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Ecosystems > Definitions > Flashcards

Definitions Flashcards

1
Q

What is the definition of producers?

A

A plant or plant-like organism found at the the start of a food chain.

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2
Q

What is the meaning of photosynthesis?

A

Process where the energy of the Sun is used to convert carbon dioxide and water into oxygen and sugars.

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3
Q

What is the pyramid of numbers?

A

A food chain that shows the number of organisms at each level.

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4
Q

Meaning of habitat?

A

A place where a population of organisms lives.

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5
Q

What is the meaning of behavioural adaptation?

A

Behaviour that helps an organism survive in a particular area. Example co-operation.

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6
Q

What is the meaning of physical adaptation?

A

A physical feature that helps an organism to survive in a particular area. E.g. Camouflage

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7
Q

What is consumer?

A

An organism that obtains energy by eating other organisms

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8
Q

Name one animal that is a threat for our ecosystem?

A

European Wasps, Cane toad

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9
Q

What is a food web?

A

A diagram showing several food chains intertwined.

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10
Q

What is biodiversity?

A

Variety of all life on the Earth.

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11
Q

What is ecosystem diversity?

A

Number of different types of ecosystems found in a given area.

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12
Q

What is an ecosystem ?

A

A group of living and non-living things that interact with each other in a self sustaining way.

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13
Q

What has the most amount organisms in the pyramid of numbers?

A

The bottom

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14
Q

Penguins huddle around, is what type of adaption.

A

Behavioural

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15
Q

The beak of a finch is what adaption?

A

Physical

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16
Q

What is genetic diversity?

A

Variety of genetic material within a species

17
Q

What are some examples of decomposers?

A

Fungus, fungi, Bacteria and even snails.

Winter fungus eat dead tree trunks

18
Q

What is a community?

A

Populations of different species that interact with each other?

19
Q

What is a population ?

A

Group of the same kind of organisms that live in the same area.

20
Q

Where do these adaptations originate ?

A

When the animal decide and some get their adaptations from their parents and their pass down generations.

21
Q

What are the three levels of biodiversity?

A

Genetic, Species and Ecology

22
Q

What is the lithosphere?

A

The lithosphere is the sphere of land that is Earth.Many organisms especially mammals live there.

23
Q

What is Hydrosphere

A

The hydrosphere is the sphere of water covering earth. Many organisms like fish live there.

24
Q

What is the biosphere?

A

Biosphere is all the spheres of life, which are the atmosphere, lithosphere and hydrosphere.

25
Q

Name an unicellular organism belonging toKingdom Protista.

A

Amoeba

26
Q

What is the atmosphere?

A

The atmosphere is sphere of gases that covers the whole earth.

Ecosystems (1 decks)

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