Advocates of 'scientific creationism' and 'intelligent design' lobby school districts for such things as a ban on teaching evolution, equal time in science classes to teach alternative versions of the origin and history of life, or disclaimers in textbooks stating that evolution is 'just a theory.' They argue that it is only fair to let students evaluate both evolution and the idea that all species were created by God as the Bible relates or that, because organisms are so complex and well adapted, they must have been created by an intelligent designer. Do you think that alternative views of evolution should be taught in science courses? Why or why not?

Question

Accepted Answer

we'll come back. Here's our next problem. It says the following includes the theories Darwin combined to describe evolution except so as we can recall from our content videos when Darwin was proposing this notion of evolution. He combined several different theories based on his observations of the natural world and we're going to look at our answer choices and we're looking for the one that is not one of the theories that he used. So let's just kind of walk through our answer choices here. We'll start with choice. A descent with modification. So I'm just going to put up here a little definition for us to remember descent with modification is the idea that species change over time. That gives rise to new species that share a common ancestor versus the previously believed notion that different species just existed on earth in their variety and that didn't change. So Darwin, as we know with his finches, he saw the way that an ancestor finch changed over time into different varieties. So that was definitely one of the theories that he combined. So not our answer choice. So now we'll look at our next answer choice. Choice B says natural selection. Well, natural selection hopefully. Um That's pretty straightforward that that is definitely one of Darwin's theories. Natural selection is says that the differential survival and reproduction of individuals is due to differences in phenotype. Those differences giving individuals an advantage or a disadvantage in their given environment. Um That gives them different reproductive success. So since that is definitely one of Darwin's theories, we cross that out. That's not our answer choice. So now let's move on to our next one choice see and choice E. Is use and disuse. So this might not be as familiar idea of use and disuse. Put that up here is the idea that parts of an organism use most will develop more and vice versa. If they're not used, they'll atrophy. So this is actually going to be our answer. This is not something that Darwin used as part of his theories. This is associated more with Lamarque. He's the one that thought that as giraffes reach for food high in the trees there next became longer stretched and he thought they could pass that on to their offspring. So use and disuse will be the one that is not one of the theories Darwin combined into his ideas of evolution. But just to be thorough, we're gonna move on to choice D. And that is gradualism up there. And gradualism says that differences between species are often matters of degree, not kind. So again, the image of the finches on the Galapagos islands, which are just they differentiated by the size of their beaks or um shape of their beaks. So little differences on all these different kinds of finches versus the difference between a finch and a crow. So that that was definitely part of Darwin's one of the theories Darwin used. So not our answer here. So again, when we say the theories Darwin combined to describe evolution except. And so Darwin did use theories of descent with modification, natural selection and gradualism. So our answer for the one that he did not use is choice E use and disuse. See you in the next video.

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Key Concepts

Evolutionary Theory

Scientific Method

Intelligent Design vs. Creationism