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First all vertebrates are animals.

Second all fruits are plants.

It is estimated that the total number of plant species is of the order of 400,000.

Projections for the total number of animal species on Earth range from 2 million to 50 million.

Therefore the largest of the two kingdoms by number of species are the animals.

However as plants form the basis of the food chain, we can say with certainty that the largest kingdom by mass of biological material is easily the plant kingdom.

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8y ago

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