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Science 7B > The Diversity of Living Things > Flashcards

The Diversity of Living Things Flashcards

1
Q

What is anything that causes a reaction or change in an organism?

A

Stimulus

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2
Q

What is an organism’s reaction to a stimulus?

A

Response

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3
Q

What is a set of actions taken by an organism in response to a stimulus?

A

Behavior

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4
Q

What is the response of an organism to a stimulus?

A

Homeostasis

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5
Q

What is a chemical signal that affects activity in an organism?

A

Hormone

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6
Q

What is the movement of organisms toward or away from an external stimulus?

A

Taxis

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7
Q

What is the movement of a plant in response to an external stimulus?

A

Tropism

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8
Q

What is an animal response to stimulus, resulting in a lowered state of activity?

A

Hibernation

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9
Q

What is a group of organisms that can reproduce only with one another?

A

Species

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10
Q

What is the process by which humans breed organisms for certain characteristics?

A

Artificial Selection

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11
Q

What is a feature that helps an organism to better survive in its environment?

A

Adaption

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12
Q

What are differences in inheritable traits that occur in individuals within a species?

A

Variation

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13
Q

What is the process by which populations gradually change over time?

A

Evolution

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14
Q

What is a group of the same species that live in the same place at the same time?

A

Population

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15
Q

What is the tool used to identify organisms that have been classified by physical characteristics?

A

Dichotomous Key

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16
Q

What is the ability of an ecosystem to survive change?

A

Biodiversity

17
Q

What is the ability of an environment to meet human needs indefinitely?

A

Sustainability

18
Q

What is the science of naming and classifying organisms?

A

Taxonomy

19
Q

What is a specific place with conditions that suit the organisms that live there?

A

Habitat

20
Q

What is the study of evolutionary relationships among organisms?

A

Phylogenetics

21
Q

What is the organization of living things into groups based on traits?

A

Classification

Science 7B (4 decks)

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