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Tropical Rainforest Ecosystems

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Questions and Answers

What is the average annual rainfall in the tropical rainforest?

200 to 300 inches

80 to 180 inches (correct)

40 to 100 inches

30 to 60 inches

What are some problems associated with the abundance of water in the tropical rainforest?

Excessive drought

High soil fertility

Decreased risk of flooding

Increased growth of harmful bacteria and fungi (correct)

Why does heavy rainfall in the tropical rainforest increase the risk of soil erosion?

It leads to excessive soil fertility

It reduces sunlight reaching the forest floor

It washes away essential nutrients from the soil (correct)

It promotes the growth of diverse plant species

What is a consequence of rapid leaching of nutrients from the soil in the tropical rainforest?

Decrease in nutrient availability for plants Signup and view all the answers

Why do plants at the top of the rainforest canopy need to be able to survive intense sunlight?

To reduce water loss through transpiration Signup and view all the answers

How do drip tips and waxy surfaces benefit tropical rainforest plants?

They discourage growth of bacteria and fungi Signup and view all the answers

What is the purpose of buttresses, prop roots, and stilt roots in tropical rainforest plants?

To support plants in shallow soil Signup and view all the answers

Why are flowers on the forest floor of tropical rainforests designed to lure animal pollinators?

Due to the lack of wind on the forest floor Signup and view all the answers

What is a common characteristic of epiphytic plants like bromeliads in tropical rainforests?

They have aerial roots that cling to host plants Signup and view all the answers

How do epiphytic orchids in tropical rainforests absorb water?

Through their aerial roots that absorb water from the atmosphere Signup and view all the answers