The spermatozoids of primitive plants are often positively chemotactic, swimming toward the female organs in response to a chemical secreted by the latter.
The spermatozoids of primitive plants are often positively chemotactic, swimming toward the female organs in response to a chemical secreted by the latter.
较原始的植物的游动精子有正向的趋化现象，总是游向由雌性器官所分泌的物质。