Ecosystems Flashcards

Define each of the words in the deck.

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1
Q

Adaptation

A

Any alteration or change in the structure or behavior of a species that helps it survive.

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2
Q

Biodiversity

A

The number and variety of different organisms living in the same ecosystem.

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3
Q

Characteristic

A

A distinguishing quality or attribute of an organism.

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4
Q

Classify

A

To arrange or organize things into specific categories based on their similarities.

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5
Q

Diversity

A

The amount of variety or difference within a species.

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6
Q

Evolution

A

A change in a species over a long period of time.

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7
Q

Function

A

The purpose for which an organism was designed.

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8
Q

Generation

A

All of the offspring that are at the same stage of descent from a common ancestor.

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9
Q

Mutation

A

A change in the structure of the genes or chromosomes of an organism.

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10
Q

Organism

A

A living thing.

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11
Q

Theory

A

A set of principals devised to explain a phenomenon.

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12
Q

Offspring

A

The children of a parent organism.

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13
Q

Fatal

A

Causing or capable of causing death.

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14
Q

Mature

A

When an organism is complete in its natural growth or development.

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15
Q

Replicate

A

To repeat or duplicate something.

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16
Q

Depletion

A

To seriously decrease the abundance of something.

17
Q

Sedentary

A

When an organism stays in one place and does not migrate.

18
Q

Salinity

A

The amount of salt in a solution.

19
Q

Trophic Level

A

A level at which an organism is placed based on what it eats or uses for energy.

20
Q

Aquatic

A

Pertaining to water.

21
Q

Bioluminescence

A

The production of light by living organisms.

22
Q

Sediment

A

Material such as sand and silt that is transported by water, ice, or wind and settles in a certain area.

23
Q

Precipitation

A

A form of water such as liquid, ice, or snow that falls from the sky.

24
Q

Decomposer

A

An organism that breaks down dead organic material and uses it for energy.

25
Q

Photosynthesis

A

The process in which plants turn energy from the sun into usable energy in the form of carbohydrates.

26
Q

Chemosynthesis

A

The formation of organic compounds using the energy from chemical reactions rather than sunlight.

27
Q

Bioaccumulation

A

The build-up of material, including toxins, in the tissues of organisms.

28
Q

Ecosystem

A

Living and non living things interacting with each other in a specific area.

29
Q

Consumer

A

A type of organism that eats other organisms for food.

30
Q

Nutrients

A

A substance that provides nourishment for an organism to grow and survive.

31
Q

Endangered

A

When a species is threatened or their population is near extinction.