paper 1 - ecosystems

Question 1

case study?

Answer 1

fresh water pond

Question 2

what is a producer?

Answer 2

an organism that produces its own food

Question 3

2 examples of producers?

Answer 3

• algae
• lily pad

Question 4

what is a consumer?

Answer 4

a living creature that eats other living things

Question 5

2 examples of a consumer?

Answer 5

• duck
• perch

Question 6

what is a decomposer?

Answer 6

an organism that breaks down organic material for nutrients

Question 7

2 examples of decomposers?

Answer 7

• worms
• bacteria

Question 8

what is a food chain?

Answer 8

a line showing the transfer of energy from one organism to another

Question 9

what is a food web?

Answer 9

a network of food chains showing how they all link together

Question 10

how does farming negatively effect a pond?

Answer 10

fertilisers can contaminate the water which kills species

Question 11

name all 6 global biomes?

Answer 11

• polar
• tundra
• deserts
• tropical rainforest
• deciduous forest
• coniferous forest

Question 12

what is meant by interdependence?

Answer 12

all parts of an ecosystem that are interdependent. this means if one factor changes, it affects the other organisms within the ecosystem

Question 13

what can changes to one part of an ecosystem cause?

Answer 13

it can cause problems further along the food chain

Question 14

where are deciduous forests found?
what are the like in winter and summer?

Answer 14

• found mostly in mild latitudes where rainfall is all year
• summers are warm and winters are mild

Question 15

where are tropical rainforests found?
what is the weather like?

Answer 15

• found near the equator
• weather is hot and wet. high levels of rain due to sunlight heating moist air

Question 16

where are temperature grassland found?
what are summers and winters like?
what are nutrient rich soils good for?

Answer 16

• between north and south of the equator
• summers are hot and winters cold
• good for growing crops

Question 17

where are tropical grassland found?
what is the weather like?

Answer 17

• found between tropics
• dry and wet with low rainfall

Question 18

where are coniferous forests found?
what are summers and winters like?

Answer 18

• found between 50 and 60 degrees north of the equator
• summers are short and winters are long and cold

Question 19

where are mediterranean biomes found?
what are summers and winters like?

Answer 19

• between 30 and 45 degrees north and south of the equator
• dry hot summers and mild wet winters

Question 20

where are tundras found?
what are summers and winters like?
the ground is generally what?

Answer 20

• high latitudes where rainfall is low
• summers are short and winters are long and cold
• generally frozen (permafrost)