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Q: fitness is, mostly correctly, a technical term, What does it mean in evolution?
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Q: what does fitness mean in evolution
A: Evolution is defined as the change in genetic makeup of a particular population over generations.
Q: why do you think people need a transformation or evolution to adapt to his environment?
A: Living beings make the biotic components of their habitats.
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Q: Evolutionary change occurs at the level of the individual ?true or false
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Q: What must be true about the population in order for evolution by natural selection to take place?…
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Q: we lived in a world without mutation, then we will not have evolution. 1)True 2)False
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- What do you think will happen to human population in the future. Will we evolve? Why or why not.
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- Some scientists say that modern medicine and better sanitation are slowing down or altering the course of human evolution in highly developed countries today. As a result, evolution in humans today has gone from survival of the fittest to survival of almost everyone. Do you think that this idea is valid? Why or why not?In which population is evolution by natural selection most clearly demonstrated? Group of answer choices A virus sweeps through a population and makes everyone ill. A virus sweeps through a population and kills 10% of infants. It is not clear why some die and some don't. A virus sweeps through a population and kills 20% of the population. It is not clear why some die and some don't. A virus sweeps through a population and permanently sterilizes the 10% of the population that has allele hx25c.Why do organisms or species need to evolve?
- Do mutations always lead to evolution? Yes, because mutations create adaptations that give a competitive advantage. No, because most mutations lead to death of the organism. Yes, because there would be no change in populations without mutations. No, because some mutations happen in body cells, so they are not passed on.What do you think would be the genetic and evolutionary consequences to the population if it was not subject to natural selection?Fred and George are arguing over evolution. Fred posits that evolution can occur in any population as long as all members gradually undergo change. George disagrees; he thinks that individual memebers of the population do not change but instead have offspring with the trait(s) of interest and thus a population evolves over generations. Who is right? Choose the best answe a. Fred is right! As members of the population respond to the environment, they change to suit it better O b. Fred is right! All memebers of the population must change aroudn the same time O c. George is right Evolution occurs over generations as only the beneficial traits are passed onto the next generation. O d. George is right! Individuals don't change their alleles, but the offspring they have contributes to the change in population allele frequencies
- Which type of environment would tend to reduce genetic variation in a population because of evolution by natural selection? an old growth forest with trees that are over 1,500 years old a tropical rainforest that is being deforested for farmland an ocean ecosystem that is becoming more acidic grasslands that are undergoing severe droughtWhen people think about living to an age far outside of normal expectations – say to 120 or even 150 years of age – they tend to think about their own lives and what they would do with such time. Extending the human lifespan to such lengths, however, might have drastic implications for public policy and the planet as a whole. Do you think that such an increased lifespan would be good for the population? Why or why not? Be thorough in your discussion of these factors.Given a population that contains genetic variation, what is the correct sequence of events, under the influence of natural selection? 1. Well-adapted individuals leave more offspring than do poorly adapted individuals. 2. A change occurs in the environment. 3. Genetic frequencies within the population change. 4. Poorly adapted individuals have decreased survivorship. O 4 -- 2--1--3 O 4---1---2-3 O 4---2---3---1 2---4---3---1 2---4---1---3
- In a courtroom in 2005, biologist Ken Miller criticized the claims of intelligent design. After noting that 99.9% of the organisms that have ever lived on earth are now extinct, he said that “an intelligent designer who designed things, 99.9% of which didn’t last, certainly wouldn’t be very intelligent.” Evaluate Miller’s criticism.why do you think people need a transformation or evolution to adapt to his environment?Why is biology so interesting? Why is biology makes our life became more interesting?