WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
5th Edition
ISBN: 9781319272531
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 11, Problem 7MC
Summary Introduction
Introduction:
In mate guarding, the female has limited access to any other mates.
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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.
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.
Answer the following questions.
1. If you want to engage in hog fattening,
which breed would you choose? Why?
2. If you intend to engage in litter
production, which breed would you
consider? Why?
3. Compare and contrast the different
mating systems in swine. If you are to
choose, which system would you prefer.
Why?
4. Describe the pre-farowing practices on
the care for pregnant sow and gilt.
Chapter 11 Solutions
WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- 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_forwardA cow with scurs and a bull with no scurs have an offspring. Thisoffspring could bea. a female with scurs or a male with scurs.b. a female with no scurs or a male with scurs.c. a female with scurs or a male with no scurs.d. a female with no scurs or a male with no scursarrow_forwardThis hypothesis assumes that among male variation in the expression of ornaments reliably signals individual differences in overall quality of the males. It predicts that choosy females will produce offspring with higher survivorship or in better condition than those of less choosy females. A. Good genes process B. Bateman's principle C. Fisher-Zahavi process D. Fisher's runaway modelarrow_forward
- 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.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_forward1. 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_forward
- 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…arrow_forwardExplain the trade-off between number of offspring and amount of parental investment per offspring. The trade-offs of parenting Parental investment expenditure of time and energy on one offspring Pros: parental investment may inorease the chances of an offspring to sunvive and reproduce w net l e Cons parental in vestmentreduces the parent's abilityb generate additional offspring Parental investmentis a limitedresource Why do males and females have different reproductive strategies? Why do males in many species employ a number-of-offspring strategy while females employ the parental investment strategy? Females are more likely to gain from parental investment: Evolution of sexual reproduction 1. The of tspring they care for have 100% c carrying their genes Divergent selection that favored two alternative reproductive strategies % chance of 2. Their gain from multiple mates is limitedbetter to nvest in parenting than in mating 1. Numberof-ofthoring sategy Individuab whose gametes are good…arrow_forward1. In the realm of biology, what is parental investment theory? Do non-present 'parents' exhibit parental investment? a. Describe the different ways/forms by which female and male sea turtles exhibit parental investment.arrow_forward
- In most mammal species, a male is _____ to provide parental carebecause his confidence of paternity is _____.a. likely; highb. unlikely; highc. likely; lowd. unlikely; lowarrow_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 these situations offers the lowest “opportunity for selection” for males? A. Females choose mates with a fancy ornament. B. Every female chooses one male to mate with for life. C. Locations that females need access to in order to reproduce are rare. D. Males fight each other for access to groups of females.arrow_forward
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