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Diversity in Living Organisms

Description: Diversity in living organisms
Number of Questions: 15
Created by:
Tags: Animalia Classes of Animals - Invertebrates Science
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Which of the following has two germ layers?

  1. Platyhelminthes

  2. Coelenterata

  3. Nematoda

  4. Annelida

  5. Arthropoda

Show answer
Correct Option: B
Explanation:

Yes, it is the correct answer. They have two layers, the outer layer is the epidermis and inner is gastrodermis.

Depending upon the coelom, the animals are divided into

  1. acoelomate and pseudocoelomate

  2. pseudocoelomate and eucoelomate

  3. acoelomate, pseudocoelomate and eucoelomate

  4. eucoelomate and acoelomate

  5. none of these

Show answer
Correct Option: C
Explanation:

Yes, it is correct. On the basis of this, animals are divided into 3 categories. Coelom is the body cavity.

Parasites, which complete their life cycle in one host are

  1. digenetic

  2. diploblastic

  3. triploblastic

  4. monogenetic

  5. mesoderm

Show answer
Correct Option: D
Explanation:

Yes, it is correct. Parasites which complete their life cycle on one host are known as monogenetic.

Which of the following sponges is a prized gift in Japan that is considered as a symbol of everlasting love?

  1. Leucosolenia

  2. Euspongia

  3. Euplectella

  4. Spongilla

  5. Sycon

Show answer
Correct Option: C
Explanation:

Yes, it is correct. It is the sponge known as a venus flower basket of phylum porifera.

Where are the nematoblasts cells found in the coelentrates?

  1. On the gastrodermis

  2. On the tentacles

  3. On the outer layer, epidermis

  4. On the mouth

  5. These cells are not found in the coelentrates

Show answer
Correct Option: B
Explanation:

Yes, the tentacles are beset with stinging cells called cnidoblasts or nematoblasts.

In which of the following animals, notochords are not replaced by vertebral column in adults?

  1. Pisces

  2. Amphibians

  3. Arthropoda

  4. Reptilia

  5. Aves

Show answer
Correct Option: C
Explanation:

This is correct answer as arthropods do not have a vertebral coloumn.

Blood of annelids is red due to haemoglobin. Where is haemoglobin present?

  1. In the RBC

  2. In the plasma

  3. In the skin

  4. In the blood vessel

  5. In the nucleus of each cell

Show answer
Correct Option: B
Explanation:

Yes, it is the correct answer. Haemoglobin is present in plasma as RBCs are absent.

Which of the following statements is not true about Platyhelminthes? 1) They are flatworms. 2) They have complete digestive tract. 3) They are hermaphrodite. 4) They are pseudocoelomate.

  1. 1) and 3)

  2. 2) and 3)

  3. 2) and 4)

  4. 1) and 4)

  5. 1) and 2)

Show answer
Correct Option: C
Explanation:

Yes, it is correct. Statement 2) and 4) are wrong. They have incomplete digestive tract and are acoelomate.

Pick the odd one.

  1. Chiton

  2. Asterias

  3. Octopus

  4. Pila

  5. Unio

Show answer
Correct Option: B
Explanation:

All are molluscs except Asterias. Asterias is the odd one out. It is an Echinoderm.

What is the meaning of term 'poikilothermal'?

  1. High temperature

  2. Cold blooded

  3. Warm blooded

  4. Low temperature

  5. A unit of temperature

Show answer
Correct Option: B
Explanation:

It is correct. Animals in which the body temperature varies according to surrounding environment are called cold-blooded or poikilothermal animals.

Protochordates have

  1. brain

  2. cranium

  3. vertebral column

  4. jaws

  5. notochord

Show answer
Correct Option: E
Explanation:

Yes, protochordates which are non-vertebrates possess notochord at some early stages.

Arthropods are divided into four classes. Which of these is further divided into millepede and centipede?

  1. Crustacea

  2. Insecta

  3. Arachnida

  4. Myriapoda

  5. Annelida

Show answer
Correct Option: D
Explanation:

Yes, the class Myriapoda is further divided into millepede(thousand leggers) and centipede(hundred legs).

Which of the following classes is/are not from superclass Pisces? 1) Chondrichthyes 2) Ichthyophis 3) Osteichthyes

  1. 1) and 2)

  2. 2) and 3)

  3. 1) , 2) and 3)

  4. Only 2)

  5. 1) and 3)

Show answer
Correct Option: E
Explanation:

Yes, it is correct. Pisces are divided into two classes, chondrichthyes (cartilaginous) and Osteichthyes(bony).

Which of the following is/are the ferocious fish(es)? 1) Synchiropus Splendidus

2) Exocoetus 3) Caulophyryne jordani 4) Pterois volitans

  1. Only 2)

  2. 1), 3) and 4)

  3. Only 4)

  4. 2) and 4)

  5. 2) and 3)

Show answer
Correct Option: B
Explanation:

Yes, it is correct. 1) is the mandarin fish, 3) is the angler fish and 4) is the lion fish.

What is the scientific name of cockroach?

  1. Palamnaeus

  2. Periplanta

  3. Musca

  4. Palaemon

  5. Apis

Show answer
Correct Option: B
Explanation:

Yes, it is correct. It is the scientific name of cockroach.

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