Which of the following denotes the divisions of the geologic time scale in correct order?
Which of the following denotes the divisions of the geologic time scale in correct order?
Quiz 7 Geology
| Question | Answer |
|---|---|
| Which of the following denotes the divisions of the geologic time scale in correct order of decreasing lengths of time beginning with the longest time interval and ending with the shortest | eon, era, period, epoch |
Who is credited with formulating the doctrine of Uniformitarianism?
Coined by William Whewell, it was originally proposed in contrast to catastrophism by British naturalists in the late 18th century, starting with the work of the geologist James Hutton in his many books including Theory of the Earth.
What is Uniformitarian principle?
This is known as uniformitarianism: the idea that Earth has always changed in uniform ways and that the present is the key to the past. The principle of uniformitarianism is essential to understanding Earth’s history. When discussing past climates, opponents to uniformitarianism may speak of no-analog changes.
What are four main principles to the theory of natural selection?
There are four principles at work in evolution—variation, inheritance, selection and time. These are considered the components of the evolutionary mechanism of natural selection.
What is the difference between catastrophism and gradualism?
Catastrophism and gradualism are related in a sense that they both deal with major changes in a species. However, catastrophism is major changes that occur at once while gradualism is tiny changes over time that eventually lead to a major evolutionary change. The hypothesis by Georges Cuvier. Advocated catastrophism.
What is variation among members of the same species called?
What is variation among members of different species called? interspecific variation.
What differences between the two Galápagos tortoises can you identify from the two pictures?
What differences between the two Galapagos tortoises can you identify from the two pictures? Domed tortoises have short necks and legs, and live in areas with low vegetation. Saddle-backed tortoises have a high shell edge, allowing them to stretch their long necks.
What were Darwin’s two observations?
Darwin drew two inferences from two observations. Observation #1: Members of a population often vary in their inherited traits. Observation #2: All species can produce more offspring than the environment can support, and many of these offspring fail to survive and reproduce.