Science MIH revision

Question 1

What is another name for living things?

Answer 1

Organisms

Question 2

Give 3 examples of Fungi.

Answer 2

Yeasts, moulds and mushrooms

Question 3

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

Answer 3

Adaptations

Question 4

Explain ‘M’ in MRS GREN

Answer 4

Movement

Question 5

Explain ‘R’ in MRS GREN

Answer 5

Respiration

Question 6

Explain ‘S’ in MRS GREN

Answer 6

Sensitivity

Question 7

Explain ‘G’ in MRS GREN

Answer 7

Growth

Question 8

Explain ‘R’ in MRS GREN

Answer 8

Reproduction

Question 9

Explain ‘E’ in MRS GREN

Answer 9

Excretion

Question 10

Explain ‘N’ in MRS GREN

Answer 10

Nutrition

Question 11

What is Ecology?

Answer 11

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

Question 12

What is the source of energy in a food chain?

Answer 12

The sun

Question 13

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

Answer 13

Grass → Grasshopper → Frog → Eagle

Question 14

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

Answer 14

Land - Plants
Oceans - Phytoplankton

Question 15

What do the producers do in the presence of sunlight?

Answer 15

Make food by photosynthesis

Question 16

What is a structural adaptation?

Answer 16

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

Question 17

What is a behavioural adaptation?

Answer 17

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

Question 18

What is a physiological adaptation?

Answer 18

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

Question 19

What is the difference between biotic and abiotic factors?

Answer 19

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

Question 20

Give examples of biotic and abiotic factors.

Answer 20

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

Question 21

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

Answer 21

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

Question 22

What is a producer’s trophic level?

Answer 22

1st trophic level

Question 23

What is a primary consumer’s trophic level?

Answer 23

2nd trophic level

Question 24

What is a secondary consumer’s trophic level?

Answer 24

3rd trophic level

Question 25

What is an apex predator's trophic level?

Answer 25

4th trophic level

Question 26

Consider this food chain: grass → insect → frog → fox. What would happen if all insects got a disease and eventually perished?

Answer 26

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

Question 27

What does an arrow (→) represent?

Answer 27

The transfer of energy between organisms.

Question 28

What is an omnivore?

Answer 28

An organism that eats all things – meat and plants.

Question 29

What is a carnivore?

Answer 29

An organism that eats only meat

Question 30

What is a herbivore?

Answer 30

An organism that eats only plants.

Question 31

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?

Answer 31

Structural

Question 32

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

Answer 32

Plants can make their food by photosynthesis.

Question 33

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

Answer 33

False

Question 34

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

Answer 34

Producer - Grass Herbivore - Cow Carnivore - Lion

Question 35

What is cool burning?

Answer 35

Managing the overgrowth in the bush by sustainable methods.

Question 36

What do Indigenous Australians use fire for?

Answer 36

Hunt animals, maintain ecosystems and manage the land.