Ecology - Food Chain

Question 1

what is a POPULATION

Answer 1

number of all organisms of A PARTICULAR species in a ecosystem at any one time

Question 1

what is a COMMUNITY

Answer 1

number of all populations of ALL

Question 2

what is an ECOSYSTEM

Answer 2

a distinct self supporting system of organisms

Question 3

what is a HABITAT

Answer 3

a place where a specific organism lives

Question 4

PRODUCER

Answer 4

makes energy via photosynthesis

Question 5

PRIMARY CONSUMER

Answer 5

feeds on producer

Question 6

air pollution

Answer 6

CO > reduces capacity of blood to carry oxygen
SO2 > dissolves in water to make acid rain

Question 7

GHGs

Answer 7

CO2 NO2 H2O CH4 enhanced greenhouse effect
CFCs destroy ozone layer

Question 8

Enhanced Greenhouse Effect

Answer 8

sea level rise
changes in migration patterns
extreme weather
global warming

Question 9

eutrophication

Answer 9

fertilisers put on soil. mineral ions get washed for soil into rivers and lakes. algae reproduce rapidly. block out light. plants below water die. algae dies. bacteria break down algae and plants. use up O2 to respire. water becomes anoxic.

Question 10

Sewage

Answer 10

decomposers break down sewage. increase in number of decomposers. decomposers use up oxygen in water respiring. water becomes anoxic. living organisms in the water die

Question 11

deforestation

Answer 11

leaching and soil erosion increase as roots no longer hold soil and wash into bodies of water