Topic 9

Question 1

Organism

Answer 1

Single living individual

Question 2

Population

Answer 2

Organisms of the same species in an area

Question 3

Community

Answer 3

All the populations in an area

Question 4

Ecosystem

Answer 4

Community and non living components in an area

Question 5

In an ecosystem, all organisms are

Answer 5

Dependant on each other

Question 6

Biotic factors affecting distribution

Answer 6

Prey
Competitor
Predator

Question 7

Abiotic factors affecting distribution

Answer 7

Light
Temp
Rain
Oxygen
Pollution

Question 8

Examples of interdependence

Answer 8

Parasitism

Mutualism

Question 9

What is interdependence

Answer 9

Survival of one species is closely linked with another

Question 10

Examples of parasites

Answer 10

Flea
Head louse
Tapeworm
Mistletoe

Question 11

What is mutualism

Answer 11

When interdependence benefits both organism

Question 12

Example of mutualism

Answer 12

Large fish lose dead skin
Eaten by small fish

Nitrogen fixing bacteria get food from plant
Plants get nitrogen compound for healthy growth

Question 13

Sampling examples

Answer 13

Random

Belt transect

Question 14

Eutrophication

Answer 14

Hellahfhav

Question 15

Indicator species

Answer 15

Asses levels of pollution

Question 16

What grows on trees when there is air pollution

Answer 16

Lichens

Question 17

What fungus stops growing on roses when air pollution

Answer 17

Black spot

Question 18

What live in water with little oxygen

Answer 18

Bloodworms

Sludgeworms

Question 19

What lives in water with lots of oxygen

Answer 19

Stonefly larvae
Mayflies
Caddisflies

Question 20

What is decay

Answer 20

Break down of materials by microorganisms

Question 21

Controls of decay

Answer 21

Temp

Water and oxygen availability