En anglais

How rainforest plants adapt

Sciences · Forêts tropicales · de 7 à 9 ans

Nom ______________________ Date ____________

Which shape and position identify buttress roots?
- Wide, wall-like roots at the tree's base
- Thin, hanging roots on branches high in the tree
- Loose, floating roots far from the tree's base
What does a rainforest leaf's drip tip help it do?
- Catch insects for food
- Let rainwater drain off the leaf
- Store extra sunlight inside the pointed end
An orchid growing on a tree branch for support can be an epiphyte.
En entourer un : Vrai Faux
How can growing on a high branch help an epiphyte?
- Its leaves can reach more light above the ground
- It feeds on the tree's food
- It can grow without receiving any light on its leaves
How can wide buttress roots help a tall tree survive?
- They turn the base into a rain bucket
- They replace every deeper root
- They help support the tree and keep it steady
An epiphyte grows on a branch. A liana climbs a tree from the ground. How many different ways of reaching light are described?
Réponse : ______________
Zane says an epiphyte gets its food from the tree supporting it. Which statement corrects his claim?
- It takes food from the tree whenever rain wets the branches
- It receives all its food from roots buried deep below the tree
- It makes its own food using light; the tree gives support
Nia sees a leaf with an unusual bump. She calls the bump an adaptation because it looks different. What evidence would support her claim?
- Whether a visitor likes the bump's shape and color
- Whether the bump helps the plant survive in its home
- Whether the bump has a short name in a plant book

Corrigé

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Wide, wall-like roots at the tree's base · Buttress roots spread from a tree's base like wide wooden walls.
Let rainwater drain off the leaf · A drip tip helps rainwater run off a leaf.
Vrai · An epiphyte grows on another plant for support. Some orchids grow this way.
Its leaves can reach more light above the ground · Growing above the ground can help an epiphyte reach light to make its own food.
They help support the tree and keep it steady · Buttress roots help steady a tall tree. These wall-like roots do not form a rainwater bucket, and having them does not mean the tree has no deeper roots.
2 · Growing on a branch and climbing from the ground are two different ways of reaching light.
It makes its own food using light; the tree gives support · An epiphyte uses the tree for support and makes its own food. Water and nutrients are different from food.
Whether the bump helps the plant survive in its home · An adaptation helps a living thing survive. Evidence of that benefit would support Nia's claim; an unusual look, a name or someone's preference would not.