29 Questions
What is the primary evolutionary advantage of siblicide among blue-footed boobies, according to the passage?
It allows the parents to selectively allocate resources to the offspring with the best chance of reproducing, through manipulating hormone content in eggs.
Which of the following is a key evolutionary implication of infanticide, as discussed in the passage?
Infanticide allows the perpetrator to eliminate potential rivals, increasing their own reproductive success.
According to the passage, what is the primary reason that male leopards and chacma baboons engage in infanticide?
To eliminate potential competitors for resources within their territory.
What is the main difference between siblicide and infanticide, as discussed in the passage?
Siblicide occurs between siblings, while infanticide involves the killing of unrelated infants.
How do the evolutionary implications of siblicide and infanticide, as described in the passage, differ?
Siblicide ensures the survival of the fittest offspring, while infanticide reduces the overall fitness of the population.
Which of the following is a key similarity between the evolutionary implications of siblicide and infanticide, as discussed in the passage?
Both behaviors are the result of competition for limited resources within the population.
Which of the following statements accurately describes the difference between obligate and facultative siblicide?
Obligate siblicide is almost always present, while facultative siblicide occurs based on environmental conditions.
What is the primary evolutionary purpose of infanticide, according to the text?
The text does not explicitly mention the evolutionary purpose of infanticide.
According to the parent-offspring conflict theory, how does the genetic relatedness between parents and offspring differ?
Parents are 50% related to each offspring, while offspring are 100% related to themselves.
What is the definition of parental investment, according to the text?
Any investment made by a parent in an individual offspring that decreases the parent's ability to invest in other offspring, while simultaneously increasing the selected offspring's chance of survival.
Based on the information provided, which statement best explains the potential conflict of interest between parents and offspring?
Parents are equally related to all offspring, while offspring are more related to themselves than to their siblings.
Which of the following statements is true about the concept of parent-offspring conflict, based on the information provided?
It arises from differences in optimal parental investment from the perspective of both parents and offspring.
Which of the following is NOT a reason for infanticide in certain animal species?
Establishing dominance over a rival group
Siblicide can be classified into which two categories?
Obligate and facultative
Which of the following is an example of a species that exhibits brood parasitism?
Cuckoos
What is the term used to describe the killing of offspring by a male member of a species?
Infanticide
Which of the following hypotheses could explain the persistence of brood parasitism?
Host-parasite coevolution theory
In the context of sibling rivalry, what is the term used to describe the situation where one offspring kills another?
Siblicide
Which of the following is a key factor that can contribute to female infanticide in various species?
All of the above
In the context of wattled jacanas, what is the unique role reversal observed regarding infanticide?
Larger females defend territories and kill male offspring of other females
What is the proposed evolutionary implication of infanticide pressure on the development of wild primates, such as colobus monkeys?
It accelerates infant development
Which of the following statements is NOT true regarding the examples of infanticide provided in the text?
Infanticide is exclusively perpetrated by males in all species
Based on the information provided, which of the following statements is true regarding sibling rivalry and siblicide?
Sibling rivalry and siblicide are implied in the context of infanticide
In the context of reproductive competition, what is the potential evolutionary advantage of infanticide?
Both A and B
What is the primary reason behind the occasional adoption behavior observed in gulls?
Gulls experience low selection pressure against occasional adoption, despite the cost to their own young.
Which of the following is an example of a brood parasite mentioned in the text?
Cuckoos
How do brood parasites like the European cuckoo use mimicry as a strategy against their hosts?
They mimic the appearance of predators like sparrowhawks to intimidate and distract the host birds.
What is the central evolutionary mechanism driving the arms race between brood parasites and their hosts?
Reciprocal selection pressures, where hosts evolve defenses and parasites evolve counter-adaptations.
How do differences in incubation periods between brood parasites and their hosts impact the evolutionary dynamics of their relationship?
Differences in incubation periods allow the parasite's chicks to hatch earlier and monopolize the host's resources.
Test your knowledge on topics related to the adaptive significance of sibling rivalry, siblicide, infanticide, and parent-offspring conflicts among bluefooted boobies. Explore concepts such as hormone manipulation in eggs and resource allocation strategies in bird families.
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