Ecology notes Flashcards

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1
Q

Ecology

A

the study of interactions between organisms and the environment

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2
Q

Species

A

One type of organism

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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 the 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 the 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

Consumer

A

an organism that eats other organisms (heterotroph)

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11
Q

Herbivore

A

an organism that only eats plants.

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12
Q

Carnivore

A

an organism that only eats animals.

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13
Q

Scavenger

A

An organism that eats organisms that are already dead.

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14
Q

Omnivore

A

an organism that eats both plants and animals.

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15
Q

Decomposer

A

an organism that breaks down the remains of dead plants and animals (recycles).

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16
Q

Food chain

A

the transfer of energy (food) from one organism to another.

17
Q

Food web

A

When different chains overlap

18
Q

Competition

A

The contest among organisms to get all they need to survive.

19
Q

Niche

A

the role (job) a species has within a community

20
Q

Predator

A

an organism that kills and eats prey to obtain energy.

21
Q

Prey

A

an organism that gets eaten by a predator

22
Q

Limiting Factors

A

an environmental factor that causes the population to decrease

23
Q

Symbiosis

A

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

24
Q

Natural Selection

A

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

Process in which a species becomes better suited to its environment.