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Biodiversity Flashcards

(28 cards)

1
Q

The place where an organism lives is its…

A

habitat

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2
Q

All of the organisms in one species in a habitat is…

A

population

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3
Q

All the living organisms in a habitat are known as a…

A

community

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4
Q

What do we call a group of organisms that can interbreed to produce fertile offspring?

A

A species

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5
Q

The variety of living things in an ecosystem is known as…

A

biodiversity

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6
Q

What makes up an ecosystem?

A

All of the living things and their environment.

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7
Q

What is a predator?

A

Animals that kill and eat other animals for it’s food.

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8
Q

What do we call animals that are hunted by a predator?

A

prey

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9
Q

What is the other name for a green plant (because it can make its own food)?

A

a producer

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10
Q

What do we call animals that obtain food by feeding on other animals?

A

a consumer

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11
Q

What is the term for ‘the role an organism plays in its community?’

A

niche

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12
Q

What do arrows in a food chain represent?

A

The direction of energy flow.

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13
Q

Why do food chains always start with green plants?

A

Green plants are producers meaning that they can make their own energy which is then passed through a food chain.

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14
Q

Name 3 ways energy can be lost from a food chain?

A

heat, movement, undigested material

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15
Q

What diagram shows a number of food chains linked in an ecosystem?

A

a food web

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16
Q

What does a pyramid of numbers show?

A

How many organisms are at each stage of a food chain.

17
Q

What does a pyramid of energy show?

A

How much energy is available at each stage of a food chain.

18
Q

What occurs in an ecosystem when resources are in short supply?

19
Q

Name the type of competition that occurs amongst individuals of a different species?

A

interspecific competition

20
Q

Name the type of competition that occurs amongst individuals of the same species?

A

intraspecific competition

21
Q

Name 3 abiotic factors

A

temperature, light intensity and moisture levels

22
Q

Name 3 biotic factors

A

predation, competition and disease

23
Q

How can you minimise error when using a moisture meter?

A

check that the moisture meter is dry.

24
Q

Name the equipment used to sample plants.

25
How should quadrats be placed on the ground?
randomly scattered
26
Name the equipment used to sample ground crawling insects.
a pit-fall trap
27
Describe a potential error when using a pit-fall trap.
If the trap isn't camouflaged, predators may be able to eat the insects that are being sampled.
28
What is it called when measurements are taken along a line within an area?
a transect