Nab Flashcards

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1
Q

Biome

A

A region of the plane refined by its flora, fauna and climate

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2
Q

Community

A

All of the organisms present in an ecosystem

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3
Q

Ecosystem

A

All of the organisms living in a particular area and their non living counterparts

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4
Q

Habitat

A

Place where an organism lives

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5
Q

Niche

A

Role an organism plays within a community

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6
Q

Population

A

All of the organisms of one species found in a particular area

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7
Q

Species

A

A group of organisms capable of breeding with each other to produce fertile offspring

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8
Q

Abiotic factors

A
Non living 
Light
Moisture 
Temperature
pH
wind speed 
Oxygen availability
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9
Q

Biotic factors

A
Living
Grazing
Competition 
Predation 
Disease
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10
Q

Example and affect of habitat destruction

A

Knocking down rainforest

Removal of biodiversity, climate change

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11
Q

Example and affect of pollution

A

Untreated sewage leaked into lakes and rivers, de-oxygenation of water and collapse of food chains

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12
Q

Hunting and fishing Example and affect

A

Extinction of species

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13
Q

Biodiversity

A

The variety of species present in the community of an ecosystem

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14
Q

Producers

A

Make their own food through photosynthesis

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15
Q

Consumers

A

Eat other organisms for energy

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16
Q

How much energy is available at the next stage of any food chain?

A

10%

17
Q

What is energy transfer in food chains used for?

A

Growth - building new body tissue available at next level

Heat and movement - body temp and movement , not available

Undigested/ uneaten - contains chemical energy only available to decomposers eg bacteria and fungi

18
Q

What is a pyramid of numbers?

A

Shows the total number of organisms at each level of the food chain (if it looks like a tree, the producer is a tree)

19
Q

What is a pyramid of biomass?

A

Shows the weight of the organisms at each level (Usually pyramid shaped as an organism can’t weigh more than it eats)

20
Q

What is a pyramid of energy?

A

Shows energy at each level of the food chain and is the most realistic way of represent energy levels in a food chain. Always shaped like a pyramid