what are the features of planarians? warm blooded mammals, complex life cycle, hard protective coating…

what are the features of planarians? warm blooded mammals, complex life cycle, hard protective coating parasitic, ribbon - like body, scolex with hook and suckers regenerative abilities, simple body plan, shaped like an arrow

what are the features of planarians? warm blooded mammals, complex life cycle, hard protective coating parasitic, ribbon - like body, scolex with hook and suckers regenerative abilities, simple body plan, shaped like an arrow

Answer

Brief Explanations:

  1. Analyze the first option: Planarians are not mammals (they are flatworms), not warm - blooded, and have no hard protective coating. So this option is incorrect.
  2. Analyze the second option: The features of "parasitic, ribbon - like body, scolex with hook and suckers" belong to tapeworms, not planarians. So this option is incorrect.
  3. Analyze the third option: Planarians have remarkable regenerative abilities, a simple body plan (they are acoelomate flatworms), and their body shape is often arrow - like (or triangular) at the head end. This option correctly describes the features of planarians.

Answer:

regenerative abilities, simple body plan, shaped like an arrow