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.
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- Make guarding is a reproductive tactic that functions to directly:  A. Increase the number of males to which a male has access. B. Reduce the males paternity uncertainty. C. Increase male reproductive output. D. Reduce the females fitness.  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.Explain 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.
- Male California sea lion mating success is determined by the number of mates they can acquire. Larger males are more successful at maintain larger territories. Females remain in one territory for the duration of the mating season and larger territories support more females than smaller territories. Additionally, the most successful males will fast during mating season to remain present in their territory at all times. If they leave to hunt they risk loss of their territory and access to all the females present in it. Which of the following best describes sexual selection in this species? a. Males likely engage in male-male combat to maintain territories. b. Intersexual selection is likely stronger than intrasexual selection. c. Sexual selection on the females is stronger than on the males. d. Females will mate with smaller males at a higher frequency than larger malesPolygyny is a common mating system in nature. Which one of the following scenarios is LEAST likely to result in a polygynous mating system? Male stalk-eyed flies form leks where receptive females come visit Male Neotropical giant damselfly defend water-filled tree holes, which are the oviposition sites for females. Suitable tree holes for oviposition are rare and females must mate with the resident male in exchange for access to the oviposition sites. Male Bengal tigers defend large territories that contain food sources. Female Bengal tigers visit male territories to mate. The density of the Bengal tiger is extremely low that male tigers rarely encounter more than one female in their lifetime. In the bumblebee-wolf Philanthus bicinctus, females are unreceptive until they finish constructing the long underground burrow as nest sites. Males search for locations containing a number of newly constructed burrows and attempt to control these sites against the intruders. Your cousin Peter…Male honey bees (Apis mellifera) die when they mate for the first and only time, achieving suicidal monogamy when their genitalia are donated to the female. Try to explain the male’s suicidal mating behavior in light of the alternative hypotheses for male monogamy. What predictions follow from these different explanations? What data are required to resolve the issue?
- 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.Regarding mating behavior, choose the false statement from the list: Some aspects of courtship behavior may have evolved from agonistic interactions. Courtship interactions ensure that the participating individuals are nonthreatening and of the proper species, sex, and physiological condition for mating. The mating relationship in most mammals is monogamous, to ensure the reproductive success of the pair. Polygamous relationships most often involve a single male and many females, but in some species this is reversed. Salmon swimming against the stream to lay eggs is an example of taxis. tropism. kinesis. cognitive mapping spatial learning Female Apanteles wasps lay their eggs in caterpillars of the genus Pieris. The site of the caterpillar initiates the egg laying behavior. This is an example of a fixed action pattern. problem solving behavior. habituation.…Which of the following statements is NOT the reason why females are choosy? By being choosy, she can acquire advantageous genotypes for her offspring from her mates. By being choosy, she can acquire resource for her offspring from her mates. By being choosy, she can ensure that her male offspring can attract more females as well. Her seeming choosiness is a by-product of her stereotypical behaviors exploited by the males for mating gains. All listed above are reasons why she is choosy
- The brightness of color in male Blue-footed boobies correlates with higher mating success. Why is the color of the feet considered an ‘honest signal’?A 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.A 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.