Ecosystems Flashcards

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1
Q

Organism

A

A living thing

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2
Q

Habitat

A

An environment that provides the things a specific organism needs to live, grow, and reproduce

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3
Q

Biotic factor

A

A living or once living part of an organism’s habitat

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4
Q

Abiotic factor

A

A non living part of an organism’s habitat

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5
Q

Population

A

All the members of one species living in the same area

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6
Q

Community

A

All the different populations that live together in a certain area

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7
Q

Ecosystem

A

The community of organisms that live in a particular area, along with their non living environment

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8
Q

Limiting factor

A

An environmental factor that causes a population to decrease in size

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9
Q

Resources

A

Objects used for food, energy, or to make things

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10
Q

Density

A

The number of individuals in an area of a specific size

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11
Q

Producer

A

An organism that can make its own food

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12
Q

Consumer

A

An organism that obtains energy by feeding on other organisms

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13
Q

Decomposer

A

An organism that gets energy by breaking down biotic wastes and dead organisms and returns raw materials to the soil and water

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14
Q

Food chain

A

A series of events in an ecosystem in which organisms transfer energy by eating and by being eaten

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15
Q

Food web

A

The pattern of overlapping feeding relationships or food chains among the various organisms in an ecosystem

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16
Q

Energy pyramid

A

A diagram that shows the amount of energy that moves from one feeding level to another in a food web

17
Q

Role

A

The part that organism plays

18
Q

Evaporation

A

The process by which molecules at the surface of a liquid absorb enough energy to change to a gas

19
Q

Law of conservation of mass

A

The principle that the total amount of matter is neither created nor destroyed during any chemical or physical change

20
Q

Law of conservation of energy

A

the rule that energy cannot be created or destroyed

21
Q

Condensation

A

the change in the state from a gas to a liquid

22
Q

Precipitation

A

any form of water that falls from clouds and reaches earths surface as rain, snow, sleet, or hail

23
Q

System

A

A group of objects or procedures that carry out a task

24
Q

Components

A

Parts of a system