Which of the following are also called the amphibians of the plant kingdom?

Bryophytes

The correct answer is Option (4)- Bryophytes

Bryophytes are also called the amphibians of the plant kingdom.

Explanation:

• The term "amphibians of the plant kingdom" is used to describe bryophytes because, like amphibians in the animal kingdom, bryophytes are dependent on water for various stages in their life cycle.
• Bryophytes include mosses, liverworts, and hornworts. They are simple plants that lack vascular tissues for efficient water transport.
• Bryophytes require water for the fertilization process, and their spores need a moist environment to germinate and establish new individuals.

Therefore, the correct answer is Bryophytes.