6. About how many acres of tropical rain forest are cut every minute?
5 acres
10 acres
30 acres
50 acres
7. What is the typical texture of the bark on a tree in the rain
forest?
Thick--to protect against heat and water loss
Thin and smooth--to protect against creeping plants
It varies--making it easy to tell one tree from another
Thick and smooth--to protect against predation
8. Which of the following is NOT a requirement for a forest to
be classified as a "tropical rainforest?
Lie between the Tropic of Cancer and the Tropic of Capricorn
Receive rainfall regularly throughout the year (100-400 inches a year)
Support at least 50 species of animals and insects per acre
Remain warm and frost free all year long (mean temperatures are between
70¡ and 85¡F) with very little daily fluctuation
9. Which of the following is not one of the 4 layers of the rainforest?
Emergent Layer
Understory
Canopy
Forest Floor
First Story
10. When rain forest trees are felled or burned, they:
Contribute to diversity in the forest by allowing in sunlight
Help new trees to grow better by opening up space
Emit so much CO2 that they are the second largest factor contributing
to global warming
Can grow back within a few years due to abundant rain in the forest
11. Where are most of the nutrients of a rainforest ecosystem stored?
In vegetation
In animals
In the soil
12. In most tropical countries how many trees are replanted for
every 10 cut?
1
4
6
8
13. Where are most animals in the rainforest found?
On the floor, where there is less chance of injury
In low-hanging branches, where they can escape predation
In the canopy, where most of the vegetation is located
Most animals spend equal amounts of time all over the rain forest
14. What are the functions of the rain forest root system?
It holds soil in place, preventing erosion
It absorbs rainfall and regulates water runoff
It replenishes groundwater supplies and regulates the flow of water
in rivers and streams by storing and slowly releasing water throughout
a year's time
All of the above
15. Almost 65% of Central America has been cleared for what?
Pastureland for grazing cattle which are exported as meat
Sustainable agriculture projects
Homes for people
Growing coffee and bananas
16. In the past decade, how many tribes of indigenous peoples have
been wiped out in Brazil?
2
8
10
18
26
17. Which of the following diseases or medical problems have been
cured, solved or eased with plants discovered in rainforests?
Malaria (the bark of the cinchona tree produces quinine)
A muscle relaxant during surgery (curare, a vine extract used by indigenous
peoples to poison arrows and darts)
Strokes, seizure, depression and Alzheimer's disease (secretions of
an Amazonian frog called Phyllomedusa bicolor)
A and B
All of the above
18. Leaf Cutter ants in the rain forest do what to collect the
fungus on which they rely for food?
They forage for leaves and flowers, bring them back to the nest, chew
them to a pulp, and spit them out as a growing medium for the fungus
During daylight hours, they gather the fungus from under certain leaves
During evening hours, they gather fungus from leaves on trees, protecting
the trees from fungus invasion
Leaf Cutter ants do not rely on fungus for food
19. It is estimated that what percent of regrowth in tropical cleared
areas is due to fruit eating bats, who do not avoid cleared land the
way birds do?
20. What are the most unique features of the Aye-Aye, a primate
from rain forests in Madagascar?
A unique corkscrew tail and incredibly strong fingers
Huge eyes and one extremely long finger
Eye patterns on the back of its head
Blue-green markings on its shoulders
