Is the evolution of behavioral traits versus other traits, like morphological trait, likely to be different? Explain in details why the answer may be yes or no.
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Is the evolution of behavioral traits versus other traits, like morphological trait, likely to be different? Explain in details why the answer may be yes or no.
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- Why are behavioral traits nearly always multifactorial?Apply the VIDA table to the evolution of sickle cell disease to justify whether it is an instance of evolution by natural selection. Answer the following questions. Is there variation in this trait in the population? How exactly does it vary? Is the trait at least partly inherited? Is there selection for this trait in a particular environment? (What is the selective pressure? And how does a trait give an advantage or disadvantage in that environment?) What is the evidence that this trait makes organisms better adapted to their environment?In order for a trait to evolve via natural selection, which of the following must be true regarding the trait? (this is a multiple answer question - so select all correct) Group of answer choices There must be variation in the trait. The trait must make the organism survive longer than organisms with different traits. The trait must confer a reproductive advantage on the bearer of the trait. The trait must be heritable. The trait does not necessarily need to be passed down to offspring.
- When discussing natural selection and behaviour, we often say that members of a species have certain behavioural traits because those traits are adaptive, in the sense that they increase inclusive fitness relative to alternative forms of those traits that have existed in the past. Instead of emphasizing the adaptiveness of behavioural traits, some biologists describe natural selection as a process that operates on nervous system traits, increasing the prevalence within a population of particular patterns of neural circuitry and neurobiological mechanisms. As an alternative to emphasizing either the behaviour or the nervous system, some biologists describe natural selection as a process that operates on genes; according to this perspective, certain forms of certain genes (ie., particular alleles) increase in prevalence within a population relative to alternative forms of those genes. Which, if any, of these three perspectives on natural selection and behaviour do you think is the most…Which of the following traits would you expect to be under weakest selection? Explain your answer. The development of prostate cancer in older male humans The development of digits in frogs The silver hair color on silver back male gorillas The dance choreography in peacock spidersGiven the chart below, is evolution occurring on the given trait? Hint: Revisit the Hardy-Weinberg equilibrium lecture. Group of answer choices Yes, evolution is occurring. Cannot be determined based on the given information. No, evolution is not occurring and the trait exists in a state of Hardy-Weinberg equilibrium.
- Darwin was the first person to note that evolutionary outcomes are probabilistic, meaning that they depend on the likelihood of outcomes rather than on certainties. Explain what this means in the context of Darwin’s theory of how evolution occurs? That is, how is Darwin’s theory is dependent upon the chances of a certain outcome and not on the absolute certainty of any particular outcome?Which of the following is NOT a valid evolutionary explanation for why aging (or senescence) happens? Selected answer will be automatically saved. For keyboard navigation, press up/down arrow keys to select an answer. a b с d Alleles that reduce survival late in life, after most individuals have reproduced, will have a smaller effect on fitness than alleles that affect survival or reproduction early in life. Alleles that affect survival or reproduction early in life will have a smaller effect on fitness than alleles that reduce survival late in life. Alleles that increase reproductive rates early in life sometimes have trade-offs that reduce later survival. 2 Many deaths of younger individuals are due to causes unrelated to life history such as predation, reducing the effects that aging has on fitness.Why are some types of traits are highly heritable and other types of traits are not as highly heritable? Some traits are morphology, life history, behavior, and physiology.
- Background: In class we did a project about m and m’s and there ability to evolve and natural selection. (Yes I know they can’t actually evolve it was just used as a example in class) however I can’t figure out this question. Occasionally a mutant may occur and produce a candy that is misshapen or Pointier or flatter than the rest. Often this proves to be a weakness, but a rare mutation may confer extra M&M durability. Other mutations in M&Ms could occur ( like ones that result in a new color). A mutant un you population represents a new _________. What goes in the blankWhich of the following statements about the grandmother hypothesis is correct? This is a hypothesis used to explain why grandmothers tend to live longer than grandfathers. For this hypothesis to work, a grandmother will need to have an antagonistic pleiotropic mutation that extends her lifespan but also lessens her physical activities. Because grandmothers are older, so they tend to contribute less in a family. That is, grandmothers are usually a drain of resources for a family. The evolution of monthly menstrual cycle in human females is seen as an example explained by the grandmother hypothesis. None of the aboveWhich of the following are supported explanations for the evolution of complex traits? A) incremental changes each providing a benefit B) a trait origiannly selected for a specfic function adopts a new function as a consequence of selection