Chapter 1: Introduction to Evolutionary Biology

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Neo Lamarckism

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26 Terms

1

Neo Lamarckism

______ includes several theories based on the old idea of inheritance of modifications acquired during an organism's lifetime.

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2

Evolutionary biology

________ is concerned with explaining and understanding the diversity of living things and their characteristics.

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3

Microevolution

________ is slight, short- term evolutionary changes within species.

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4

Uniformitarianism

________ is the proposition that natural processes that operated in the past are the same as in the present.

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5

hypothesis

A(n) ________ is an informed conjecture or statement of what might be true.

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6

naturalistic fallacy

The ________ is the philosophical supposition that what is "natural "is "good".

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7

Carolus Linnaeus

This person established the framework of modern taxonomy.

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8

Chevalier de Lamarck

This person hypothesized that different organisms originated separately by spontaneous generation from nonliving matter, starting at the bottom of the chain of being.

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9

Macroevolution

________ is the evolution of the major alternations that distinguish higher taxa (genera, families, orders, and classes).

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10

Natural selection

______ is the differential survival and/or reproduction of classes of entities that differ in one or more characteristics.

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11

Genetic drift

______ is the evolution of DNA sequences that occurs by chance, rather than natural selection.

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12

Biological

______ evolution is the inherited change in the properties of groups of organisms over the course of generations.

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13

Gradualism

A distinct component of Darwin's theory of evolution that says differences between even radically different organisms have evolved by small steps through intermediate forms, not by leaps.

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14

Evolution

______ is the simple proposition that the characteristics of organisms change over time.

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15

18th century

Belief in the literal truth of the biblical story of creation started to give way in the ________ when a philosophical movement called the Enlightenment adopted reason as the major basis of authority and marked the emergence of science.

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16

scientific theory

A(n) ________ is a comprehensive, coherent body of interconnected statements, based on reasoning and evidence, that explain some aspect of nature.

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17

creationist movement

The ________ believes in Gods creations and opposes the teaching of evolution in public schools, or at least demands equal times for creationist beliefs.

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18

individual's phenotype

A(n) ________ is an organism's observable traits.

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19

Hypothetico deductive method

________ is the method where hypotheses are tested and are rejected, modified, or provisionally accepted.

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20

Charles Darwin

________ (1809- 1882) is the main historical figure in any discussion on evolution; he is most known for theorizing natural selection.

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21

Neo Darwinism

________ is the theory of natural selection of inherited variations, that denied that acquired characteristics might be inherited; often used more broadly to mean the modern theory that natural selection, acting on randomly generated particulate genetic variation, is the major, but not the sole, cause of evolution.

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22

Speciation

__________ , the origin of two species from a single ancestor species, usually occurs by the genetic differentiation of geographically isolated populations.

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23

Evolutionary synthesis

________ (or modern synthesis) is the reconciliation of Darwin's theory with the findings of modern genetics, which gave rise to a theory that emphasized the coaction of random mutation, selection, genetic drift, and gene flow.

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24

Frequency

________ of a variant form is the proportion of individuals with that variant feature.

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25

Particulate inheritance

________ is Gregory Mendel's theory that proposed inheritance is based not on blending fluids, but on particles that pass unaltered from generation to generation, so that variation can persist.

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26

Natural selection

________ is the idea that although many individuals are born, not all survive; certain individuals with superior features are more likely to survive and reproduce than individuals with inferior features.

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