Answered

Select all of the following that are correct functions of the corona in rotifers.


  • filtering water for respiration
  • digesting food
  • directing planktonic organisms and decomposing organic material toward the mouth
  • creating water currents that propel the animal

Verified Answer :

Final answer:

The corona in rotifers has two main functions: directing food particles toward the mouth and creating water currents for locomotion. It does not filter water for respiration or digest food directly. Understanding these functions highlights the importance of the corona in the feeding and movement of rotifers.


Explanation:

Functions of the Corona in Rotifers


Rotifers are microscopic aquatic animals known for their whirling cilia, which form a structure called the corona. The corona serves several important functions that enable rotifers to thrive in their environments. Below are the correct functions of the corona in rotifers:



  1. Directing planktonic organisms and decomposing organic material toward the mouth: The cilia of the corona create water currents that help in collecting food particles from the water, guiding them into the mouth of the rotifer.

  2. Creating water currents that propel the animal: The coordinated movement of the cilia not only helps in feeding but also contributes to locomotion by propelling the rotifer through the water.


However, the following options are incorrect:



  • Filtering water for respiration: While the corona helps in feeding, rotifers do not filter water for respiration in the same way that some other organisms do.

  • Digesting food: Digestion occurs in the digestive tract, not in the corona. The corona is primarily involved in the movement of food particles toward the mouth.


In summary, the functions of the corona in rotifers primarily involve feeding and locomotion through the movement of cilia, rather than respiration or digestion.


Learn more about Functions of the corona in rotifers here:

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