Question

Some animals have internal skeleton of cartilage such as shark and stingray they feed on otger animals by predation what is the importance of cartilage in their
life

Answer 1

Answer:

They include sharks, rays, and skates (elasmobranchii) and chimeras (holocephali). Sharks, rays, skates, and chimaeras (also know as rat fishes) all have cartilaginous skeletons. Cartilage is less dense than bone, allowing sharks to move quickly through the water without using too much energy.

Answer 2

Answer:

Importance of cartilage in our life are :

1) it's support internal organs to stay thir same position and

2) it protect internal organs

INTERNAL ORGANS ARE - HEART,LUNGS,STOMACH SYSTEM