lu6 tropical rainforest biome

Question 1

6 condition

rainfall-water abundance, risks, plants growth-soil,forest thickness sunlight penetration - how long, plants species

Answer 1

1) hot, rains a lot = (80-180 inches per year) = water abundance promote growth of bacteria, fungi - harmful to plants
2) heavy rainfall = increases the risk of flooding, soil erosion, rapid leaching of nutrients from soil
3) plants grow = rapidly, quickly. use up any organic material left from decomposing plants, animals. result = a soil that is poor.
4) Forest very thick= not much sunlight able to penetrate to forest floor
5) Plants at the top of the rainforest must withstand 12 hours of intense sunlight all year
6) diverse plant species available

Question 2

leaves

Answer 2

• drip tip: cope with exceptionally high rainfall

Question 3

roots

3 - b,p,s, function

Answer 3

buttresses, prop or stilt: stability

Question 4

to reach the sunlight

Answer 4

some plants climb/grow on plants

Question 5

flowers on the forest floor are designed to

pollinate

Answer 5

lure animal pollinators: relatively no wind on the forest floor to aid in pollination

Question 5

shallow roots

function, to capture

Answer 5

capture nutrients from the top level of soil.

Question 5

bromeliads are epiphytes (plants that live on other plants); instead of collecting water with roots

Answer 5

collect rainwater into a central reservoir from which they absorb the water through hairs on their leaves

Question 5

to speed the runoff of water

Answer 5

• smooth bark
• smooth or waxy flowers

Question 6

epiphytic orchids have aerial roots which

how do they absorb m&w…

Answer 6

cling to the host plant:
* absorb mineral
* absorb water from the atmosphere

Question 7

how many plant adaptations in tropical biome

Answer 7

8