Class Chondrichthyes MCQ - Practice Questions with Answers
Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET
Quick Facts
-
Class Chondrichthyes - Characteristics Features is considered one of the most asked concept.
-
15 Questions around this concept.
Solve by difficulty
EASYA marine cartilaginous fish that can produce an electric current is
Concepts Covered - 1
Class Chondrichthyes - Characteristics Features
- This class contains the fishes with cartilaginous endoskeleton.
- Sharks, rays, skates, saw-fishes etc. belong to this class.
- The notochord persists throughout their life
- They have a tough skin covered with placoid scales.
- They have powerful jaws with modified placoid scales called the teeth. The mouth is ventrally located.
- The gill slits are not protected by an operculum.
- They do not have a swim bladder due to which they swim continuously to prevent sinking.
- They have a two-chambered heart with one atrium and one ventricle.
- They are cold-blooded.
- They have separate sexes. Fertilization occurs internally. They can be oviparous or viviparous.
Examples:
|
Shark (dogfish) Scoliodon |
|
|
Electric Ray Torpedo |
|
|
Sting Ray |
|
|
Rays and Skates |
|
Study it with Videos
Class Chondrichthyes - Characteristics Features"Stay in the loop. Receive exam news, study resources, and expert advice!"
Get Answer to all your questions
Begin a career in Medical and Allied Sciences. Admissions Open for
Allied & Healthcare programs | 20+ Partner Universities & Institutes | 98% placement record
Amity University-Noida Health and Allied Sciences Admissions
ApplyAmongst top 3% universities globally (QS Rankings) | Wide Range of scholarships available
SRM Kattankulathur Dental College Admissions 2026
ApplyRanked #19 by NIRF, NAAC A++ Accredited | Recognized by dental council of India
SRM Medical College Admissions 2026
ApplyRanked #18 by NIRF, NAAC A++ Accredited | Unmatched clinical exposure with over 7 lakh patients yearly