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听力文章有名的西红柿辩论

[导读]:听力文章有名的西红柿辩论 导读:本文听力文章有名的西红柿辩论,仅供参考,如果觉得很不错,欢迎点评和分享。 The Great Tomato Debate In 1893, the U.S. Supreme Court heard a case that h...

听力文章有名的西红柿辩论

导读:本文听力文章有名的西红柿辩论,仅供参考,如果觉得很不错,欢迎点评和分享。

The Great Tomato Debate

In 1893, the U.S. Supreme Court heard a case that hinged on whether the tomato was a fruit or a vegetable.

Defining A VegetableAccording to botanists, most of the edible parts of a plant are vegetables. Vegetables can be a root, stem, leaf, or flower. Even bulbs, like onions, and buds like brussels sprouts are vegetables.

Defining FruitsA fruit, on the other hand, is always the matured ovary of a flowering plant. Fruit is formed when pollen, which carries sperm, lands on the sticky part of the flower.

The sperm travel from the pollen grain into the ovary then into the ovule where one fertilizes the egg. Once the egg is fertilized, the ovule becomes a seed, and the whole ovary becomes a fruit. This is why fruits usually contain seeds.

An Unlikely FruitOf course, when we generally think of fruit we think of sweet fruits like apples and pears that are eaten raw or baked in dessert. We don’t think of tomatoes or cucumbers as fruit, although they are fruit because they develop from the ovary of the plant.

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