Ecology Flashcards

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1
Q

Ecology

A

The study of interactions between organisms and environment

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2
Q

Species

A

One type of organisms

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3
Q

Biotic factor

A

All the parts of the environment that are living

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4
Q

Abiotic factor

A

All parts of the environment that are nonliving

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5
Q

Habitat

A

The place where an organism lives in a community

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6
Q

Population

A

All the organisms of the same species living in the same place at the same time

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7
Q

Community

A

All populations that live in the same place at the same time

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8
Q

Ecosystem

A

A community interacting with the abiotic parts of its environment, (all the biotic and abiotic parts of an area)

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9
Q

Energy pyramid

A

Diagram showing trophic level / level in food chain

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10
Q

Sun

A

Main source of energy for all living things

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11
Q

Producer

A

Makes food on its own(autotroph)

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12
Q

Photosynthesis

A

The process of food making in producers

Sunlight + CO₂ (carbon dioxide) + H₂O (Water) →

sugar (energy) + O₂ (Oxygen)

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13
Q

Consumer

A

An organism that eats other organisms(heterotroph)

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14
Q

Herbivore

A

An organisms that only eats plants

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15
Q

Carnivore

A

An organism that only eats animals

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16
Q

Scavenger

A

An organism that eats organisms that are already dead.

17
Q

Omnivore

A

An organism that eats both plants and animals

18
Q

Decomposer

A

An organism that breaks down the remains of dead plants and animals(recycle)

19
Q

Food chain

A

The transfer of energy (food) from one organism to another

20
Q

Food web

A

When different chains overlap

21
Q

Competition

A

The contest among organisms to get all they need to survive

22
Q

Niche

A

The role (job) a species has within a community

23
Q

Predator

A

An organism that kills and eats prey to obtain energy

24
Q

Prey

A

An organism that gets eaten by a predator

25
Q

Limiting factors

A

An environmental factor that causes the population to decrease

26
Q

Symbiosis

A

A relationship where food, shelter, support or transportation is provided for one or both organisms

27
Q

Natural selection

A

The struggle between organisms to survive in a habitat with limited resources

Process in which a species becomes better suited for the environment