The sperm cells of liverworts, mosses, and ferns swim toward the archegonia guided by nucleic acid secreted by the egg cell. What type of movement does this represent?

Explanation

The movement of sperm cells toward the archegonia in response to chemical signals released by the ovum is known as chemotactic movement. This involves directed movement toward a chemical stimulus, distinguishing it from chemotropic movement (growth response), chemosastic movement (random movement), or haptonastic movement (response to touch).