Tag: classifications of chordata

Questions Related to classifications of chordata

A metatherian without a marsupium is?

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

  1. Didelphis

  2. Myrmecobius

  3. Bandicoot

  4. Koala

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Correct Option: B

Hedge Hog belong to order

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

  1. Rodentia

  2. Dermoptera

  3. Insectivora

  4. Pholidota

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Correct Option: C
Explanation:

(A) Rodents are those animals whose incisors are continuously growing.

(B) Dermopterons are gliding animals.
(C) Insectivores are those plants or animals that feed on insects.
Hedge hod feeds on insects.
(D) Pholidots are scaly animals.
So, the answer is 'Insectivore'

Ancestors of mammals belongs to

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

  1. Therapsida

  2. Ornithischia

  3. Silusoidea

  4. Chelonia

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Correct Option: A
Explanation:

The ancestors of Mammals belong to Therapsida as there are various similarities seen in both of them which are mostly only seen in mammals.

Ornithischia is ancestors of birds.
Chelonia is the order to which turtles belong.
Some characteristics of Therapsida are:

1. Vertical limbs extending from the body.
2. Large Jaw and Heterodont teeth.
3. Presence of hair and fur in the body.
4. Body showing ability to regulate temperature.
So the correct answer is 'Therapsida'.

An example of marsupialia is

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

  1. Elephant

  2. Horse

  3. Macropus

  4. Rabbit

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Correct Option: C
Explanation:

Marsupial mammals are also known as pouch mammals. Due to very short gestation periods, the offsprings are poorly developed and are carried in the pouches till they develop. Macropus classifies as a Marsupialia due to these reasons.

Rabbits, Horses and Elephants produce well-developed offsprings and have long gestation periods. Hence they aren't considered as marsupials.
So the correct answer is 'Macropus'.

Closest primate relative of human being is

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

  1. Rhesus Monkey

  2. Gorilla

  3. Gibbon

  4. Orang Utan

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Correct Option: B
Explanation:

Rhesus monkey, Gibbon, Gorilla, and Orangutan all have common ancestors with human beings. 

Gibbon separated from the main ancestral line around 28 million years ago.
Rhesus monkey separated around 25 million years ago.
Orangutan separated from the main line about 18 million years ago.
Whereas Gorillas separated only some 10 million years ago.
So the correct answer is 'Gorilla'.

Most animals domesticated by humans belong to

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

  1. Carnivora

  2. Rodentia

  3. Logomorpha

  4. Ungulata

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Correct Option: D
Explanation:

Ungulata contains Cattle, pigs, camels, deer, etc. All these animals are domesticated throughout the world.

Carnivora contains carnivores like cats, wolves, lion, tiger, leopard, etc.
Rodentia include rat, mus, hamster, squirrel, etc.
Lagomorpha includes Hare, Leporids, Pika, etc. 
So the correct answer is 'Ungulata'.

Sea Cows belong to

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

  1. Sirenia

  2. Cetacea

  3. Lagomorpha

  4. Proboscidia

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Correct Option: A
Explanation:

Sea cows belong to the order Sirenia which is included in Mammals.

Some common characteristics of Sirenia are:
1. They are predominantly aquatic.
2. They are herbivores.
3. They have large fusiform bodies.

Prototheria or subclass of egg laying mammals is connected with

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

  1. Kangaroo

  2. Echidna

  3. Ornithorhyncus

  4. Both B and C

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Correct Option: D
Explanation:

Prototheria includes Ornithorhynchus (Platypus) and all species of Echidna. This subclass once dominated the Australian continent.

Kangaroo belongs to the subclass Metatheria.
So the correct option is 'Both B and C'.

Orangutan belongs to family

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

  1. Hominidae

  2. Pongidae

  3. Hyalobatidae

  4. Bradipolidae

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Correct Option: A
Explanation:

Orangutan belongs to the family Hominidae which is the family of the great apes. General characteristics of this family are:

1. Hair instead of fur on their bodies.
2. Advanced opposable thumbs.
3. High level of intelligence or high brain to body size ratio.
4. They have binocular vision.
So the correct answer is 'Hominidae'.

Which of the following is a mammal?

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

  1. Psittacula

  2. Manis

  3. Planorbis

  4. Hydrophis

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Correct Option: B
Explanation:

Mammals are warm-blooded animals. They have mammary glands. They are viviparous. They have hair or fur on their body. For example, dog, cat, dolphin, human, whale, etc. Psittacula is a bird. Manis is a genus of Pangolins. These are mammals of the order Pholidota. Planorbis is a Mollusca. Hydrophis is a type of snake.

So, the correct option is 'Manis'.