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Descent with Modification Solutions Library

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52 solutions

Descent with Modification

Q. Which of the following were important facts in Charles Darwin's development of theory of evolution by natural selection? Select ALL that apply.A. M...

Solved • Aug 29, 2018

Descent with Modification

Q. List the four "forces" of evolution. Explain what each one means.

Solved • Aug 7, 2018

Descent with Modification

Q. Explain how the hooked ends of the forelimb on the anteater might be an adaptation?

Solved • Aug 3, 2018

Descent with Modification

Q. Many mammals have tails. How is the monkey's tail an adaptation? 

Solved • Aug 3, 2018

Descent with Modification

Q. What are the differences between homologous traits and analogous traits?

Solved • Aug 3, 2018

Descent with Modification

Q. The amino acids which comprise an enzyme's active site do not change significantly from species to species. Explain why.

Solved • Jul 27, 2018

Descent with Modification

Q. The fact that DNA sequences are more similar in more closely related organisms is evidence of ______.A. optimal design in organismsB. adaptationC. ...

Solved • Jul 6, 2018

Descent with Modification

Q. Describe phenotypic plasticity. How might this influence natural selection pressures on a genetic trait in a population?

Solved • Jul 2, 2018

Descent with Modification

Q. What did Aristotle/Cuvier think about evolution?

Solved • Jun 26, 2018

Descent with Modification

Q. What is the significance of crossing over (which leads to genetic recombination) to the process of evolution?

Solved • Jun 22, 2018

Descent with Modification

Q. What are the three basic factors required for evolution?

Solved • Jun 22, 2018

Descent with Modification

Q. What does it mean that natural selection acts on the individual? Or acts on the phenotype?

Solved • Jun 20, 2018

Descent with Modification

Q. Define evolution be sure to include in your definition what actually evolves.Describe the principles of natural selection. 

Solved • Jun 20, 2018

Descent with Modification

Q. The evolution from water to land came with a major problem; dehydration. Define dehydration. What have vertebrate animals done to cope with this?

Solved • Jun 20, 2018

Descent with Modification

Q. Explain the statement "It is the population, not the individual, that evolves." Define the terms population, species, and gene pool.

Solved • May 28, 2018

Descent with Modification

Q. Darwin was not the first one to propose that living organisms evolve. What Charles Darwin did was to propose a mechanism that explains how evolutio...

Solved • May 16, 2018

Descent with Modification

Q. The basis of natural selection depends on genetic variation. Please list and explain at least 6 mechanisms for generation if genetic variation with...

Solved • May 15, 2018

Descent with Modification

Q. Contrast neutral theory with selection theory.

Solved • May 11, 2018

Descent with Modification

Q. In most species males are the most colourful sex, but in humans females are often more admired for their physical beauty than males. Explain using ...

Solved • May 8, 2018

Descent with Modification

Q. How is the term Cambrian explosion misleading?Distinguish between convergent evolution and divergent evolution. Which type of selection would you e...

Solved • Apr 16, 2018

Descent with Modification

Q. Members of two different species possess a similar-looking structure that they use in a similar fashion to perform the same function. Which informa...

Solved • Dec 4, 2017

Descent with Modification

Q. An elephant uses its trunk to bring food to its mouth; a human uses their hand to do this. An elephant’s trunk and a human’s hand are _____ structu...

Solved • Dec 4, 2017

Descent with Modification

Q. Which of the following was NOT a factor that  Darwin considered in formulating his hypothesis of evolution?a. Mutations cause living things to chan...

Solved • Dec 4, 2017

Descent with Modification

Q. The Canary Islands are seven islands just west of the African continent. The islands gradually became colonized with life (plants, lizards, birds, ...

Solved • Nov 16, 2017

Descent with Modification

Q. The Canary Islands are seven islands just west of the African continent. The islands gradually became colonized with life (plants, lizards, birds, ...

Solved • Nov 16, 2017

Descent with Modification

Q. The Canary Islands are seven islands just west of the African continent. The islands gradually became colonized with life (plants, lizards, birds, ...

Solved • Nov 16, 2017

Descent with Modification

Q. The Canary Islands are seven islands just west of the African continent. The islands gradually became colonized with life: plants, lizards, birds, ...

Solved • Nov 16, 2017

Descent with Modification

Q. A researcher discovered a species of moth that lays its eggs on oak trees. Eggs are laid at two distinct times of the year: early in spring when th...

Solved • Nov 15, 2017

Descent with Modification

Q. A researcher discovered a species of moth that lays its eggs on oak trees. Eggs are laid at two distinct times of the year: early in spring when th...

Solved • Nov 15, 2017

Descent with Modification

Q. A researcher discovered a species of moth that lays its eggs on oak trees. Eggs are laid at two distinct times of the year: early in spring when th...

Solved • Nov 15, 2017

Descent with Modification

Q. About thirteen different species of finches inhabit the Galapagos Islands today, all descendants of a common ancestor from the South American mainl...

Solved • Nov 15, 2017

Descent with Modification

Q. While examining a skeleton of a snake you notice that it has a pelvic girdle and tiny limb bones like other reptiles. The most likely explanation f...

Solved • Nov 15, 2017

Descent with Modification

Q. Which of the following is an example of homology?a. The arm of a human and the pectoral fin of a dolphinb. The wing of a bird and the front leg of ...

Solved • Nov 15, 2017

Descent with Modification

Q. Currently, two extant elephant species (X and Y) are placed in the genus Loxodonta, and a third species (Z) is placed in the genus Elephas. Thus, w...

Solved • Nov 15, 2017

Descent with Modification

Q. In Spadefoot toads a change in the environment can change the developmental pathway so that the carnivore morph (form) develops rather than the omn...

Solved • Aug 3, 2017

Descent with Modification

Q. Which was not a component of Darwin’s theory of evolution? a. common ancestry of all life b. descent with modification in a branching pattern c....

Solved • Aug 3, 2017

Descent with Modification

Q. Scientists identify genes in sequenced genomes by looking for genes with similar sequences in other genomes. What evolutionary concept allows them ...

Solved • Aug 3, 2017

Descent with Modification

Q. Which of the five aspects of Darwin’s theory of evolution was one for which Darwin had little or no evidence but that molecular and cellular biolog...

Solved • Aug 3, 2017

Descent with Modification

Q. Both kangaroos and grasshoppers have enlarged hind limbs used for jumping. Both evolved independently from short-legged animals. The similarity in ...

Solved • Aug 3, 2017

Descent with Modification

Q. Which question can evolution not explain?  a. The diversity of species on Earth b. The common ancestry of all species on Earth c. How life start...

Solved • Aug 1, 2017

Descent with Modification

Q. Darwin concluded from his observations of nature and readings that:  a.  Individuals compete with one another for limited resources and only the f...

Solved • Jul 20, 2017

Descent with Modification

Q. Farmers and horticulturalists bred broccoli, cauliflower, kale, and cabbage from the wild mustard plant through _____.  a.  Artificial selection ...

Solved • Jul 20, 2017

Descent with Modification

Q. The relatively short term changes in allele frequencies within a species or population is:  a.  Convergent evolution b.  Artificial selection c....

Solved • Jul 20, 2017

Descent with Modification

Q. According to Darwin, natural selection usually:  a.  Neither preserves nor rejects harmful variations in a population b.  Preserves harmful varia...

Solved • Jul 20, 2017

Descent with Modification

Q. A gradual change from an ancestral type was referred to by Darwin as:  a.  Uniformitarianism b.  Descent with modification c.  Catastrophism d....

Solved • Jul 20, 2017

Descent with Modification

Q. Convergent evolution means:  a.  That organisms living in similar habitats may develop similar traits even though they are not closely related b....

Solved • Jul 20, 2017

Descent with Modification

Q. The scientist who published "On the Origin of Species by Means of Natural Selection" in 1859 was:  a.  James Hutton b.  Jean Lamarck c.  Georges...

Solved • Jul 20, 2017

Descent with Modification

Q. The French taxonomist, who in 1809 was the first scientist to suggest that organisms that use one part of their body repeatedly would increase thei...

Solved • Jul 20, 2017

Descent with Modification

Q. Darwin’s book in which he described his views on evolution is: a. Favoured Races b. Principles of Geology c. On the Principle of Population d. ...

Solved • Jul 18, 2017

Descent with Modification

Q. Darwin studied the different species of finches: a. on the Galapagos islands b. in southern South America c. in Great Britain d. in North Ameri...

Solved • Jul 18, 2017

Descent with Modification

Q. Which of the following is a term used in conjunction with how the traits of organisms that leave more offspring become more common in succeeding ge...

Solved • Jul 18, 2017

Descent with Modification

Q. After Darwin concluded his voyage on the Beagle, he proposed that the process of natural selection was the mechanism for: a. artificial selection ...

Solved • Jul 18, 2017