Question

The sequence of communities of primary succession in water is

• A. Phytoplankton, sedges, free-floating hydrophytes, rooted hydrophytes, grasses and trees.
• B. Phytoplankton, free-floating hydrophytes, rooted hydrophytes; sedges, grasses and trees.
• C. Free-floating hydrophytes, sedges, phytoplankton, rooted hydrophytes, grasses and trees.
• D. Phytoplankton, rooted submerged hydrophytes, floating hydrophytes, reed swamp, marsh meadow and trees.

Answer 1

Answer: (D)

In the primary succession in water, the pioneers are small phytoplanktons. They are replaced with time by rooted submerged plants, then by floating hydrophytes, sedges grasses and finally trees.