Biology: The Unity and Diversity of Life (Looseleaf)
15th Edition
ISBN: 9781337408417
Author: STARR
Publisher: CENGAGE L
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Chapter 17, Problem 10SQ
Summary Introduction
Introduction:
A process called mating system is used to explain how an individual chooses its mate. Mating is an essential process for the reproduction and growth of a population. But this process only takes place at certain criteria. When all of them come together, then only the male or female tends to mate with the opposite gender. Those factors include sexual selection, behavioral isolation, and reproductive isolation.
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Birds are more likely to form pair-bonds than mammals because …
Group of answer choices:
A. Bird reproductive physiology makes it easier to judge paternity certainty
B. Flight makes it easier to find mates
C. Bird species are unable to defend critical resources the way mammals can
D. Male mammals have higher levels of testosterone making them more likely to fight
E. Either bird parent can sit on the nest or feed chicks while the chicks are too young to fly
Sexual selection occurs whena. one sex has a higher fitness than the otherb. a species exhibits sexual dimorphismc. there is a male dominance hierarchy and only the alpha male reproduces. d. There is monogamous mating.e. A trait is favored by one sex such that individuals of the opposite sex
possessing that trait have an increased likelihood of reproducing.
Which of the following is not a reproductive barrier associated with behavioral isolation?
a
flashy feathers
b
courtship dance
c
attractive calls/songs
d
time of day
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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- Which of the following traits is more associated with an Opportunistic (Equilibrial) species? Which of the following traits is more associated with an Opportunistic (Equilibrial) species? A. Short maturation time B. Producing offspring at many different times over the course of life C. Producing a lot of eggs at one time D. High juvenile mortality E. High level of parental carearrow_forwardSexual selection frequently influences aspects of body form and can lead to_____ . a. a sexual dimorphism c. exaggerated traits b. male aggression d. all of the abovearrow_forwardIn most species, which sex is more likely to be doing the "selecting" in sexual selection? * Males Females Sign out INTL V430 novo 4. @ %23 %24 % backspace 8. e r y tab d. f j k a V b m C alt ctri altarrow_forward
- The good genes model of sexual selection is a popular hypothesis for mate choice. What is an underlying flaw with the hypothesis that must be explained? Group of answer choices A. there is no evidence for mate choice in animals B. sexual selection will remove genetic variation for fitness C.animals are not capable of a sense of beauty D. different species have different traits that are important in mate choice E. all genes confer equal fitness in lab experimentsarrow_forwardEusociality 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_forwardWhich of the following situations will lead to natural selection? a. The seeds of two plants land near each other and one grows larger than the other. b. Two types of fish eat the same kind of food, and one is better able to gather food than the other. c. Male lions compete for the right to mate with females, with only one possible winner. d. all of the abovearrow_forward
- Which of the following statements does not support the conclusion that giraffes are k-selected species? a. Giraffes are approximately 6’ tall and weigh 150 lbs at birth. b. Wild giraffes begin mating at 6-7 years of age. c. Newborn giraffes are capable of coordinated walking within an hour of birth, and running within 24 hours of birth. d. Giraffes rarely give birth to twins.arrow_forwardBehavioral isolation is considered which type of reproductive barrier? a prezygotic b postzygotic c overlapping d heritablearrow_forwardWhich of the following are post-zygotic reproductive barriers?a. Different mating songs prevent mate recognitionb. Species A breeds in Spring, Species B breeds in summerc. Species A and B mate, but the embryos die before hatchingd. The gametes of species A aren’t compatible with the gametes of species Be. Species A and B can mate and produce healthy offspring, but the offspring are infertilearrow_forward
- Which of the following is an example of postzygotic reproductive isolation?a. Sperm of species A dies in the oviduct of species B before fertilization can take place.b. Hybrid zygotes between species A and B are spontaneously aborted early indevelopment.c. The mating seasons of species A and B do not overlap.d. Males of species A are not attracted to the pheromones produced by the females ofspecies B.arrow_forwardIs sexual selection or natural selection the driver for the differences between males and females? a. In the hollyhock weevil (Rhopalapion longirostre) the females a have much longer rostrum. The length of rostrum is correlated with offspring survival but not mating frequency. b. In the marine iguana species (Amblyrhynchus cristatus) on the islands near Ecuador the males often exceed expected size on a given island. Male size is correlated with survival and number of mating events.arrow_forwardIn dioecious plants, males usually produce larger flowers that attract more pollinators than do females. This is an example of a. character displacement b. sexual selection through female choice c. sexual selection through male-male competition d. divergence in resource use e. a cost of reproductionarrow_forward
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