Question

What are the types of tactic movements

Answer 1

Answer:

Paratonic or Induced Movements of Locomotion or the Tactic Movements or Taxes: (1) Phototactic Movements or Phototaxis: These movements occur in response to an external stimulus, the light and are exhibited by zoospores and gametes of certain algae e.g., Chlamydomonas, Volvox, Ulothrix, Cladophora etc.

Explanation:

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Answer 2

Answer:

These tactic movements are in response to unidirectional light. Examples: Free swimming algae, zoospores, gametes when swim towards the diffused light are said to be positively phototactic and when they move away from the strong light, they are called negatively phototactic

Explanation:

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