Select the correct statements with reference to chordates.
A: Presence of a mid-dorsal, solid and double nerve cord.
B: Presence of closed circulatory system.
C: Presence of paired pharyngeal gill slits
D: Presence of dorsal heart.
E: Triploblastic pseudocoelomate animals.
Choose the correct answer from the options given below:
1. C, D and E only 2. A, C and D only 
3. B and C only 4. B, D and E only
Subtopic:  Phylum Chordata |
 81%
From NCERT
NEET - 2023
Please attempt this question first.
Hints
Please attempt this question first.

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R)
Assertion (A): All vertebrates are chordates but all chordates are not vertebrates.
Reason (R): Notochord is replaced by vertebral column in the adult vertebrates.
 
In the light of the above statements, choose the most appropriate answer from the options given below:
1. (A) is false, (R) is true.
2. Both (A) and (R) are true and (R) correctly explains (A).
3. Both (A) and (R) are true and (R) does not correctly explain (A).
4. (A) is true, (R) is false.
Subtopic:  Phylum Chordata |
 74%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Which one of the following features are not true for chordates?
(a) Heart is dorsal.
(b) Pharynx is perforated by gill slits.
(c) Central nervous system is ventral, solid and single.
(d) Post-anal tail is present.
(e) Notochord is present.
  
Choose the most appropriate answer from the option give below:

1. (e) only 2. (a), (d) and (c) only
3. (b) and (c) only 4. (a) and (c) only
Subtopic:  Phylum Chordata | Comparative study of Cartilagenous & Bony Fishes |
 70%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

advertisementadvertisement

Which of the following statements are true for the phylum-Chordata?

(a) In Urochordata, notochord extends from head to tail and is present throughout their life
(b) In Vertebrata, notochord is present during the embryonic period only
(c) Central nervous system is dorsal and hollow
(d) Chordata is divided into 3 sub-phyla : Hemichordata, Tunicata and Cephalochordata


1. (c) and (a)
2. (a) and (b)
3. (b) and (c)
4. (d) and (c)

Subtopic:  Phylum Chordata |
 67%
From NCERT
NEET - 2020
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

All vertebrates are chordates but all chordates are not vertebrates, why?

1.  Notochord is replaced by a vertebral column in the adults of some chordates.
2. The ventral hollow nerve cord remains throughout life in some chordates.
3. All chordates possess a vertebral column.
4. All chordates possess notochords throughout their lives. 

Subtopic:  Phylum Chordata |
 82%
From NCERT
NEET - 2020
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Consider the following features:
A: Organ system level of organisation
B: Bilateral symmetry
C: True coelom with segmentation of body
Select the correct option of animal groups that possess all the above characteristics:

1. Annelida, Mollusca and Chordata
2. Annelida, Arthropoda and Chordata
3. Annelida, Arthropoda and Mollusca
4. Arthropoda, Mollusca and Chordata
Subtopic:  Phylum Annelida | Phylum Arthropoda | Phylum Chordata |
 70%
From NCERT
NEET - 2019
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

advertisementadvertisement