Tag: zoology

Questions Related to zoology

Which of the following pairs is incorrect?

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

  1. Kiwi Bird

  2. Alligator Crocodile

  3. Bat Mammal

  4. Fish Pisces

Show answer
Correct Option: B
Explanation:

Given here are the animals and the class where they belong.

Kiwi belongs to the class aves commonly known as birds.
Bat is a mammal and fishes belong to the class Pisces. 

Alligator and crocodile both are the animals that belong to the class reptile.


So, the correct option is 'Alligator Crocodile'

Which of the following is not a true amphibian?

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

  1. Tortoise

  2. Frog

  3. Salamander

  4. Bufo

Show answer
Correct Option: A
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. 

Which of the following statement is true for Ichthyophis?

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

  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

Show answer
Correct Option: B
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'.

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

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

  1. Anapsida

  2. Diapsida

  3. Synapsida

  4. Parapsida

Show answer
Correct Option: A
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.

Excretory organs of Earthworm are .....................

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

  1. Malpighian tubules

  2. Nephridia

  3. Kidneys

  4. Flame cells

Show answer
Correct Option: B

An aquatic animal that lays eggs only on land is

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

  1. Fish

  2. Frog

  3. Sharks

  4. Turtles

Show answer
Correct Option: D
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'.

Largest reptile in the world

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

  1. Dragon

  2. Anaconda

  3. Crocodile

  4. Python

Show answer
Correct Option: B

The impact of loss of biodiversity include

zoology biodiversity, classification and conservation biodiversity losses biodiversity loss and need for conservation environmental conservation and biodiversity

  1. decline in plant production

  2. lowered resistance to environmental perturbations

  3. increased variability in ecosystem processes like plant productivity, water use, pest and disease cycles

  4. all of these.

Show answer
Correct Option: D
Explanation:

Loss of biodiversity includes decline in plant production, lowered resistance to environmental perturbations and increased variability in processes of ecosystem.

So, the correct option is 'all of these.'.

Which of these actions does not cause decrease in biodiversity?

zoology biodiversity, classification and conservation biodiversity losses biodiversity loss and need for conservation environmental conservation and biodiversity

  1. Pollution

  2. Forest fire

  3. Overgrazing

  4. Afforestation

Show answer
Correct Option: D
Explanation:

Decrease or loss of biodiversity can be brought by pollution in environment and habitat, forest fires and loss of habitat and overgrazing. While afforestation or planting of forest trees cause conservation of natural habitat thus saving the biodiversity.

So, the correct answer is 'Afforestation'.

What factors lead to decline in biodiversity? 

zoology biodiversity, classification and conservation biodiversity losses biodiversity loss and need for conservation environmental conservation and biodiversity

  1. Acid rain

  2. Pollution

  3. Population

  4. All of the above

Show answer
Correct Option: D
Explanation:

The major causes of biodiversity decline are land use changes, pollution, changes in atmospheric CO$ _2$ concentrations, changes in the nitrogen cycle and acid rain, climate alterations and the introduction of exotic species, all coincident to human population growth. The geometric rise in human population levels during the twentieth century is the fundamental cause of the loss of biodiversity. It exacerbates every other factor having an impact on rainforests. It has led to an unceasing search for more arable land for food production and livestock grazing, and for wood for fuel, construction, and energy.