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- A change in structure, behavior, or physiology that enhances survival, and reproductive success in a particular environment is called _________. Genetic drift Mimcry Adaptation Gene flowAdaptation can best be described as A. The change in the genetic characteristics of a population of organisms over time B. Evolutionary changes on a large scale C. Gives us Genotype frequency of a population that is not evolving D. Any feature of the organism that leads to improvement in performance in the environmentMatch the description with the correct term.A. the idea that inherent variation in a population allows for certain traits to be selected and carried on to future generations of the population experiencing an environmental pressureB.organisms that do not have a common ancestry but develop body parts that perform the same functionC. a model suggesting the gradual change of a species to form distinct speciesD. the idea that all living things on Earth share a common ancestorE. a common ancestor adapts and results in various speciesF. two populations become reproductively isolated (can no longer reproduce successfully)1.speciation 2. adaptive radiation 3. analogous structures 4.theory of evolution 5. gradualism 6. theory of natural selection
- Modern humans over-eat sugar because we love it so much. One might ask, “why are we designed by evolution to love sugar when sugar is so bad for us?” How does the concept of the “environment of evolutionary adaptation” (EEA) help us explain this and some otherwise puzzling behaviors of modern humans? Please explain EEA first.Your friend remarks, "The giraffe stretched its neck while reaching for higher leaves; as a result, its offspring inherited longer necks” Which statement is the best response to correct your friend’s misconception? Group of answer choices Overproduction of offspring leads to a struggle for survival. Disuse of an organ may lead to its eventual disappearance. Characteristics acquired during an organism's life are generally not passed on through genes to its offspring. Only favorable adaptations have survival value.Phenotypic plasticity is the ability of an individual organism to express two or more genetically controlled phenotypes in response to environmental variation. Give an example and give some reasons why organisms depend on phenotypic plasticity instead of maintaining all their systems in a maximum sate of readiness at all times.
- What is the relationship between changes in gene frequencies and adaptations? The change in genes results in adaptations, which in turn, lead to the individual's ability to survive in its environment. The change in genes reduces adaptations, limiting the individual's ability to adapt for survival. The change in genes speeds up the process of adaptations, and the result is adaptations within any species will occur within a year. The change in genes results in adaptations in the individual, but these adaptations cannot be passed on to future generations.Which statement is least relevant when examining traits considered as adaptations? A. Not every trait or use of a trait in an organism ia an adaptation. B. Mutations can result in maladaptive traits. C. Differences for a trait among populations or species are not always adapative D. Not every adaptation is perfect or unflawed.a. Define in its broadest meaning the study of Evolutionary Biologyb. Enumerate and discuss the fundamental principles of Evolutionary Biology.c. Give the mechanism of Natural Selection.
- All evolutionary changes that allow a species to change in response to the environment are originally a result of A) beneficial DNA mutations. Eliminate B) movement to new environments where survival is easier. C) cross-breeding with other species of closely related organisms. D) adaptations that organisms make to the environment during their lifetimes. Not GradedAlthough genetic variation is required for species to adapt tochanges in their environment, most genetic changes are detrimental. Explain why genetic mutations are rarely beneficial.1. Explain how all 4 of the evolutionary aspects (mutation, gene flow,selection, and genetic drift) affect/have affected dogs for better or worse in present time ( or past time if relevant). Provide specific examples. 2. Explain how all 4 of the ecological interaction (mutualism, competition, predation, parasitism) affect/have affected dogs. Provide specifiv examples. Thank you