Podcast
Questions and Answers
What is the purpose of drip tips on leaves in the rainforest?
What is the purpose of drip tips on leaves in the rainforest?
- To provide shade for the plant
- To retain water and prevent dehydration of the leaves
- To allow water to run off quickly without damaging the leaves (correct)
- To attract insects for pollination
How do epiphytes in the rainforest obtain their nutrients?
How do epiphytes in the rainforest obtain their nutrients?
- By parasitizing other plants in the rainforest
- From the air and water, not from the soil (correct)
- By absorbing nutrients through their extensive root systems
- By relying on symbiotic relationships with insects
What is the function of buttress roots in the rainforest?
What is the function of buttress roots in the rainforest?
- To provide support for large trees (correct)
- To store excess water during dry periods
- To absorb nutrients from the soil
- To anchor the tree in the ground
What type of roots do trees and plants in the rainforest have to absorb nutrients?
What type of roots do trees and plants in the rainforest have to absorb nutrients?
In the Gersmehl model, which nutrient store is described as huge in tropical rainforests?
In the Gersmehl model, which nutrient store is described as huge in tropical rainforests?
Why is the biomass nutrient store largest in tropical rainforests according to the Gersmehl model?
Why is the biomass nutrient store largest in tropical rainforests according to the Gersmehl model?
Why is the soil nutrient store relatively small in tropical rainforests according to the Gersmehl model?
Why is the soil nutrient store relatively small in tropical rainforests according to the Gersmehl model?
Why is the litter nutrient store small in tropical rainforests according to the Gersmehl model?
Why is the litter nutrient store small in tropical rainforests according to the Gersmehl model?
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Study Notes
Rainforest Adaptations
- Drip tips on leaves in the rainforest serve to remove excess water, reducing fungal growth and promoting water runoff.
Epiphyte Nutrient Acquisition
- Epiphytes in the rainforest obtain their nutrients from the air, rain, and debris that collects on their leaves and stems.
Buttress Roots
- Buttress roots in the rainforest provide stability and support to trees on shallow, nutrient-poor soils.
Root Systems
- Trees and plants in the rainforest have shallow, spreading roots to absorb nutrients from the soil.
Gersmehl Model: Nutrient Stores
- In the Gersmehl model, the biomass nutrient store is described as huge in tropical rainforests.
- The biomass nutrient store is the largest due to the rapid growth and high biomass production in tropical rainforests.
- The soil nutrient store is relatively small in tropical rainforests because nutrients are quickly absorbed by plants or lost through leaching.
- The litter nutrient store is small in tropical rainforests because of rapid decomposition and nutrient cycling.
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