B2h

Question 1

How have we saved the giant panda from extinction

Answer 1

• symbol of the WWF since 1961
• large area of forest are now protected, and hunting the giant panda is illegal
• many pandas (61%) live in captivity
• zoos around the world increase the population by breeding them, or exchange pandas for captive breeding programmes

Question 2

The Chatham island was set up to protect black robins, but why did it become a problem

Answer 2

• the habitat is too small, so some birds are being ,over to other islands
• there is very little genetic variation in the population so it would be vulnerable if there were any environmental changes
• there is increased competition with birds on the island

Question 3

What are the 2 different types of whales, what do they eat and how do they eat it

Answer 3

• baleen whale; eats small animals called krill, the whale sieves water through baleen plates in its mouth and traps the krill
• toothed whale; have lots of teeth to trap food such as squid

Question 4

Where do whales live

Answer 4

In the sea that contains the most amount of its prey; some whales will follow their prey to a different place (migration)

Question 5

What is a sustainable resource

Answer 5

A resource where if a few are taken, they will never die out. E.g. Whales, fish and trees. Oil is NOT a sustainable resource

Question 6

What are the parts of a whale used for (teeth, spermaceti, skin, sinews, ambergris, liver, bone, whale meat, oil)

Answer 6

Teeth- buttons, keys and jewellery
Spermaceti-high grade machine oil
Skin-belts, shoes, handbags and luggage
Sinews-tennis rackets
Ambergris(intestine)-perfume
Liver-oil
Bone-fertiliser and animal feeds
Whale meat-pet food and human food
Oil-high grade alcohol, shoe cream, lipstick, ointment, crayons, candles  fertiliser, soap and animal feeds

Question 7

Why was whaling reintroduced even after it was banned in 1986

Answer 7

Countries such as Norway, Iceland and Japan had small communities that used and relied on whaling for food and income

Question 8

When fossil fuels run out, whaling will become one of the alternative fuels. What factors must be accounted for when whaling

Answer 8

• pollution levels
• overfishing of the whales food source
• food webs in the ecosystem

Question 9

What 2 ways can the environment change

Answer 9

• naturally (eg ice age)
• artificially (eg due to human activity, like destruction of habitat and pollution of rivers or lakes by industry or sewage)