Tag: zoology

Questions Related to zoology

Which one of the following is not a poisonous snake?

zoology animal diversity - ii (phylum: chordata) aves and mammalia classifications of chordata aves

  1. Cobra

  2. Viper

  3. Python

  4. Krait

Show answer
Correct Option: C
Explanation:

Python is a large and non-poisonous snake. It kills its prey by coiling around and crushing before swallowing it.

What is common between parrot, platypus and kangaroo?

zoology animal diversity - ii (phylum: chordata) aves and mammalia classifications of chordata aves

  1. Toothless jaws

  2. Functional postanal tail

  3. Oviparity

  4. Homoiothermy

Show answer
Correct Option: D
Explanation:

Parrot belongs to the Class Aves whereas platypus and kangaroo belong to the Class Mammalia. Both ayes and mammals are homoiotherms, i.e., the temperature of their body remains constant irrespective of the temperature of the environment.

So the correct option is D.

In which one of the following, the genus name, its two characters and its class/phylum are correctly matched?

Genus Name Two characters Class/Phylum
(a) Ascaris (i)(ii) Body segmentedMales and females distinct Annelida
(b) Salamandra (i)(ii) A tympanum cover middle ear,Fertilisation is internal Amphibia
(c) Pteropus (i)(ii) Skin possesses hairOviparous Mammalia
(d) Aurelia (i)(ii) CnidoblastOrgan level of organisation Coelenterata
zoology animal diversity - ii (phylum: chordata) aves and mammalia classifications of chordata aves

  1. (a)

  2. (b)

  3. (c)

  4. (d)

Show answer
Correct Option: B
Explanation:

Salamandra belonging to the Class Amphibia has a tympanum that covers middle ear and in it fertilisation is internal. Ascaris has an unsegmented body and it belongs to the Phylum Aschelminthes. Pteropus is viviparous. Aurelia has a tissue level of organisation.

So the correct option is B.

Which one of the following sets of animals share a four chambered heart?

zoology animal diversity - ii (phylum: chordata) aves and mammalia classifications of chordata aves

  1. Amphibian, Reptiles, Birds

  2. Crocodiles, Birds, Mammals

  3. Crocodiles, Lizards, Turtles

  4. Lizards, Mammals, Birds

Show answer
Correct Option: B
Explanation:

Amphibians have three-chambered heart, while reptiles have incomplete four-chambered heart (except crocodiles). Crocodiles, birds and mammals have complete, four-chambered hearts.

Guinea pigs used in medical research are

zoology animal diversity - ii (phylum: chordata) aves and mammalia classifications of chordata aves

  1. Stocky and brown in colour

  2. Black swine

  3. Rodents

  4. Found In Asia only

Show answer
Correct Option: C
Explanation:

Rodents are gnawing mammal of an order that includes rats, mice, squirrels, hamsters, porcupines, and their relatives, distinguished by strong constantly growing incisors and no canine teeth. They constitute the largest order of mammals.

They have many biological similarities to humans, beyond the simple fact that they are mammals, which make them useful in many fields of research.
So the correct option is 'Rodents'

Animal development is limited to the period prior to birth hatching.

zoology animal diversity - ii (phylum: chordata) aves and mammalia classifications of chordata aves

  1. True

  2. False

Show answer
Correct Option: B
Explanation:

Animal development are the processes that lead eventually to the formation of new animal from cells derived from one or more parent individuals. There are various post-embryonic development that takes place outside the body and are considered as animal development.

For frugivorous birds and mammals in the tropical forests of different continents, the slope is found to be  

zoology animal diversity - ii (phylum: chordata) aves and mammalia classifications of chordata aves

  1. 0.6

  2. 1.3

  3. 1.15

  4. 1.7

Show answer
Correct Option: C
Explanation:

The slope of the line is much steeper if we analyse the species-area relationships among very large areas like the entire continents. 

What do porcupine quills, pangolin scales, lion's claws, goose feathers and yak hooves have in common?

zoology animal diversity - ii (phylum: chordata) aves and mammalia classifications of chordata aves

  1. They are made of cellulose

  2. They are made of keratin

  3. They secrete a substance called ambergris

  4. None of this

Show answer
Correct Option: B
Explanation:
  • Keratin is a protein deposited in the epidermal cells which protect the epithelial cells from damage or stress.
  • It is an important structural material that makes up the hair, horns, claws, hooves, and nails etc.
  • So, the correct answer is 'They are made of keratin'.

Which one of the following is not a member of Eutheria?

zoology animal diversity - ii (phylum: chordata) aves and mammalia classifications of chordata aves

  1. Gorilla

  2. Pangolin

  3. Mole

  4. Platypus

Show answer
Correct Option: D
Explanation:

The Eutheria clad consists of the Placental Mammals.

Gorilla, Pangolin, and Moles are all placental mammals and hence belong to Eutheria.
Platypus is a monotreme and belongs to Prototheria.
So the correct answer is 'Platypus'.

Choose the correct answers from the alternatives given.
Generally the breathing system in birds:

zoology animal diversity - ii (phylum: chordata) aves and mammalia classifications of chordata aves

  1. is identical to the human breathing system

  2. is merely accelerated by the flight muscles

  3. resembles the positive pressure system of a frog

  4. requires a flow-through bronchi-lung so constant oxygen absorption can meet the high oxygen demand

Show answer
Correct Option: D
Explanation:

Unidirectional flow means that air moving through bird lungs is largely 'fresh' air & has a higher oxygen content.  So, in bird lungs, more oxygen is available to diffuse into the blood. 

So the correct answer is "requires a flow-through bronchi-lung so constant oxygen absorption can meet the high oxygen demand".