Geological history - Study guides, Class notes & Summaries

In the process of nuclear fusion - two or more nuclei fuse or stick together to form a heavier nucleus whose combined mass is slightly less than the original nucleus Beneath the surface of which moon of Saturn is there evidence for the existence of a subsurface ocean of liquid water? - Enceladus Apparent retrograde motion occurs when a planet appears to - move westward with respect to background stars A chemoautotroph gets its energy from - chemical reactions and its carbon from its enviro...

Which of the following is an exogenic process? - weathering Which of the following is an endogenic process? - volcanism Uniformitarianism assumes that - the same physical processes we see today are a key to understanding the processes that have been operating throughout geologic time Which of the following is CORRECT regarding the geologic time scale? - The bulk of Earth's history has occurred during the Precambrian eon. Which of the following is NOT a criteria to be classified as a mine...

Macroevolution changes in a population over very long periods of time. Speciation the splitting of one species into two or more new species Biological Species Concept offers testable way to define a species that does not depend on appearance: The members of a species interbreed and have a shared gene pool, & each species is reproductively isolated from every other species. Gene flow occurs between the populations of a species, but not between pops of diff species. Biolo...

Lamarck's proposal of evolution - 1. Originally, giraffes had short necks. 2. Giraffes stretched their necks in order to reach food. 3. With continual stretching, most giraffes now have long necks. Darwin's proposal of evolution - 1. Originally, giraffe neck length varied. 2. Struggle to exist causes long-necked giraffes to have the most offspring. 3. Due to natural selection, giraffes now have long necks. Darwin completed a five-year journey around the world on what? And what did he...

What is marine biology? - The study of life in the sea A subsection of marine science Oceanography - •Geological Oceanography •Physical Oceanography •Chemical Oceanography •Biological Oceanography Why study marine science? - • Diversity! •71% of the Earth's surface is covered by the oceans •Ocean makes up 99% of living space • History! •Life originated in the sea -We still develop in water • Resources! -$20 trillion/year Ancient Marine Science - •Ancient migr...

A chemoautotroph gets its energy from - chemical reactions and its carbon from its environment Abnormal forms of protein molecules called prions have one of the characteristics of living things in that they - actively respond to external changes According to Kepler's Second Law of planetary motion, a planet moves fastest in its orbit when it is - at perihelion According to the nebular theory for the formation of the solar system - planets should be rotating in the same direction as they o...

Define uniformitarianism CORRECT ANSWER the theory that changes in the earth's crust during geological history have resulted from the action of continuous and uniform processes. What is the difference between Hypothesis and Theory? CORRECT ANSWER A hypothesis is either a suggested explanation for an observable phenomenon, or a reasoned prediction of a possible causal correlation among multiple phenomena. In science, a theory is a tested, well-substantiated, unifying explanation for a set of ...

Pacific Ocean correct answers Deepest and largest ocean Atlantic Ocean correct answers Second largest ocean; separates the Old World from the New World Indian Ocean correct answers Slightly smaller than the atlantic ocean but has the same average depth; mostly in the southern hemisphere Arctic Ocean correct answers Smallest and shallowest ocean; has a permanent layer of sea ice Antarctic or Southern Ocean correct answers Ocean that connects the pacific, atlantic and indian oceans; so...

Lamarck's proposal of evolution Answer> 1. Originally, giraffes had short necks. 2. Giraffes stretched their necks in order to reach food. 3. With continual stretching, most giraffes now have long necks. Darwin's proposal of evolution Answer> 1. Originally, giraffe neck length varied. 2. Struggle to exist causes long-necked giraffes to have the most offspring. 3. Due to natural selection, giraffes now have long necks. Darwin completed a five-year journey around the world on what?...

Diaphragm Part of the compound microscope used to regulate the amount of light being transmitted through the specimen on the slide. 1 milligram 1 x 10 -3 grams Kepler His greatest contribution to science was that he described the orbits of the planets as ellipses. Newton Used the 3 laws of planetary motion to establish universal gravitation. Mendel's Law of Independent assortment In a dihybrid cross, alleles for different traits separate and are inherited independently of each other...