Environments all over the world are changing as a result of global warming. Will this cause natural selection to occur? A. No.The environment is always changing. Global warming is nothing new. B. Yes, warmer temperatures will induce mutations that are favorable to survial in the new teperature regime C. No. The only change will be that species from hot environments will expand their ranges. D. Yes. Traits that help individuals produce more offspring in warmer environments will increase in frequency. E. Yes. Warmer temperatures will increase the rate of chemical reactions in poikilothemic species and thus natural selection will be enhanced.

Environments all over the world are changing as a result of global warming. Will this cause natural selection to occur? A. No.The environment is always changing. Global warming is nothing new. B. Yes, warmer temperatures will induce mutations that are favorable to survial in the new teperature regime C. No. The only change will be that species from hot environments will expand their ranges. D. Yes. Traits that help individuals produce more offspring in warmer environments will increase in frequency. E. Yes. Warmer temperatures will increase the rate of chemical reactions in poikilothemic species and thus natural selection will be enhanced.

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter12: Diversity Of Life

Section: Chapter Questions

Problem 8RQ: Which statement about analogies is correct? a. They occur only as errors. b. They are synonymous...

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Biologists sometimes say that “natural selection depends on the specific environment where a species lives.” What does this statement mean? A) A) If populations of a species are in different environments, traits that individuals need to meet their needs in each environment will appear. B) Traits can be helpful or harmful. If populations of a species are in different environments, some traits that are helpful in one environment might be harmful in another environment. C) Traits are always either helpful or harmful, and the environment of a population doesn’t matter. If populations of a species are in different environments, the same traits will always be helpful. D) Species were formed to perfectly match their environment. The traits of individuals in a species depend on the specific environment in which they were created.
When we take, say, 100 individuals of a species of beetle from the wild and place them in a new environment that is not so different that they are unable to thrive but different enough so that they are experiencing a new selective regime, say, a lower temperature, what typically happens? A - Sexual selection causes some larvae to be able to survive in the cooler temperatures and other individuals to be unable to survive because they need warmer temperatures. B - We are unable to measure phenotypic selection, presumably because we do not have much variation among individuals for how they handle temperature. C - The founder event assures us that the new population will be strictly representative of the source population (especially if we took all the 100 from the same location rather that from throughout the range of the species). D - The population evolves to be tolerant of the lower temperature; it can do this because of latent variation already in the 100 founding individuals. E -…
Which statement about analogies is correct? a. They occur only as errors. b. They are synonymous with homologous traits. c. They are derived by response to similar environmental pressures. d. They are a form of mutation.
What does “descent with modification” mean?a. Populations that change quickly are likely to become extinct.b. Inherited traits change from generation to generation.c. Tracing an evolutionary tree from top to bottom reveals changes inspecies diversity.d. Parents change their own features before passing them on to offspring.
With stronger natural selection, was the more beneficial allele lost from these small populations?a) It was lost very frequently, and the strength of natural selection did not make any difference.b) It was never lost.c) It was lost a few times, but not very often, and it was lost less frequently under strong selection.d) It was lost a few times, and it was lost more frequently under strong selection.
Dog breeders use selective breeding, also called artificial selection, to maintain a closed genetic lineage, and produce offspring with desirable traits. This violates which Hardy-Weinberg condition? a reproduction b no mutation c random mating d no natural selection
You are wandering in the Amazon rainforest, when you hear the loud call of an animal. You walk in the direction of the sound, and discover that it is coming from an adorable species of frog. a) What type of adaptation is being displayed by this species of frog? b) Describe how selection could work FOR and AGAINST this adaptation.
Why are humans so genetically similar within our species? A. Because humans evolved in multiple locations around the world at different times. B. Because humans evolved in one location (Africa) and we have existed as a species for very long time. C. Because humans evolved in one location (Africa) and we haven't existed as a species for very long. D. Humans are not very genetically similar to one another.
You are studying a species of beetle known as a Flumbodoodle Beetle. The beetle has long spikes on its shell to defend itself from potential predators. You are interested in studying evolution in this beetle. Which of the following studies do you not need to conduct to determine if the long spike trait can evolve by natural selection. a. A study that determines whether beetles with longer spikes survive and reproduce better than beetles with shorter spikes. b. A study that measures the spike length variation across multiple individuals in a population. c. A study where you measure the spike length on the parents and a study where you measure the spike length on the offspring. d. A study that determines whether these spikes on the beetle are also used in mate choice contexts.
What is the difference between artificial selection (e.g., greyhounds that are bred for speed) and natural selection? a. In artificial selection, the genetic variation introduced into the population is limited, but in natural selection, it is not b. In artificial selection, the environment is the selective force, while in natural selection, humans are the selective force c. In natural selection, the environment is the selective force, while in artificial selection, humans are the selective force d. Unlike other species, dogs are not subject to natural selection e. Both A & C
What is neutral evolution? A. Neutral evolution does not exist. B. When certain genes are present or absent in populations due to natural selection (they are advantageous or disadvantageous). C. When certain genes are present or absent in populations regardless of selection (they are not advantageous or disadvantageous). D. When certain genes are present or absent in populations due to sexual selection (they are selected for by the opposite sex).
Which of the following conclusions are MOST likely to be supported by genetic evidence? A. Some modern-day organisms did not exist in the past. B. Some organisms found in the fossil record do not currently exist. C. Environmental change affected the fitness of individuals differently based on their traits. D. Some disease-causing traits may remain in a population because their alleles provide an advantage to heterozygotes.

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	A.	No.The environment is always changing. Global warming is nothing new.
	B.	Yes, warmer temperatures will induce mutations that are favorable to survial in the new teperature regime
	C.	No. The only change will be that species from hot environments will expand their ranges.
	D.	Yes. Traits that help individuals produce more offspring in warmer environments will increase in frequency.
	E.	Yes. Warmer temperatures will increase the rate of chemical reactions in poikilothemic species and thus natural selection will be enhanced.