Which mating system is associated with sexual dimorphism, bachelor groups, and infanticide committed by outsiders? polygyny polygynandry monogamy polyandry
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Which mating system is associated with sexual dimorphism, bachelor groups, and infanticide committed by outsiders?
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- Why mating system is associated with monomorphism, extensive paternal care, nuclear family groups, and pair-living residency? monogamy polygyny polyandry polygynandryWhich of the following observations is NOT an example of intra-sexual competition? Killing young individuals who are not oneâ s own offspring Guarding harem one has secured Having a specialized penile morphology that can displace other malesâ sperms Having a showy display to attract a mateIn a species that has a monogamous mating system, which situations is most likely regarding the lifetime reproductive potential of males and females? they are similar it is much higher in males than in females it is much higher in females than in males there is no consistent pattern in this type of mating system 9:24 PM 11/29/2020
- Which of the following observations is NOT an example of intra-sexual competition? Killing young individuals who are not one s own offspring Guarding harem one has secured Having a specialized penile morphology that can displace other malesâ sperms Having a showy display to attract a mateprovide a paragraph on sexual dimorphism. discuss why some species have pronounced dimorphism, and others dont. relate to roughgardens's discussion of gender roles and parental care. Include specific examplesWhich of the following IS TRUE about sexual dimorphism (choose all that apply)? Group of answer choices it refers to morphological differences between the sexes it refers to the principles of selecting reproductive partners No answer text provided. in represents a form of intraspecific variation
- What is Bateman's principle? Bateman's principle Lots of sperm Feweggs Sperm must compete over eggs Vria iepaduivesc ie mudigae in males tan in female The vane isame ete emity of sa elecion Males must compete overfemales Lots of sperm Feweggs A Terrnitoral males direct more courtship dispiays towards females that have shown up on their teritory for the first time compared to long term females companions. Males must maimce the number of mates Preferencefor "new females A single bird eggmay constitute 15-20% of female's body mass Lots of sperm Few eggs Females must maimize reproductive success per egg CS Scanned with CamScannerWhy is long-term parental care not associated with having many offspring during a reproductive episode?12 13 14 15 16 17 18 19 20 QUESTION 9 Under what circumstances does a one male polygynous group become a multi-male polygynous group? O 1. When neigborhing polyandric groups threaten the male's masculinity O 2. When females enter Estrus at the same time O 3. When the group's population of females and children gets too large for one male to defend by himself O 4. When primates are put in semi-free ranging environments O 5. When females born in the group move out of the group due to philopatric structures QUESTION 10 True or false: In monogamous groups the males and females may have more than one mating partner O 1. False O2. True Click Save and Submit to save and submit. Click Save All Answers to save all answers. hp f9 f8 f6 10 t7 1- 1O 米 %24 4 & 7 8 6. CO 近 %23
- Explain 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…Which of the following is NOT an example of sexual selection in the wild? * Peacocks showing off bright feathers to attract the peahens. Newts camouflaging in their environment so predators can't see them. Frogs singing loud songs to attract a mate. Rams butting heads and fighting to gain access to the females. INTL O 4:32 novo N42 Touch 4. %23 24 & backspace 4. 7 8 e r y ab f k enter shift C V alt ctrl altPer several primatological studies, the reason behind infanticide appears to be: aSuper aggression in males bIt is caused by pathological behavior cIt helps improve reproductive fitness dPost-partum depression in females