Evolution Basics Which of the following things are likely to cause evolution in a population? Try to keep all causes of evolution in mind. The thickness in fur coat for particular small mammal is determined by the average temperature in its environment. Over time, the environment gets warmer. A mutation introduces a new wing color in a group of butterflies. A flood washes away 3/4 of a population of ground squirrels. Individuals migrate between 2 populations that have the same gene pool. Within a lizard population, there is genetic variation in the length of the tail. The neighborhood cats chase the lizaards, and have an easier time catching the ones with long tails. O 0OO0

Evolution Basics Which of the following things are likely to cause evolution in a population? Try to keep all causes of evolution in mind. The thickness in fur coat for particular small mammal is determined by the average temperature in its environment. Over time, the environment gets warmer. A mutation introduces a new wing color in a group of butterflies. A flood washes away 3/4 of a population of ground squirrels. Individuals migrate between 2 populations that have the same gene pool. Within a lizard population, there is genetic variation in the length of the tail. The neighborhood cats chase the lizaards, and have an easier time catching the ones with long tails. O 0OO0

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter18: Introduction To Darwinian Evolution

Section: Chapter Questions

Problem 14TYU: EVOLUTION LINK Write short paragraphs explaining each of the following statements: (a) Natural...

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Evolution by natural selection is founded on what basic idea? Random genetic mutations that help a species survive will be more likely to be passed to future generations. Only traits that will help an individual organism survive will be passed down to future generations. Only the biggest, strongest, fastest, or smartest creatures survive. Traits that animals acquire over their life will be taught to future generations.
. The Process of Evolution by Natural Selection – Be able to explain the process of evolution by natural selection as it applies to a specific living thing using the outline below: Natural variations caused by random mutations (adaptations) in DNA exist within populations. Those with helpful adaptations survive an environmental change (maybe a predator.) The survivors breed, passing on the inherited mutation (adaptation) to offspring. The resulting population has more of the successful inherited mutation (adaptation) than the original population. Phylogenetic Trees Infer evolutionary relationships of living things by interpreting phylogenetic trees. Know the divisions of hierarchical classification. (DKPCOFGS) c. Differentiate between homologous and analogous (caused by convergent evolution) structures
EVOLUTION LINK Write short paragraphs explaining each of the following statements: (a) Natural selection chooses from among the individuals in a population those most suited to current environmental conditions. It does not guarantee survival under future conditions. (b) Individuals do not evolve, but populations do. (c) The organisms that exist today do so because their ancestors had traits that allowed them and their offspring to thrive. (d) At the molecular level, evolution can take place by the replacement of one nucleotide by another. (e) Evolution is said to have occurred within a population when measurable genetic changes are detected.
In a population of lizards, half of the individuals are yellow and half are blue. Color is genetically determined. Which of the following scenarios could result in evolution by genetic drift? A disease indiscriminately reduces the population by 90%. Females preferentially mate with blue individuals. Yellow individuals from a nearby population join the population. Birds are better able to see and therefor prey on blue lizards.
Lamarck was an early naturalist who published his own ideas about species changing over time. He, however was mistaken about one critical aspect of evolution. If you could travel back in time what advice would you give Lamarck to correct his misunderstanding? Tell him that species actually do change and evolve over time Tell him that traits acquired during an organisms life are not passed on to offspring Tell him that artificial selection does not lead to new varieties of plants and animals Tell him that characteristics are heritable: Parents do pass on their characteristics to their offspring
Why does evolution matter now? List 5 facts of one of the events in the evolution timeline. Focus on what was discovered, how the evidence was found and when scientists learned about these facts.
The concept of evolution has always been connected with some notion of progress–natural selection pushing populations toward better and better adaptations to create "perfect organisms." How would you argue that evolution does not craft perfect organisms?
What causes variation among a population of living things and How can variation in one generation influence the next generation? Is the variation in a population will be examined as the “raw material” upon which natural selection acts. Why are there so many different kinds of living things? Comparing species that exist today reveals a lot about their relationships to one another and provides evidence of common origins. This session explores the theory of evolution: change in species over time.
Genetic variation is evident. The variation in your community is simple evidence of understanding the basics of evolution. How does this imply the existence of evolution? Does this mean that some humans are more evolved than others?
What is the relationship between natural selection and evolution? Evolution and natural selection have no relationship. Evolution and natural selection work against each other. Evolution is influenced by natural selection. Natural selection is the process by which organisms become better adapted to their environment. Over time, the species evolves and passes on these survival traits. Evolution and natural selection only apply to plants and the changes they make over time. Animals and humans are not affected by evolution and natural selection. Evolution and natural selection are the processes that inhibit a species from passing on survival traits from generation to generation.
Which of the following statements about the forces that drive evolution is TRUE? Unlike the other evolutionary forces, natural selection is the only force that improves the match between the organism and its environment. Unlike the other evolutionary forces, gene flow is the only force that causes populations to become more different. Unlike the other evolutionary forces, mutation is the only force that decreases genetic variability. Unlike the other evolutionary forces, nonrandom mating is the only force that changes allele frequency.
Why are fruit flies good subjects with which to observe the process of evolution through natural selection? Fruit flies are good subjects because they have very long generations, and scientists can control their development over long periods of time. Fruit flies are good subjects because they have short generations and scientists can control their development in the lab. Fruit flies change into different species of flies each generation, so they have more features to study. Fruit flies are K-strategists, and these are easier to study over short periods of time.