Multiple Choice Questions on Phylum Chordata with Answers Pdf
Chordates MCQs with Answers Pdf :
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Important points to Remember about Phylum Chordata :
- Phylum Chordata is the largest of the deuterostome phyla. All the chordates possess three unique characteristics at some stage in their life history. These are:
- The dorsal hollow or tubular nerve cord,
- A longitudinal supporting notochord,
- A series of pharyngeal gill slits,
- Post anal tail.
- Phylum Chordata has been divided into two groups: Acrania (Protochordata) and Craniata (Euchordata).
- (1) Acrania: All marine primitive chordates. Lacking a head, a skull or cranium, a vertebral column, jaws, and a brain. It is divided into three subphyla- Hemichordata, Urochordata, and Cephalochordata chiefly on the character of the notochord present. removes hemichordate as a separate phylum of invertebrates).
- (2) Craniata: It includes single subphyla-vertebrata. (Recent opinion Craniata is divided into two subdivisions: Agnatha (Jawless vertebrate): has two classes Ostracodermi and Cyclostomata.
- Gnathostomata: It is further divided into two superclasses: (i) Pisces: It is divided into classes: Placodermi, Chondrichthyes, and Osteichthyes (ii) Tetrapoda: It is divided into four classes: Amphibia, Reptilia, Aves, and Mammalia.
Chordates MCQs with Answers Pdf
1. Which feature in the development of frog is a general characteristic of amphibia and not of otfrogsvertebrates________
(a) The almost entire replacement of the notochord by vertebrate
(b) The formation of gill pouches and lungs from the anterior part of the gut
(c) The formation of external gills
(d) The breakdown of tail tissues at metamorphosis
Answer: D
Read: MCQ on Phylum Annelida
2. Amniota’ includes the following classes of the phylum chordata___________
(a) Reptiles and saves
(b) Aves and mammals
(c) Amphibia, reptilia, and saves
(d) Reptilia, saves, and mammals
Answer: D
3. Monotremata is a group of animals that include________
(a) Fishes with single gill apertures
(b) Insects with a single pair of spiracles
(c) Mammals in which testes lie in the abdominal cavities
(d) Mammals whose females are provided with a pouch for carrying the young ones
Answer: C
Read: MCQ on Phylum Platyhelminthes
4. Which one of the following is not a true snake?
(a) Coral snake
(b) Rat snake
(c) Glass snake
(d) Blind snake
Answer: C
5. The male frog can be distinguished from the female frog by________
(a) The green color of the skin
(b) The presence of vomerine teeth
(c) The presence of vocal sacs
(d) The large spots on the skin
Answer: C
6. The turtles have added an extensive exoskeleton although the internal skeleton is still present. This makes them inferior to their relative crocodiles in________
(a) Limiting the growth in the size of the body
(b) Increasing the body weight without any specific purpose
(c) Reducing the mobility of the body
(d) Decreasing the space for accommodating muscles
Answer : A
Read: MCQ on Phylum Coelenterata
7. The correct classification of Balanoglossus is_________
(a) Chordata > Vertebrata > Enteropneusta
(b) Chordata > Vertebrata > Pterobranchia
(c) Chordata > Hemichordata > Pterobranchia
(d) Chordata > Hemichordata > Enteropneusta
Answer: D
8. In which of the following the notochord is present in the embryonic stage?
(a) Vertebrates
(b) Some chordates
(c) All chordates
(d) Non-chordates
Answer: C
9. Which of the following is not a character of Chordata?
(a) Dorsal tubular nerve cord
(b) Pharyngeal gill slits
(c) Presence of notochord
(d) Presence of spinal cord
Answer: D
10. Which animal is “Non-chordate-protochordate”?
(a) Herdmania A
(b) Balanoglossus
(c) Branchiostoma
(d) Botryllus
Answer: B
Read: MCQ on Phylum Porifera
11. Mode of feeding in tunicates is_______
(a) Parasitic
(b) Macrophages
(c) Ciliary filter
(d) Myxotrophic
Answer: C
12. Which feature is common to Amphioxus, frog, sea horse and crocodile?
(a) Pharyngeal gill slits, frogs least horses,e de crocodiles stages
(b) A three-chambered heart
(c) Dorsal solid nerve chord
(d) Skeleton formed of cartilage and bones
Answer: A
13. Petromyzon belongs to_________
(a) Agnatha
(b) Gnathostomata
(c) Protochordata
(d) Euchordata.
Answer: A
14. Which one of the following features is found in Chordates but not in non-chordates?
(a) Gills
(b) Spiracles
(c) Chitinous exoskeleton
(d) Post-anal tail
Answer: B
Read: NEET Biology MCQ with Answers
15. The jawless vertebrate is_______
(a) Crocodile
(b) Loris
(c) Hyla
(d) Petromyzon
Answer : D
16. Notochord is restricted to the anterior part of the body proboscis in animals of which group______
(a) Urochordata
(b) Hemichordata
(c) Chordata
(d) Cephalochordata
Answer: B
17. Which among the following is the only vertebra. osmocon former?
(a) Hagfish
following
(c) Bird
(d) All of these
Answer: C
18. Which of the following is the smallest taxonomic of animals having a crannuni, Vertebral column, ventral heart, pulmonary respiration, and two pairs of limbs?
(a) Gnathostomata
(b) Tetrapoda
(c) Chordata
(d) Vertebrata
Answer: B
Read: NCERT class 11 Bio MCQ
19. The animal who possesses notochord throughout life is_________
(a) Fish
(b) Amphioxus
(c) Bird
(d) Snake
Answer: B
20. In which of the following jaws are found?
(a) Herdmania
(b) Fish
(c) Petromyzon
(d) Amphioxus
Answer: B
21. Temperature changes in the environment affect most of the animals which are________
(a) Aquatic
(b) Desert living
(c) Poikilothermic
(d) Homoiothermic
Answer:
22. Retrogressive metamorphosis is found in________
(a) Branchiostoma
(b) Balanoglossus
(c) Herdmania
(d) All of these
Answer: C
23. Animals having a built-in thermostat to maintain constant body temperature are known as__________
(a) Biothermic
(b) Poikilothermic
(c) Oligothermic
(d) Homoeothermic
Answer: D
24, Which of the following groups has no member having gliding or flying appendages. ?
(a) Arthropods
(b) Cyclostomata
(c) Mammals
(d) Fishes
Answer: B
25. Birds and mammals have_________
(a) Three-chambered heart
(b) Four-chambered heat
(c) None of the above
(d) Six-chambered heart
Answer: B
26. Homeothermic animals is________
(a) Toad
(b) Lizard
(c) Rabbit
(d) Frog
Answer: C
27. Which of the following are Anamniotes?
(a) Chondrichthyes, Osteichthyes, Amphibia
(b) Reptilia, Aves, Amphibia
(c) Amphibia, Aves, Mammals
(d) Reptilia, Mammals, Aves
Answer: A
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