EBK WHAT IS LIFE? A GUIDE TO BIOLOGY
4th Edition
ISBN: 9781319159153
Author: PHELAN
Publisher: VST
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Chapter 11, Problem 6MC
Summary Introduction
Introduction:
The sex that contributes more to the care of the young will be choosy when picking a mate.
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i. Actors and recipients are characterised by increased reproductive success in mutually beneficial interactions.
ii. Actors benefit and recipients incur costs (i.e., are harmed) in selfish interactions.
iii. Actors incur costs (i.e., are harmed) and recipients benefit in altruistic interactions.
iv. Actors incur costs (i.e., are harmed) and recipients incur greater costs in spiteful interactions.v. Hamilton's rule can be used to show that an allele encoding altruistic behaviour could be favoured; spiteful behavior, however, never can evolve.
Question 1 options:
A)
Statements i, ii, and iii convey accurate information.
B)
Statements i, ii, iii, and v convey accurate information.
C)
Only statement v conveys inaccurate information.
D)
Statements ii, iii, iv, and v convey accurate information.
E)
All statements convey accurate…
Assume you are studying a lizard that is involved in males displaying to females and females choosing males to mate with. The females will raise the offspring by themselves. Which of the following benefits might females be receiving in this system?
a.
Direct benefits
b.
Indirect benefits
c.
Both a. and b.
d.
Neither a. nor b.
Direct benefits derived by choosy females in mating include the following EXCEPT -
A. Help in caring for young
B. Nesting territories.
C. Protection from injuries.
D. Having more male offspring which be chosen as future mates.
Chapter 11 Solutions
EBK WHAT IS LIFE? A GUIDE TO BIOLOGY
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- In Biology of Beauty, Cowley found that contemporaryfemales are attracted to males with broad foreheads and strong chins, and that this effect persisted across different cultures. How did Cowley explain this result? A. This is a trick question- this attraction is culturally relative B. Males compete for access to females by developing these features as a form of male-male competition C. There is no evidence that females really are differentially attracted to males with these features D. Attraction to males with these features is adaptive for females because males with these traits are usually sexually mature and have healthy immune systems E. Only some human cultures value these traits as attractive.arrow_forward#1: Elephant Seals have a polygynous mating system, in which a few males mate with many females while other males do not mate at all. Nearly all females produce one offspring per year. Assuming a 50:50 sex ratio, we would expect the average reproductive rate to be (chose one answer) a. higher in females b. the same in males and females c. higher in males d. random e. none of the abovearrow_forwardExplain why hermaphroditism is a good solution to enjoy the benefits of sex while also confronting the problem of finding a mate in a sparse population.arrow_forward
- Which of the following statements is a reason why females are usually the "choosier" sex? A. They expend fewer resources in caring for their offspring. B. They have higher potential fitness than males. C. They have fewer opportunities to contribute offspring than males. D. They directly compete with each other for mates.arrow_forwardA new species is discovered in which males care for offspring after birth, and females leaves the nest immediately. In this species, males are likely to A. Have more offsprings overall than females. B. Have fewer offspring overall than females. C. Be promiscuous. D. Have lower parental investment.arrow_forwardA new species is discovered in which males care for offspring after birth, and females leave the nest immediately. In this species, males are likely to a. be promiscuous. b. have lower parental investment. c. have fewer offspring overall than females. d. have more offspring overall than females.arrow_forward
- Give one example each that demonstrate the following: (provide pictures). a. Aggression b. Polygyny c. Monogamy d. Polyandryarrow_forward78. Deviation from a purely monogamous mating system is likely when _________. A. resources are clumped B. one sex can successfully raise offspring on their own C. shared parental care maximizes the reproductive success of males and females D. only two of the above situations are likely to result in deviations from monogamy E. all of the above are likely to result in deviations from monogamyarrow_forwardWhichof the following statements concerning lion cooperative living is false?a.Larger coalitions are composed of unrelated males.b.Prides are composed of closely related females.c.First and second ranked males sire the majority of cubs.d.Males taking over a pride will practice infanticide.e.Female lions nurse each other’s cubs.arrow_forward
- 1. The benefit of fighting for a territory is 12 reproductive units, and the cost is 8 reproductive units. Should you be hawk or dove? b. The benefit of fighting for a territory is 12 reproductive units, and the cost is 8 reproductive units. What is your benefit if you play hawk and your opponent plays dove? Using Hawk Dove Game Theory https://www.youtube.com/watch?v=lshGV-qxJmIarrow_forwardIn a coastal marine habitat, a species of fish is found. During the breeding season, dominant males establish territories and mate with multiple females. Females deposit their eggs in nests built by the males, who provide no parental care after fertilization. What type of mating strategy is most likely exhibited here? Group of answer choices Monogamy Promiscuity Polyandry Polygynyarrow_forwardTwo male deer compete for access to a female by sparring with their antlers. What type of selection pressure is this? a Intrasexual b Intersexualarrow_forward
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