarck's theory of inheritance of acquired characteristics did NOT include which of the following ideas? Select one: a. The environment plays a role in selecting favourable characteristics b. Physical characteristics acquired during a lifetime can not be passed to offspring c. Organisms can change during their own lifetime d. Physical activities can change organisms O O Oarrow_forward
- Which of the following statements is an evolutionary advantage of sex and sexual reproduction? A. Sex and recombination results in decreased genetic variation in a population and maintains advantageous traits. B. Sex and recombination can bring beneficial alleles together when producing offspring. C. Sex and recombination results in the inheritance of all the genetic information available from both parents. D. Reproduction is less risky when gametes from two individuals must fuse.arrow_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_forwardIntentionally breeding dogs for favorable traits to express in their offspring is an example of ___________ selection. Group of answer choices A-sexual B-artificial C-domestic D-natural E-biologicalarrow_forward
- Eusociality and haplo-diploidy, in ants and bees, are often (though not always) correlated because… Group of answer choices: A. having twice as many genes allows queens to be far more capable of controlling other individuals. B. being able to control the sex of offspring allows parents to regulate the amount of cooperation. C. a worker can have more of her genes passed on in a new sister than in an offspring of her own. D. males have fathers but females don’t. E. it allows high levels of inbreeding to evolve without negative effects.arrow_forwardThe twofold cost of sex model by John Mynard Smith explains how - A. asexual females can become predominant in a population. B. anisogamy results in sexual reproduction. C. sexual individuals can produce genetically variant offspring. D. asexual females invest as much in offspring as the sexual females.arrow_forwardWhich of the following is false regarding artificial selection? B. Artificial selection is responsible for creating new varieties of plants and animals D. Many if not most organisms created through artificial selection could not survive without humans E. None of the above---all are true statements A. Darwin's understanding of artificial selection helped him arrive at his theory of evolution by natural selection C. Artificial selection is caused through the process of selective breedingarrow_forward
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