Question

Number of rows of tube feet in Sea Urchin is

• A. 5
• B. 7
• C. 10
• D. 15

Answer 1

The correct option is A 5

A) Sea urchins have five rows of paired tube feet on the bottom side of the body. They end with suckers which facilitate adhesion to the substratum.

B) Sea urchins have five rows of tube feet.

C) Ten would be the number of rows of tube feet, but tube feet occur in pairs so it is considered as five rows of tube feet.
D) Tube feet occur in pairs of two and there are five rows of tube feet.

So the correct answer is '5'.