Rainforest Plant Adaptations
Describe adaptations that help rainforest plants survive: drip tips shed water, buttress roots support tall trees, epiphytes grow on other plants for support and access to light, and lianas climb from the ground toward the canopy. Distinguish absorbed water and nutrients from the food plants make.
What a learner can do afterwards
- Describe at least three plant adaptations: drip-tip leaves, buttress roots, and epiphytes
- Explain the purpose of each adaptation, such as drip tips helping leaves shed water and buttress roots helping support tall trees
- Use the word adaptation to mean a feature that helps an organism survive in its environment
1 · Read
You have met rainforest trees, orchids and climbing vines. An adaptation is a feature that helps a living thing survive in its environment. To judge a possible adaptation, ask how the plant's own feature helps it survive. An unusual look alone does not show this. Features can help plants shed rainwater, stay supported or reach light.
Some rainforest leaves have a long, pointed end called a drip tip. Water runs toward the tip and drips off. This feature helps the leaf shed water after rain.
Buttress roots spread from the base of some tall trees like wide wooden walls. They help support the tree. These roots do not mean that all rainforest soil is thin or that the tree has no deeper roots.
An epiphyte grows on another plant for support. Some orchids and bromeliads grow this way on branches. Growing above the ground can help leaves reach light. Epiphytes make their own food using light; they do not take food from the supporting tree. They absorb water and nutrients from their surroundings.
Lianas are woody vines with roots in the ground. They climb trees toward light without growing a large supporting trunk of their own. Growing on a branch and climbing from the ground are two different ways to reach light.
Drip tips shed water. Buttress roots support trees. Epiphytes use plants for support, while lianas climb from the ground. These features help plants survive.
Rainforest plant-adaptation teaching, questions and flashcards written for this dataset.
The readings and flashcard text were written for this dataset.
More to read
Two ways to use a tree for support
A liana has roots in the ground and a woody stem that climbs a tree. The tree supports the climbing stem as the vine reaches toward light.
Some orchids grow on branches. These orchids are epiphytes: plants growing on other plants for support. Their position above the ground can help their leaves reach light too.
Neither a supporting branch nor a supporting trunk is a ready-made food supply. These plants make their own food using light. They also absorb water and nutrients. Support, water, nutrients and food are different parts of what a plant needs.
Connect a feature to its job
A pointed leaf tip and a wide root have different jobs. A drip tip helps water leave a leaf after rain. Water travels toward the point and drops off.
Buttress roots spread from a tree's base like walls. They help support the tree. Seeing them does not tell you that all the soil is shallow or that every other root stays near the surface.
An adaptation is a feature that helps a living thing survive in its environment. When you explain one, name the feature and connect it to its job. For a drip tip, describe water draining. For buttress roots, describe support.
2 · Watch
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