The living world

Question 1

What is an ecosystem?

Answer 1

a community of of plants and animals that interact with one another and their environments

Question 2

What is a biome?

Answer 2

a large scale ecosystem

Question 3

What do all ecosystems have?

Answer 3

• biotic components
• abiotic components

Question 4

What does abiotic mean?

Answer 4

non living things like soil types and air temperature

Question 5

What does biotic mean?

Answer 5

living organisms in an ecosystem

Question 6

What are consumers?

Answer 6

organisms that generate energy from feeding on other organisms

Question 7

What are decomposers?

Answer 7

fungi and bacteria that break down organic material

Question 8

What is a producer?

Answer 8

produces its own food through converting the suns energy

Question 9

What is a food chain?

Answer 9

shows how energy flows

Question 10

What is a food web?

Answer 10

multiple interconnected food chains

Question 11

What is biodiversity?

Answer 11

variety of plants and animals living in a given area

Question 12

What are nutrient cycles?

Answer 12

nutrients move from the environment into living organisms and recycled back to the environment

Question 13

What are three nutrient stores in a deciduous forest?

Answer 13

• litter
• biomass
• soil

Question 14

How does air circulate?

Answer 14

between high and low pressure

Question 15

What direction do winds blow?

Answer 15

towards low pressure and away from high pressure

Question 16

What happens at low pressure climates?

Answer 16

warm air moves in and rises cold and condenses to create wet weather

Question 17

What happens at high pressure climates?

Answer 17

cooler dry air falls creating dry conditions

Question 18

What are the three circulation cells?

Answer 18

• Hadley
• Ferrell
• Polar

Question 19

What happens at the equator?

Answer 19

the sun warms the earth air rises cold and condenses creating low pressure clouds and rain

Question 20

30 N and S of the equator cool air sinks creating high pressure

Answer 20

Hot desserts

Question 21

60 N and S of the equator warm surface winds meet cooler air creating low pressure

Answer 21

Temperate forests

Question 22

What happens at the Poles

Answer 22

cool air sinks creating high pressure cold environments

Question 23

What are trade winds?

Answer 23

surface winds near the equator that are heated by the sun and form clouds

Question 24

What are cold desserts climates like?

Answer 24

• descending dry air
• cold temperatures
• weak sun rays

Question 25

What are hot desert climates like?

Answer 25

• descending dry air
• high temperatures
• strong sun rays

Question 26

What are tropical rainforest climates like?

Answer 26

• lack of wind
• all year round sun
• high rainfall