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ecology · biology education

Grassland food chain

A grassland food chain follows one possible route for energy through an ecosystem. Sunlight supports grass, the producer. A grasshopper eats the grass, then a frog eats the grasshopper, a snake eats the frog, and a hawk eats the snake. The arrows point from the organism being eaten toward the consumer, which shows the direction energy moves. Decomposers receive organic matter from organisms that die and return nutrients to the ecosystem. This is a simplified chain: real grasslands contain many overlapping feeding relationships. Use it to introduce trophic levels before expanding the lesson into a food web.

類型 流程圖標準 Sugiyama layered DAG + orthogonal routing引擎 schematex-flowchart更新時間 2026/9/24
Grassland energy flow
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需求

“Draw a grassland food chain with sunlight feeding grass, then grasshopper, frog, snake, and hawk, plus decomposers receiving dead grasshoppers, frogs, snakes, and hawks.”

接著試試Add a mouse that eats grass.Change the top predator to an owl.
這張圖裡有什麼

看懂背後的決策。

01Producer first

Begin with sunlight and grass.

02Consumer order

Arrange animals from herbivore to top predator.

03Energy direction

Point arrows from food to consumer.

04Decomposition

Add decomposers for dead organisms.

Use this chain for a classroom example of energy transfer in a temperate grassland.

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常見問題

常見問題

What is the producer in this chain?

Grass is the producer because it uses sunlight to make its own food.

Which way should food-chain arrows point?

Point arrows from the food source toward the organism that receives the energy.

Why include decomposers?

They break down dead organic matter and help return nutrients to the ecosystem.