Bilaterally symmetrical and acoelomate animals are exemplified by:

1. Platyhelminthes

2. Aschelminthes

3. Annelida

4. Ctenophora

Subtopic:  Phylum Platyhelminthes |
 78%
From NCERT
NEET - 2020
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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 |
 83%
From NCERT
NEET - 2020
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Amniotes
1. include amphibians, reptiles, birds, and mammals
2. are especially well adapted for fresh water
3. have physiological mechanisms for conserving water
4. typically excrete ammonia
5. gave rise to the amphibians

 
Subtopic:  Phylum Chordata |
From NCERT
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Identify the vertebrate group of animals characterized by crop and gizzard in its digestive system:
1. Amphibia
2. Reptilia
3. Aves
4. Osteichthyes
Subtopic:  Study of Aves & Mammals |
 77%
From NCERT
NEET - 2018
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Which of the following animals are true coelomates with bilateral symmetry ?

1. Adult Echinoderms

2. Aschelminthes

3. Platyhelminthes

4. Annelids

Subtopic:  Phylum Annelida | Phylum Echinodermata |
 83%
From NCERT
NEET - 2019
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Select the correct statements:
A: Platyhelminthes are triploblastic, pseudocoelomate and bilaterally symmetrical organisms.
B: Ctenophores reproduce only sexually and fertilization is external.
C: In tapeworm, fertilization is internal but sexes are not separate.
D: Ctenophores are exclusively marine, diploblastic and bioluminescent organisms.
E: In sponges, fertilization is external and development is direct.

Choose the correct answer from the options given below:
1. (A), (C) and (D) only 2. (B), (C) and (D) only
3. (A) and (E) only 4. (B) and (D) only
Subtopic:  Phylum Porifera | Phylum Coelenterata | Phylum Ctenophora | Phylum Platyhelminthes |
 67%
From NCERT
NEET - 2023
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Which one of these animals is not a homeotherm?
1. Macropus
2. Chelone
3. Camelus
4. Psittacula
Subtopic:  Study of Reptilia |
 78%
From NCERT
NEET - 2018
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Which of the following options correctly represent the characteristic features of phylum Annelida?

1. Triploblastic, unsegmented body, and bilaterally symmetrical.
2. Triploblastic, a segmented body, and bilaterally symmetrical.
3. Triploblastic, flattened body, and acoelomate condition.
4. Diploblastic, mostly marine and radially symmetrical.

Subtopic:  Phylum Annelida |
 88%
From NCERT
NEET - 2020
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Which one of the following organisms bears hollow and pneumatic long bones? 

1. Macropus

2. Ornithorhynchus

3. Neophron

4. Hemidactylus

Subtopic:  Study of Aves & Mammals |
 76%
From NCERT
NEET - 2021
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Match the following

List-I List-II
(a) Physalia i. Pearl oyster
(b) Limulus ii. Portuguese Man of War
(c) Ancylostoma iii. Living fossil
(d) Pinctada iv. Hookworm

Choose the correct answer from the options given below:

Options: (a) (b) (c) (d)
1. ii iii iv i
2. i iv iii ii
3. ii iii i iv
4. iv i iii ii
Subtopic:  Phylum Coelenterata | Phylum Aschelminthes | Phylum Arthropoda | Phylum Mollusca |
 87%
From NCERT
NEET - 2021
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