Tag: classifications of chordata

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Questions Related to classifications of chordata

Multiple choice zoology animal diversity - ii (phylum: chordata) amphibia and reptilia amphibia classifications of chordata

Which of the following is not a true amphibian?

  1. Tortoise

  2. Frog

  3. Salamander

  4. Bufo
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Tortoises are considered as reptiles and not amphibians because of the following characteristics:

  • They are vertebrates that is they have a backbone.
  • They are covered in scales.
  • They breathe through lungs.
  • They lay eggs.
  • And they are cold blooded which means they cannot regulate their body temperature.
And all these characteristics are shown by the organisms which fall under the category of reptiles and not amphibians. 

Multiple choice zoology animal diversity - ii (phylum: chordata) amphibia and reptilia amphibia classifications of chordata

Which of the following statement is true for Ichthyophis?

  1. It is limbless reptile, who lives in water

  2. It is limbless amphibian, who lives in water

  3. It is limbed, lives on land

  4. It is limbless animal and amphibious in nature
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Ichthyophis is a genus of caecilians (a group of limbless, serpentine amphibians).
  • They are found in moisturized or wet tropical habitats.
  • So, the correct answer is 'It is a limbless amphibian, who lives in water'.
Multiple choice zoology animal diversity - ii (phylum: chordata) amphibia and reptilia amphibia classifications of chordata

In which of the following subclasses of reptiles the skull has a solid roof?

  1. Anapsida

  2. Diapsida

  3. Synapsida

  4. Parapsida
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Anapsid is a subclass of reptiles. An anapsid is an amniote whose skull does not have openings near the temples. The skull of anapsid are made by solid roof. It includes turtles and extinct Permian forms. 

Therefore, the correct answer is option A.

Multiple choice zoology animal diversity - ii (phylum: chordata) amphibia and reptilia amphibia classifications of chordata

An aquatic animal that lays eggs only on land is

  1. Fish

  2. Frog

  3. Sharks

  4. Turtles
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Turtles are characterized by a special bony or cartilaginous shell developed from their ribs and acting as a shield. Before the turtle lay their eggs, nearly all turtles prepare a nest on land. During the last weeks of gestation, the pregnant female spends less time in the water and more time on land, smelling and scratching at the ground in search of the perfect place to lay her eggs.

So, the correct answer is 'Turtles'.