EOC Review (Earth's History, Evolution, Classification)

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What are mammals?

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Mammals are a class of animals characterized by the presence of mammary glands, which produce milk for feeding their young, and typically have hair or fur.

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What is binomial nomenclature?

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Binomial nomenclature is a two-part naming system for organisms, consisting of the genus name followed by the species name.

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What is non-random mating?

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Non-random mating occurs when individuals select mates based on specific traits, leading to a preference for certain characteristics.

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What does it mean if two fossils are found in the same rock layer?

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If two fossils are found in the same rock layer, it suggests that the organisms lived during the same time period.

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What is the principle of superposition in geology?

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The principle of superposition states that in undisturbed sedimentary rock layers, the oldest layers are at the bottom and the youngest are at the top.

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What is genetic drift?

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Genetic drift is a mechanism of evolution that refers to random changes in allele frequencies in a population, often having a more significant effect in small populations.

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What is gene flow?

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Gene flow is the transfer of genetic material between populations, which can increase genetic diversity.

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What is a fossil?

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A fossil is the preserved remains or traces of ancient organisms, often found in sedimentary rock.

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What is the Mesozoic era known for?

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The Mesozoic era is known as the age of reptiles, including dinosaurs, and is divided into three periods: Triassic, Jurassic, and Cretaceous.

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What is the significance of the Cambrian explosion?

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The Cambrian explosion refers to a rapid diversification of life forms that occurred approximately 541 million years ago, leading to the emergence of most major animal phyla.