What part on a starfish body helps them catch and hold their food?

Starfish don't actually have a mouth in the traditional sense. Instead, they have a mouth located on the underside of their body, in the center of their arms.

Here's how they use their bodies to catch and hold food:

* Tube feet: These are tiny, suction-cup-like structures located on the underside of their arms. Starfish use their tube feet to move, cling to surfaces, and capture prey.

* Stomach: When a starfish finds a prey animal, like a clam or mussel, it uses its tube feet to pry open the shell. It then extends its stomach out of its mouth and into the shell, engulfing the prey.

* Digestive enzymes: The starfish's stomach secretes digestive enzymes that break down the prey inside the shell, making it easier to consume.

So, while they don't have a "jaw" or "teeth" like other animals, starfish use their tube feet, stomach, and digestive enzymes to successfully catch and hold their food.