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Yr 7D Revision > Science MIH revision > Flashcards

Science MIH revision Flashcards

Study for test

1
Q

What is another name for living things?

A

Organisms

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2
Q

Give 3 examples of Fungi.

A

Yeasts, moulds and mushrooms

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3
Q

What is the term for characteristics that allow an organism to be successful in a particular environment?

A

Adaptations

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4
Q

Explain ‘M’ in MRS GREN

A

Movement

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5
Q

Explain ‘R’ in MRS GREN

A

Respiration

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6
Q

Explain ‘S’ in MRS GREN

A

Sensitivity

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7
Q

Explain ‘G’ in MRS GREN

A

Growth

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8
Q

Explain ‘R’ in MRS GREN

A

Reproduction

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9
Q

Explain ‘E’ in MRS GREN

A

Excretion

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10
Q

Explain ‘N’ in MRS GREN

A

Nutrition

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11
Q

What is Ecology?

A

The study of organisms and how they interact with the environment around them

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12
Q

What is the source of energy in a food chain?

A

The sun

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13
Q

Arrange the following organisms in a food chain with arrows:
grasshopper, frog, grass, eagle

A

Grass → Grasshopper → Frog → Eagle

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14
Q

What are the different types of producers (on land and in the sea)?

A

Land - Plants
Oceans - Phytoplankton

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15
Q

What do the producers do in the presence of sunlight?

A

Make food by photosynthesis

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16
Q

What is a structural adaptation?

A

Physical features of an organism that enable them to survive in their environment - eg; a giraffe’s long neck.

17
Q

What is a behavioural adaptation?

A

Something an animal does usually in response to survive - eg; hibernating in winter.

18
Q

What is a physiological adaptation?

A

Something an organism internally produces to protect themselves - eg; snake’s venom.

19
Q

What is the difference between biotic and abiotic factors?

A

Biotic factors - living things within an ecosystem
Abiotic factors - non-living components

20
Q

Give examples of biotic and abiotic factors.

A

Biotic - Plants, animals, and bacteria
Abiotic - Water, soil and atmosphere

21
Q

What is the difference between a food chain and a food web?

A

A food chain outlines which organism eats the other. A food web is all of the food chains in an ecosystem.

22
Q

What is a producer’s trophic level?

A

1st trophic level

23
Q

What is a primary consumer’s trophic level?

A

2nd trophic level

24
Q

What is a secondary consumer’s trophic level?

A

3rd trophic level

25
Q

What is an apex predator’s trophic level?

A

4th trophic level

26
Q

Consider this food chain: grass → insect → frog → fox.

What would happen if all insects got a disease and eventually perished?

A

The frogs would run out of food and then eat each other, decreasing the population.

27
Q

What does an arrow (→) represent?

A

The transfer of energy between organisms.

28
Q

What is an omnivore?

A

An organism that eats all things – meat and plants.

29
Q

What is a carnivore?

A

An organism that eats only meat

30
Q

What is a herbivore?

A

An organism that eats only plants.

31
Q

Wildfires are a natural part of many ecosystems. The Banksia is a native Australian plant
germinating (spreading seedlings) after a fire. What is this adaptation?

A

Structural

32
Q

Explain why producers (e.g. plants) are first in the food chain.

A

Plants can make their food by photosynthesis.

33
Q

True or false: Adaptations involve organisms actively changing their characteristics.

A

False

34
Q

Consider this food chain:
(Grass → cow → lion). Name the producer, herbivore and carnivore.

A

Producer - Grass
Herbivore - Cow
Carnivore - Lion

35
Q

What is cool burning?

A

Managing the overgrowth in the bush by sustainable methods.

36
Q

What do Indigenous Australians use fire for?

A

Hunt animals, maintain ecosystems and manage the land.

Yr 7D Revision (5 decks)

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