Ecology Flashcards

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1
Q

What is ecology

A

Ecology is the study of the earth and ecosystems

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2
Q

What is a community

A

A community is a group of organisms that interact with each other in a certain location

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3
Q

What is and ecosystem

A

An ecosystem is a group of organisms that live and interact with each other.

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4
Q

What is population

A

Population is the amount of organisms in an area.

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5
Q

What is an organism

A

A group of organelles that join to form a living organism

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6
Q

What are Biotic factors

A

Living parts of a habitat

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7
Q

What are Abiotic factors

A

Non-living parts of a habitat

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8
Q

What does the term niche mean

A

A job or role in a habitat

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9
Q

What is a habitat

A

A place where an organism lives

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10
Q

Give three things that need to survive

A

Oxygen-respiration, food-to eat, water-to drink

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11
Q

Give three things that animals compete for

A

Mates, status, food

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12
Q

Give four thing that plants need to survive

A

CO2(carbon dioxide), light, water, mineral ions

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13
Q

Give three things that plants compete for

A

Light, space, water

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14
Q

What is an adaptation

A

An adaptation is something that an organism has developed(e.g. large ears) to help them survive.

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15
Q

Give four things that microorganisms need for survival

A

Oxygen-some
Sunlight-some
Water
Food

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16
Q

Give the three types of adaptation

A

Structural, behavioural, functional

17
Q

Give the definition for structural adaptations

A

Changes of an organisms body structure

18
Q

Give the definition for behavioural adaptations

A

Changes in the way organisms behave

19
Q

Give the definition for functional adaptations

A

Chemical processes that take place inside an organisms body

20
Q

Give an example of a structural adaptation

A

Cacti have spines and extensive root systems

21
Q

Give an example of a behavioural adaptation

A

Plant shoots grow towards the light and their roots towards water

22
Q

Give an example of a functional adaptation

A

Nightshade contain deadly poisons.

23
Q

What is the difference between population and distribution

A

Population density represents the average number of organisms in a set area, whereas distribution density is how the organisms are spread out

24
Q

Why is sampling important

A

Because we cannot count every organism.

25
Q

What is a quadrat

A

It is a randomly placed sample zone

26
Q

What is a transect

A

A transect is a path which someone counts and records occurrences of the object of study.

27
Q

What is a food web

A

A web of organisms that start with the producer and end with the consumer

28
Q

Give an example of a food web

A

Algae->crab->trout

29
Q

What is trophic level 1

A

Producers

30
Q

What is trophic level 2

A

Primary consumers

31
Q

What is trophic level 3

A

Secondary consumers

32
Q

What is trophic level 4

A

Apex predator/tertiary consumer