What is the function of gizzard in earthworm?

How many digits does the forelimb and hindlimb of frog have respectively?

Which of the following is not a type of connective tissue?

Which of the following structures does the given figure represent?

How many ovaries are present in an earthworm?

Where is the female genital pore present in earthworm?

Identify the correct pathway of food ingested by an earthworm.

What does the question mark represent in the following figure?