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Nat 5 Bio > Life On Earth Unit 3 Biodiversity > Flashcards

Life On Earth Unit 3 Biodiversity Flashcards

1
Q

What is a Biome

A

A various region of the planet that have a distinct climate, with distinct plants and animals.

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2
Q

Name 3 land biomes

A

Forests
Grasslands
Tundra

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3
Q

Name 3 water biomes

A

Oceans
Freshwater lochs
Salt water seas

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4
Q

What is an Ecosystem

A

A natural biological unit where organisms interact with their environment.

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5
Q

What is a habitat

A

A place where an organism lives

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6
Q

Give 3 examples of habitat

A

Pond
Rock pool
Soil

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7
Q

What does the term community mean

A

It is the name given to all the different organisms living in a habitat.

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8
Q

What is a population

A

It is the total number of organisms of the same species that live in a particular habitat.

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9
Q

Biodiversity

A

The variety and relative abundance of species present in an ecosystem

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10
Q

What’s a biotic factor? Name 2

A

Living organism:
Disease
Food and space

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11
Q

What is an abiotic factor? Name 2

A

Non living or physical factor that affect organisms:
Light
Moisture

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12
Q

What is a producer

A

A green plant that produces it’s own food. It is the source of a food chain

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13
Q

what is a consumer

A

Animals that cannot produce their own food and eat other things instead

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14
Q

Definition or herbivore carnivore and omnivore

A

.eat only plants
. Eat only animals
. Eat both animals & plants

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15
Q

What percentage of energy is lost through the process of food chain and how much is passed on

A

90% is lost

10% is passed on

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16
Q

What is a food web

A

All the organisms of one species in an ecosystem

17
Q

What’s a decomposer

A

Obtain energy by breaking down undigested waste, uneaten remains and dead bodies

18
Q

What is a pyramid of biomass

A

Diagram that shows the total mass of organisms at each level of a food chain

19
Q

What’s a quadrat

A

A piece of apparatus samples plants and slow moving animals such as limpets

20
Q

How do u make sure ur experiment is reliable

A

Repeat it (many samples taken)

21
Q

What’s a pitfall trap

A

Apparatus samples soil invertebrates such as beetles and woodlice

22
Q

What’s the two mains ways energy is lost in a food chain

A

Heat and movement

23
Q

An animal that hints and kills others for food

A

Predator

24
Q

An animal that is hinted and killed by another for food

A

Prey

25
Q

Pyramid of numbers is a …

A

Diagram that shows the number of organisms at each level of a food chain

26
Q

What’s a food chain

A

Living organisms and their non-living surroundings

Nat 5 Bio (1 decks)

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