Question

which plant group is known as amphibians of the plant kingdom and why

Answer 1

Amphibians are those organisms which live on both land and in water. Bryophytes are called amphibians of the plant kingdom because these plants though live in soil but they need water for sexual reproduction. The sperm of bryophyte (antherozoids) are flagellate and need water to swim to the eggs. In other words, as these plants need water for reproduction unlike other plants, they are called as amphibians. 

Answer 2

The Bryophytes are called as amphibians of the plant kingdom because they cannot live away from the water.They need water for reproduction.

While reproducing the gamete formed by the Bryophytes will need water to travel from male gametophyte to the femelle one.

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