Question

pelvic fins are located close to the gill slits, and they provide stopping, steering, stability, and turning for the shark true false pelvic and anal fins assist with stability, turning, and stopping true false cartilaginous fish have scales true false an advantage of having dermal denticles is extended protection creating a very tough outer layer of skin, but this comes at a cost since they are heavy true false

Explanation:

First Question:

Pelvic fins of sharks are actually located near the cloaca, not close to gill slits. Also, their functions for stopping, steering, etc. are not as described (pectoral fins have more role in steering, etc.). So the statement is false.

Pelvic and anal fins do assist sharks (and other fish) with stability, turning, and stopping. This is a correct description of their functions.

Cartilaginous fish (like sharks) have dermal denticles, which are a type of scale - like structure (placoid scales). So they do have scales (in the form of dermal denticles).

Answer:

B. False

Second Question: