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- Which statements about 2oom in nonadaptive traits are true? (CHECK ALL THAT APPLY) Nonadaptive traits make it less likely that an organism will survive in a particular environment Nonadaptive traits are difficult to pass from generation to generation Nonadaptive traits make it more likely that an organism will survive in a particular tions make eal world. ffect at all. environment Nonadaptive traits are easily passed from generation to generation WolverineTool making and use is a trait shared only be a few primate species on Earth. This ability is a result of a collection of structures (opposable thumbs, large brain) that allow for this function. Tool making and use would be an example of a(n) Emergent Property Structure Defining Function O Adaptation O Individual CharacteristicWhich of the following traits are more likely to become widespread in the next generation? O acquired traits that improve reproduction acquired traits that improve survival such as long neck in Giraffe inheritable traits that improve survival and reproduction albino (no pigment) in tree squirrel O wider black stripes in Zebras
- Ancient societies used knowledge that traits are heritable in domesticating animals and developing agricultural crops. What might account for the failure to recognize that the same processes operate in humans?Sometimes gene flow between populations can have negative effects, with one population receiving genes of lower fitness from another population. Which of the following below is a good case example of this observation? O Tibetian highland people interbreeding with lowland people producing children of intermediate hemoglobin proteins OInterbreeding of Texas and Florida Panthers have greater survivorship than inbred Florida Panthers O Male Townshend Warblers out compete male Hermt Warblers and mate with female Hermit Warblers O Wild steelhead interbreeding with captive steelhead produced offspring with lower relative fitnessWhich of the following statements about species-specific traits is NOT true? O They are consistent across all individuals. They are never behavioral. Most bodily organs fall into this category. They are not greatly affected by environmental inputs.
- ed to court femaigs and to defend tertory What kind of traits result from Competition Tor mates Sexually selected traits lin most species males can potentially have a huge number of offspring, but in order to realize even a fraction of their reproductive potential, they have to compete with other males (because the number of female eggs is a limiting factor, and because females evolved to be picky). Omaments on males and structures used to compete for mstes (antlers) selective pressure on males from competition with other males over females? - Behaviors such as bower construction, that are -Energeticaty expensive --Ridoulously conspiouous -Am lkely to reduce chances ofsurvival Why do males from very distant species have similar traits? Competition is costly Sexuaily selected troits Male dung beetiehorms develop at the Expense of eye site Sexual selection helps explain phenomena that do not make evolutionarysense in the context of dealing with other aspeets of the environment • Climate…The males of some bird species grow large talons on their legs to help them fight against other males for the opportunity to display their feathers on a certain branch. What phenomenon best describes the growth of larger and more effective talons? no selection at all balancing selection intrasexual selection O intersexual selectionWhich of the following is an absolute necessity for Natural Selection to work on a population? Check all that apply O Variation in the alleles and the trait-forms they produce O Sexual selection for a certain trait-form O Differential survival and reproduction of varied trait-forms Heritability of phenotypes (trait-forms)
- If female rabbits prefer longer eared males, but shorter eared males are less likely to acquire life- threatening infections of the ear, what overall pattern of selection should be observed when these processes happen together? disruptive directional stabilizing O balancingWhich of the following is NOT required in order for natural selection to occur in a population? O All of these are required for natural selection to occur O There is variation in phenotypes of individuals in the population O Individuals with some phenotypes produce more offspring than individuals with other phenotypes O Individuals in the population compete with one another for mates O Offspring inherit traits from their parentsthere are two alleles per genotype. evolutionary forces are operating on the population. O evolutionary forces are not operating on the population. In a rodent population, the size of individuals determines the size of seeds they eat. Larger seeds contain more nutrition, but only the largest individuals can handle the largest seeds. Larger individuals also require more nutrition. Currently, there is a wide distribution of both rodent and seed sizes. What event would most likely lead to disruptive selection? O Both the very large and the very small seeds become more common, while fewer intermediate-sized seeds become less common. O Both the very large and the very small seeds become less common, while fewer intermediate-sized seeds become more common. All seeds become less common, independent of size. O Larger seeds become more common, while smaller ones become less common. O Smaller seeds become more common, while larger ones become less common.