Consider a species in which females are more likely to breed and have successful offspring than males.In this case females are twice as likely as likely to breed. How many brothers would you have to help in order to get the same indirect benefit from helping three sisters?

Q: Earlier explanations of altruistic behavior as a form of group selec-tion have been supplanted by…

A: Introduction  Altruistic behaviour: it is the notion that the lives of others is equally, if not…

Q: Satellite and attached male horseshoe crabs do not have the same reproductive success. Why hasn’t…

A: Satellite male These are the male that waits near male to intercept females lured to the other…

Q: When the fitness increment of increased male function results in a small cost in fitness of female…

A: Hermaphrodites are organisms that possess both female and male sex organs and can produce male…

Q: What is the selective factor, or selective environment, in the case of sexual selection, that allows…

A: Natural selection types: The distribution of phenotypes within a population can be affected by…

Q: Eusociality and haplo-diploidy, in ants and bees, are often (though not always) correlated because……

A: The correct answer is (C):a worker can have more of her genes passed on in a new sister than in an…

Q: Birds are more likely to form pair-bonds than mammals because … Group of answer choices: A. Bird…

A: Pair bond is a mating pair of male and female that serves great importance in species.

Q: Would you expect environmental conditions to influence syngamy? Design two experiments to…

A: Fertilization is the fusion of the male and female gametes to produce a zygote. The pollen grain…

Q: Check All That Apply Glow fish can't reproduce. Only males can pass on the glow trait. Glow fish can…

A: Explanation: The initial mating experiment between glowing fish discovered that glow fish can indeed…

Q: Please discuss the fitness advantage associated with aiding a related or even an unrelated…

A: Fitness refers to an organism's ability to survive and reproduce in its environment. It is a measure…

Q: some cases, males or females do care for young of their own species that are not their own, as when…

A: There may be reason that adoptions fostering helped these females reproduce later on as Regular…

Q: Which of the following statements does not support the conclusion that giraffes are k-selected…

A: The individuals of the same species that reside in a common geographical habitat make-up a…

Q: A new species is discovered in which males care for offspring after birth, and females leaves the…

A: Most of the time we saw that females care  their offspring , but sometimes both the partner involve…

Q: Which of the following statements is NOT TRUE under the Costly Signaling Theory? Group of answer…

A: Costly signalling theory is often interchangeably used with the 'Handicap principle'. CST defines…

Q: Based on the data shown in the graph, select the statements that describe what happens whenever one…

A: Often organisms reproduce to form their next generation. This reproduction depends on natural…

Q: Fireflies use light signals to locate mates. Individuals with smaller, and thus less visible, light…

A: In 1985, the construction of a highway through a firefly population's habitat introduced a…

Q: In Hamilton's rule, rB > C, the term "C" refers to   a. the number of offspring an individual…

A: In evolution the altruism is very much important for studying the behaviour of animals. The…

Q: give one species that is classified or exhibit the following: sex-role reversal show a photograph…

A: The sex role reversal is the mechanism in which  sexual selection among females is much higher than…

Q: Using the concept of inclusive fitness (and kin selection), explain how altruistic behavior (e.g.…

A: The altruism behavior of an animal is that behavior when it benefits the other animals at the cost…

Q: Give an example of a variable human trait that increases the fitness of the possessor. Give an…

A: (a) One of the variable traits that increases the fitness of the possessor is adaptation.

Q: Explain the relationship among primates between the pattern of within-group and between-group…

A: Humans, apes, monkeys, and prosimians (including lemurs, lorises, and tarsiers) are all members of…

Q: After observing a finite population of asexually reproducing salamanders, which of the following…

A: Introduction :- Mutations are the changes in genetic material of the organism and are transmissible…

Q: This hypothesis assumes that among male variation in the expression of ornaments reliably signals…

A: In this question we have to describe about female choice while selecting male for mating See Full…

Q: How does group selection theory explain the altruistic behavior of animals and why is this…

A: The first clarification bunch choice gave was that people would collaborate for the "good of the…

Q: give one species that is classified or exhibit the following: plants that use insects for…

A: Pollination by the insect depends on flower colour and sweet smell. So the plant have must a…

Q: Why are polyandrous mating systems more rare than polygynous matings? a. Only males are capable of…

A: Introduction  Reproduction is crucial for the continuation of life for any species. To continue the…

Q: give one species that is classified or exhibit the following: lekking species show a photograph of…

A: The lekking species are the species which which have a fix matting partner .

Q: A population is solely comprised of 120 A2A2 individuals.  18 A1A1 individuals migrate in and…

A: According to the Hardy-Weinberg equilibrium, the frequencies of the alleles and genotypes in a…

Q: Define selection and relate this to relative reproductive success?

A: Reproductive success is defined as the passing of genes onto the next generation in a way that they…

Q: Benefits of domestication are to allow humans to: Select one: O A. Have a steady food supply O B.…

A: Domestication of animals is the relationship between animals and humans which is different from…

Q: Based on the text for cockroaches mating: 1. Compare the genetic relationship of the parent pest and…

A: Any insects are threats because they infest human homes. Since they are usually found in waste…

Q: You are examining the impact of fish predators in a Trinidad stream on the life history traits of a…

A: Mature male size: Male Trinidadian guppies typically grow smaller when they are among predators so…

Q: Describe how courtship behavior drives sexual selection. Use the peacock as an example.

A: To understand the role of courtship behavior in sexual selection, it is important to understand the…

Q: |(A) A well trained alien biologist visiting earth would be able to tell that the mating system of…

A: Note: Since you have posted multiple questions, so we will be solving the first one for you. As per…

Q: Because modern blue tits simply don't want to have that many offspring anymore Because a nest with…

A: Answer. The frequency of the 9 clutch size is very high as depicted from the y axis because there…

Q: What are the management restriction (i.e., lights, and Molting) needed with breeder birds during…

A: Breeder birds are raised specifically for egg and meat production. Produced by fast-growing breeds…

Q: please help

A:

Q: Discuss the costs and benefits of allomothering behavior, and describe the conditions under which…

A: Allomothering behaviour when any other mother of the group continues to take care of the Infant.…

Q: Discuss examples of positive and negative assortative mating in natural populations, human…

A: Assortative mating is a kind of non-random mating. In this type of mating, sexual selection is done…

Q: What is the frequency of winged dragons? (take # winged / total dragons)

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

Q: per season and males may fertilize the eggs of multiple females. Do you think that the sea bass are…

A: Marine fishes survive and prefer mating in salty water. They may be found individually or in groups…

Q: Which of the following factors does not contribute to a J-shaped curve? a. long life span b. fast…

A: The exponential growth curve is found when the unlimited resources are found in the environment. The…

Q: Introduce the breeding history of one species.

A: Breeding is a term used to defined the process of reproduction to produce offspring, usually animals…

Q: What type of mating system developed in Round 1 without male parental involvement? Why? What type of…

A: A) Round 1: Without male parental involvement, the mating system that developed was a promiscuous…

Q: Is sexual selection or natural selection the driver for the differences between males and females?…

A: In the case of a , natural selection is the driver for difference between male and female.

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.