[TOP] Chordata MCQs And Answers (Multiple Choice Questions)

These Chordata MCQs and Answers are most important for your upcoming biology examinations. We’ve prepared the list of Chordata MCQs that are most important and countable. You can improve your biology preparation through these Chordata MCQs and answers.

Chordata MCQs and Answers

1. Which among the following is not correct about Urochordata?

They are a classification under Protochordates

They have post anal tail only till their larval stage

Most of these are marine and almost extinct

They don’t contain gill clefts

2. Which among the following is incorrect about Vertebrata?

All chordates are vertebrates

In vertebrates, notochord is replaced by vertebral column in adults

They might not have post-anal tail after a certain period of time

Notochord is present during embryonic period

3. Agnatha is an example of ________

Sub-phylum

Phylum

Super-class

Class

4. Which among the following is incorrect about Agnatha?

These are also called as jawless fishes

Scales and fins are present

They adopt parasitic mode of nutrition

They have a circular mouth that acts as sucker

5. Which among the following is incorrect about Cyclostomata?

Their vertebral column is made of cartilage

Lamprey and hagfish are examples of this class

Their digestive system is complete with stomach, food pipe and intestines

Their circulatory system is closed with a 2 chambered heart

6. Which among the following is incorrect about Gnathostomata?

These are vertebrates with jaws

This super class is classified into Pisces and tetrapods based on their type of blood

Pisces use fins for their movement

Tetrapods use limbs for their movement

7. Which among the following is incorrect about chordates?

They must have notochord at every point of their life

They have a post anal tail

They have hollow dorsal nerve cord

They have a ventral heart

8. Which among the following is incorrect about chordata?

They have paired muscles

Post anal tail must be present in chordates

Their notochord vanishes after certain period of time

Pharyngeal gill slits are present

9. Which among the following is odd?

Urochordata

Cephalochordata

Vertebrata

Agnatha

10. Which among the following is incorrect about Pisces?

They have a streamlined body and a muscular tail that helps them in their movement

They are cold-blooded animals and can regulate the body temperature

Their heart is 2 chambered

Their skeleton is made of cartilage and bone

11. Which among the following is an incorrect statement about circulatory system in Pisces?

Their circulatory system is of closed type

They have two-chambered heart i.e. they have an auricle and a ventricle

They have a single circulatory system with gills i.e. oxygenated blood is pumped to body parts only once

Auricle is also called receiving chamber and ventricle is also called as pumping chamber

12. Which among the following is the main difference between Chondrichthytes and Osteichthytes?

Endoskeleton composition

Fins

Type of blood

Type of jaws

13. Which among the following is not correct about Chondrichthytes?

Chondrichthytes are jawless fishes

They have stream-lined body

Notochord is present throughout their life

Their skin is covered with pointed denticles

14. Which among the following is incorrect about Osteichthyes?

Swim bladder helps them retain buoyancy

Many of them are edible

Gills are separate without operculum

Skin covered with cycloid/ ctenoid scales

15. Which among the following is incorrect about Tetrapoda?

Lobe-finned fishes were ancestors of tetrapods

Tetrapoda are classified into 4 sub-classes i.e. Amphibia, Reptilia, Aves and Mammalia

The word tetrapoda means those that have four chambered heart

Most of them are terrestrial

16. Which among the following is incorrect about Amphibia?

They can live both on land and water

They are warm-blooded animals

They have three-chambered heart

They have gills/ lungs to respire

17. Which among the following is incorrect about the organ system in Amphibia?

In amphibians, blood passes the heart twice

The left auricle deals with deoxygenated blood

Ventricle deals with both oxygenated and deoxygenated blood

Tympanum represents ears in amphibians

18. Which among the following is incorrect about Reptilia?

These are cold-blooded animals with scales on them

All of them have a three-chambered heart

Kidneys are present for excretion

These are oviparous

19. Which among the following is incorrect about Aves?

Scales are absent and skin is dry except at the one end there is an oil gland

Endoskeleton is made of bones and they respire through lungs

They have cold-blooded animals

They are dioecious and oviparous

20. Which among the following is incorrect about Mammals?

They are mostly terrestrial and feed their young ones with milk

Scales are absent, instead hairs, sweat and oil glands on skin

They respire through lungs and their heart is four-chambered

Bats are the only mammals that lay eggs and feed their young ones with milk

Chordata MCQs and Answers

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