Concept explainers
To explain: The pre-Darwinian concepts explained by the given couplet by Ralph Waldo:
“Striving to be a man, the worm
Mounts through all the spires of form.”
Introduction: In today’s world, Darwin’s theory of evolution is the most accepted. Before Darwin also many theories regarding evolution was proposed. Theories that came before Darwin were not of able to give reason to all the standing questions regarding any change that took place in a species.
To explain: The faults that a Darwinian can find in pre-Darwinian concepts.
Introduction: In today’s world, Darwin’s theory of evolution is the most accepted. Before Darwin also many theories regarding evolution was proposed. Theories that came before Darwin were not of able to give reason to all the standing questions regarding any change that took place in a species.
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Check out a sample textbook solution- What are Darwin’s five theories of evolution (as identified by Ernst Mayr)?arrow_forwardDarwin's basis of evolution was founded upon several explanations. Identify five of these supporting ideas, explain what they are and also give an example of each.arrow_forwardExplain how each of the following contribute(s) to Darwin’s evolutionary theory: fossils; geographic distributions of closely related animals; homology; animal classification.arrow_forward
- What is Darwin's F.A.M.E. evidence of evolution? Give examples for each evolution.arrow_forwardTheodosius Dobzhansky wrote “Nothing in biology makes sense except in the light of evolution.” What did he mean by this? How does evolution unify the biological sciences? What other principles might do so?arrow_forwardBased from your discussions regarding the merits and demerits of the various evidences of evolution, what would be your top 5 evidence if you are going defend it to a person who questions the validity of evolution? How would you convince him/ her of the validity of evolution?arrow_forward
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- Darwin was the first person to note that evolutionary outcomes are probabilistic, meaning that they depend on the likelihood of outcomes rather than on certainties. Explain what this means in the context of Darwin’s theory of how evolution occurs? That is, how is Darwin’s theory is dependent upon the chances of a certain outcome and not on the absolute certainty of any particular outcome?arrow_forwardLamarck proposed that evolution occurs through the following basic steps: Organisms are born with certain traits. Over the course of an organism's life, these traits gradually change due to pressures in the environment. The changes that occurred during an organism's life are passed on to its young. This idea is similar to current understandings of how evolution works, but it is not quite correct. Which of the following situations is a counterexample that disproves Lamarck's proposed pattern of how evolution occurs? A. Even though the ability to fly would be useful to snakes, snakes cannot spontaneously grow wings. B. Dolphins and whales have become hairless because the fast movement of the water removes all the hair. C. A person who is a championship bodybuilder does not have children who are naturally muscular at birth.arrow_forwardYou have seen many examples of how form fits function at all levels of the biological hierarchy. However, we can imagine forms that would function better than some forms actually found in nature. For example, if the wings of a bird were not formed from its forelimbs, such a hypothetical bird could fly yet also hold objects with its forelimbs. Describe the concept of “evolution as tinkering” to explain why there are limits to the functionality of forms in nature.arrow_forward
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