Grade 4 Science - End of Semester 1 Review

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Why does every food chain start with a producer? Where does the producer get its energy from? 为什么每个食物链都以生产者开始？生产者从哪里获取能量？

Producers make their own food; they get energy from the Sun. 生产者自己制造食物；它们从太阳获取能量。

Explain the difference between a Herbivore and a Carnivore. 解释草食动物和肉食动物之间的区别。

A herbivore eats only plants. A carnivore eats only animals. 草食动物只吃植物。肉食动物只吃动物。

In a food chain where a cat eats a mouse, which animal is the Predator and which is the Prey? 在一个猫吃老鼠的食物链中，哪种动物是捕食者，哪种是猎物？

The cat is the predator. The mouse is the prey. 猫是捕食者。老鼠是猎物。

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