Theories of Evolution

Unit 6Biology 1 part 1

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The Theory of Evolution by natural selection was developed by____ Charles Darwin

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In the geologic time scale, what is the correct order from largest to smallest?

Eras, periods, and the smallest is epochs

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A trait that makes an individual different from others in its species Variation

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Adaptations benefit help living things survive longer and therefore they have a better chance of _____.

Reproducing

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A change in the DNA code of an organismmutation

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The length of a giraffe’s neck is an example of_____Evolution

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Any remains of a once living thing from past agesfossil

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A life form that no longer existextinct

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A trait that makes a living thing able to survive in its surroundings

Adaptation

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Means firstPrime

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Able to reproduce by forming egg or sperm cellsfertile

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The physical traits and behavior that enables organisms to survive and reproduce in their environment.

Fitness

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Name 3 traits that distinguish primates from other mammalsA) Eyes that face forwardB) Well-developed cerebrumC) Thumbs that can be used for grasping

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A species of lizards become separated in different environments, over time each group makes different adaptations and can longer reproduce with on another. The two groups are now different ______.

Species

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Change in hereditary features of a group of organisms over timeEvolution

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Variety of living thingsDiversity of life

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The period when the largest dinosaurs thrived. Also ___ Park was the title of 3 movies about Dinosaurs. The answer is not Marion Park.

Jurassic

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Struggle among living things to get the needs for lifecompetition

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Young plants die when taller plants keep sunlight from them. There is a _____ to survive.

Struggle

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List the Evidences of Evolution:A) Body structure’s originsB) Comparing body chemistryC) Similarities in embryosD) Gene codeE) Vestigial structureF) Change in fossils

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Author who wrote “ On the Origin of the Species”Charles Darwin

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A group of living things that breed with others and produce fertile offspring

species

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T or F? All mutations are beneficial.False. Mutations may be harmful or

beneficial. A beneficial mutation is called an adaptation.

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When an organism has rivals trying to utilize the same resources ( like food and shelter) Competition

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The name of the ship that Darwin traveled onThe Beatle

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The era we live in now is the _______.Cenozoic

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A body part that no longer has a functionVestigial structure