时差N小时:有名的西红柿辩论 The Great Tomato Debate

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

According to botanists, most of the edible parts of a plant are vegetables. Vegetables can be aroot, stem, leaf, or flower.

Even bulbs, like onions, and buds like brussels sprouts are vegetables.

A fruit, on the other hand, is always the matured ovary of a flowering plant.

Fruit is formed whenpollen, 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 theegg.

Once the egg is fertilized, the ovule becomes a seed, and the whole ovary becomes a fruit.

This is why fruits usually contain seeds.

Of course, when we generally think of fruit we think of sweet fruits like apples and pears that areeaten raw or baked in dessert.

We don't think of tomatoes or cucumbers as fruit, although theyare fruit because they develop from the ovary of the plant.

Back to the 1893 court case.

The Supreme Court declared that tomatoes were vegetablesbecause they are usually eaten cooked like vegetables.

The decision allowed the court to uphold atax on imported tomatoes because, at that time, vegetables were taxed but fruits were not.

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