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Science > Science Test 3 - Ecology > Flashcards

Science Test 3 - Ecology Flashcards

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Biology 101 flashcards
1
Q

What is predation?

A

The predator kills and eats the prey

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2
Q

What is parasitim?

A

One organism lives on or in another organism (host) feeds of it, parasite harms the host

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3
Q

What is a food web?

A

Multiple food chains put together.

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4
Q

What is an ecosystem?

A

A community interacting with the environment

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5
Q

What is biotic?

A

Living thing

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6
Q

What is abiotic?

A

Non-living thing

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7
Q

What is competition?

A

Occurs within the same species, competing for resources

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8
Q

Why are decomposers so important?

A

Keeps ecosystem functioning so it doesn’t run out of resources.

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9
Q

Why is photosynthesis so important within the ecoysystem?

A

It produces glucose and oxygen to help the ecosystem.

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10
Q

What is a population?

A

A group of the same organisms living together

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11
Q

What is an organism?

A

A living thing

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12
Q

What is the trophic level?

A

The positions of an organism is a food chain

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13
Q

Where is the energy stored in biomass transferred to?

A

Transferred from one trophic level to another (by eating, defecation, etc) with some being lost as heat energy.

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14
Q

What is chlorophyll?

A

The pigment inside the chloroplast that absorbs sunlight.

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15
Q

What is photosynthesis?

A

The process where sunlight is converted into chemical energy.

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16
Q

What is a community?

A

A group of populations living together

17
Q

What is the pyramid of energy?

A

Shows amount of energy trapped per area at each stage of a food chain

18
Q

What is mutualism?

A

Two organisms living close together and both benefit

19
Q

What is a producer?

A

Converts sunlight to chemical energy by photosynthesis. (Usually plants, some bacteria).

20
Q

What is another word for a producer?

A

Autotroph.

21
Q

What to decomposers do?

A

Recycle matter for producers to reuse and breaks down dead bodies and waste.

22
Q

What is the pyramid of biomass?

A

Shows total mass of organisms at each stage of a food chain

23
Q

What is a consumer?

A

All organisms that need to eat other organisms to survive.

24
Q

What is another word for a consumer?

A

Heterotroph.

25
Q

What is commensalism?

A

One organism benefits and the other is unaffected

26
Q

What do plants and microrganisms use photosynthesis for?

A

To produce biomass (Living material)

27
Q

What is the pyramid of numbers?

A

Shows relative number of organisms at each stage of a food chain

Science (5 decks)

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