Ecosystems (paper2) Flashcards

1
Q

What do organisms need to stay alive

A

Resources

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2
Q

What do plants need to stay alive

A

Light, water, carbon dioxide, oxygen, warmth and mineral ions

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3
Q

What do animals need to stay alive

A

Oxygen, food, water and shelter

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4
Q

Define ecosystem

A

All the organisms and the environment they live in

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5
Q

Define consumer

A

Needs to eat other organisms for energy

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6
Q

Define resource

A

The things that an organism needs to stay live

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7
Q

Define food web

A

Shows the feeding relationship between organisms in a community

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8
Q

Define community

A

All the different organisms that live in an ecosystem

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9
Q

Define abundance

A

How common something is in an area

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10
Q

Define population

A

The number of one type of species

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11
Q

Define producer

A

An organism that produces its own food

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12
Q

Define habitat

A

A place in which an organism lives

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13
Q

Define distribution

A

Where the organisms are found in an ecosystem

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14
Q

Define adaption

A

How the organisms are suited to particular conditions

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15
Q

You can estimate population sizes by doing what with what

A

Taking samples with a quadrat

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16
Q

What is the population size equation

A

Pop size = number if organisms in all quadrants x (total size of area where the organism lives divided by total area of quadrats)

17
Q

What is energy from the sun transferred into through photosynthesis

18
Q

What is biomass

A

Mass of tissues

19
Q

What is another way that solar energy is transferred

A

Heating during respiration

20
Q

What is another word for a feeding level

A

Trophic levels

21
Q

What is trophic levels

A

The energy flowing through the biotic components of an ecosystem

22
Q

How can we show the amount of biomass at each trophic level

A

With a pyramid of biomass

23
Q

What are non living factors called

A

Abiotic factors

24
Q

The effect of abiotic factors on distribution can be measured using what

A

A belt transect

25
What is measured with a belt transect
The abundance of organisms and abiotic factors
26
Changes in abundance can show what
Which abiotic factor has the greatest effect on organisms
27
What is drought
A lack of water
28
What are substances that can cause harm in the environment
Pollutants
29
What do pollutants end up causing
Pollution
30
What are biotic factors
Organisms in an ecosystem that affect other living organisms
31
Why is Yellowstone Park an ecosystem
It’s a huge area of protected land