Why Do Skates and Rays Have Flattened Bodies, While Sharks

Why do skates and rays have flattened bodies, while sharks are torpedo shaped?

A) Sharks have a strong cartilaginous skeleton that helps them maintain a tubular shape, while skates and rays lack such a skeleton.
B) Skates and rays exchange gases across their skin and, thus, require a high surface- area- to- volume ratio, while sharks use gills to respire.
C) Sharks are more closely related to the tubelike lampreys than skates and rays are.
D) Skates and rays need enlarged pectoral fins to help them stay level in turbulent water, while sharks do not.
E) Sharks are streamlined for active hunting, while skates and rays wait on the ocean bed to ambush prey.

Correct Answer:

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Access For Free