b6.1 IMPORTANT

Question 1

agriculture

Answer 1

removed hedgrows
uses pesticides and herbicides

Question 2

conservation

Answer 2

controlled grazing
restriction of human access
feeding animals
reintroduction or species

Question 3

hunting / fishing

Answer 3

decreases populations
removes food for other species

Question 4

seed banks

Answer 4

seeds stored to be used in the future

Question 5

captive breeding

Answer 5

creates a stable healthy population
reintroduces species back into natural habitat
few breeding partners available so hard to maintain genetic diversity
may not be suitable for release into wild

Question 6

ecotourism

Answer 6

supports conservation while allowing people to observe wildlife

repeated use of the same path can cause erosion

Question 7

how scientists monitor air pollution

Answer 7

lichens (indicator species) measure type air pollution
air pollution dissolved in rain water especially soulful dioxide can damage lichens and prevent growth

lack of lichens is a sign of high pollution

Question 8

how organisms monitor water pollution

Answer 8

clean water - mayfly larva
low pollution - fresh water shrimp
high pollution- water louse
very high pollution - sludge worm