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Biology > Nat 4 nab > Flashcards

Nat 4 nab Flashcards

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1
Q

INTRAspecific

A

Between members of the same species

Fierce competition

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2
Q

INTERspecific

A

Between members of different species

Less fierce competition

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3
Q

Food web

A

A food web is something that shows what animals eat what and it is a more complex food chain

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4
Q

A producer is a ……….

A

Green plant

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5
Q

A consumer is ………………………………………….

A

Anything that gains energy from eating other organisms

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6
Q

What do the arrows show

A

The direction of energy flow

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7
Q

What is a predator

A

An animal which hints and kills other animals for food

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8
Q

What is prey

A

An animal which is hunted and killed

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9
Q

What is an interaction of food chains called

A

A food web

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10
Q

What is a biome

A

A collection of ecosystems within the same general climate

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11
Q

2 examples of a biome

A

Tundra , desert

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12
Q

What are sampling techniques used for

A

They are used to sample biotic factors

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13
Q

A sampling technique isn’t a valid experiment if the ……………….

A

Traps are different

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14
Q

A sampling technique is not reliable if you ………………….

A

Only do it once

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15
Q

Competition

A

When organisms find that they are competing for a food source against another organism and the source is limited

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16
Q

What would the impact on biodiversity be if a forest fire had to wipe out a whole forest?

A

Biodiversity would decrease in that area

17
Q

What would happen to biodiversity if conservation happened in an area

A

Biodiversity would increase

18
Q

What would happen to biodiversity of pollution happened in a town

A

Biodiversity would decrease

19
Q

What does PANiNa mean

A

Protiens, ammonium, nitrites , nitrates

20
Q

What is the process of the nitrogen cycle

A

Protein from plants or animals by death or decomposition then ammonium in soil then nitrates in soil then nitrates in soil…. PANiNa

21
Q

What does nitrogen make

A

Protein

22
Q

What do fertilisers replace

A

Lost nitrogen

23
Q

Give to examples of nitrate fertilisers

A

Compost and manure

24
Q

What do nitrogen fixing crops do

A

Improve biodiversity

25
Q

What is the algal bloom story

A

Farmer puts fertilisers on fields excess nutrients go into soil then leach into rivers algal bloom grows bacteria eats algal bloom oxygen gets cut off from the river and then everything dies.

26
Q

What is adaptation

A

Any physical or behavioural change that increases the chances of an organism surviving in its environment

27
Q

What is habituation

A

A non harmful change to a organism when it adapts to a non harmful threat eg a snail being repeatedly tapped will stop withdrawing into its shell

28
Q

Habituation? Why?

A

This increases the organisms lifespan / chances of surviving as it is not using as much energy, eg the snail stops withdrawing into its shell therefore it saves energy

29
Q

What do fertilisers replace

A

Lost nitrogen

30
Q

Give to examples of nitrate fertilisers

A

Compost and manure

31
Q

What do nitrogen fixing crops do

A

Improve biodiversity

32
Q

What is the algal bloom story

A

Farmer puts fertilisers on fields excess nutrients go into soil then leach into rivers algal bloom grows bacteria eats algal bloom oxygen gets cut off from the river and then everything dies.

33
Q

What is adaptation

A

Any physical or behavioural change that increases the chances of an organism surviving in its environment

34
Q

What is habituation

A

A non harmful change to a organism when it adapts to a non harmful threat eg a snail being repeatedly tapped will stop withdrawing into its shell

35
Q

Habituation? Why?

A

This increases the organisms lifespan / chances of surviving as it is not using as much energy, eg the snail stops withdrawing into its shell therefore it saves energy

Biology (3 decks)

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