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Test: Classification of Non-Chordates - NEET MCQ


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25 Questions MCQ Test Biology Class 11 - Test: Classification of Non-Chordates

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Test: Classification of Non-Chordates - Question 1

Which one of the following groups of three animals is- correctly matched with their one chiaracteristic morphological feature?

Detailed Solution for Test: Classification of Non-Chordates - Question 1

Scorpion, spider and cockroach are invertebrates and belong to the phylum Arthropoda, therefore they have ventral solid central nervous system. In cockroach and locust the body is segmented extemally. In Taenia, the body is without true segments. Liver fluke has bilateral symmetry sea anemone has radial symmetry and sea cucumber has bilateral symmetry in larval form and radial symmetry in adult form. Centipede and prawn have hointed appendages while sea urchin does not have jointed appendages.

Test: Classification of Non-Chordates - Question 2

Which one of the following is a matching set of a phylum and its three examples?

Detailed Solution for Test: Classification of Non-Chordates - Question 2

Phylurm Mollusca includes those animals which have a soft body, usually furnished with a shell. The body is divided into a head, muscular foot and visceral mass. Loligo (squid), Teredo (shipworm) and Octopus are some of its examples.

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Test: Classification of Non-Chordates - Question 3

 What is true about Nereis, scorpion, cockroach and sliver fish?

Detailed Solution for Test: Classification of Non-Chordates - Question 3

Nereis belongs to phylum Annelida and scorpion, cockroach and silver fish belong to phylum Arthopoda. They all possess dorsal heart.

Test: Classification of Non-Chordates - Question 4

Bilateral symmetry, metameric segmentation, coelom and open circulatory system chiaracterizes which of the following phylum?

Detailed Solution for Test: Classification of Non-Chordates - Question 4

Arthropods show various body shapes with bilateral symmetry. They show incomplete metameric segmentation. They have true coelom containing haemocoel. In arthropods, blood vascular/circulatory system is of open type where blood flows in haemocoel instead of blood vessels.

Test: Classification of Non-Chordates - Question 5

Which of the following is not a correct match of animal and its habitat?

Detailed Solution for Test: Classification of Non-Chordates - Question 5

Hydra vulgaris is a fresh water animal.

Test: Classification of Non-Chordates - Question 6

Which one of the following statements about certain given animals is correct?

Detailed Solution for Test: Classification of Non-Chordates - Question 6

A body cavity can mean any Interna space, or a series of spaces present inside body, whereas coelom or true body cavity generally refers to a large fluid-filled space (cavity) lying between the outer body wall and the inner digestive tube. In acoelomates no body cavity or coelom is present. Embryonic mesoderm remains as a solid layer, space between endoderm (gut wall) and ectoderm (body wall) is filled with mesenchyme and muscle fibres. In pseudocoelomates body space is a pseudocoelom or false coelom. In coelomates or eucoelomates body space is a true coelom enclosed by mesoderm on both sides. Aschelminthes are pseudocioelomates Molluscs and insects are coelomates while flatworms are acoelomates.

Test: Classification of Non-Chordates - Question 7

Which is not correct for sponges?

Detailed Solution for Test: Classification of Non-Chordates - Question 7

In sponges, sexes are not separate (hermaphrodite) i.e., eggs and sperms are produced by the same individuals. Sperms leave one sponge and enter another with water current to fertilize the ova (eggs) in situ. Thus, fertilization is internal.

Test: Classification of Non-Chordates - Question 8

Which of the following have porous body and are diploblastic?

Detailed Solution for Test: Classification of Non-Chordates - Question 8

Leucosolenia and Spongilla belong to the phylun Porifera and thus have porous body (body is provided with
Pores) and are diploblaStic (i.e. derived from two germ layers - ectoderm and endoderm).

Test: Classification of Non-Chordates - Question 9

Phylum Mollusca can be distinguished from other invertebrates by the presence of

Detailed Solution for Test: Classification of Non-Chordates - Question 9

Members of phylum Mollusca have non-segmented body with a distinct head, muscular foot and visceral hump. A soft and spongy layer of skin forms a mentle over the visceral hump. The other characteristics  mentioned in  other options are shared with other phyla e.g. bilateral symmetry is exhibited by phylums Platyhelminthes, Aschelminthes,
Annelida And Arthropoda.

Test: Classification of Non-Chordates - Question 10

How do you differentiate a butterfly from a moth?

Detailed Solution for Test: Classification of Non-Chordates - Question 10

Moth has short and feather like antennae while butterfly has Iong, filamentous and club-shaped antennae.

Test: Classification of Non-Chordates - Question 11

Which of the following is not a characteristic feature of sponges?

Detailed Solution for Test: Classification of Non-Chordates - Question 11

In sponges, body is not supported by chitin. Their body is supported by calcareous or siliceous spicules or protein spongin fibres.

Test: Classification of Non-Chordates - Question 12

The figures (A - D) show four animals. Select the correct option with respect to a common characteristic of two of these animals.

Detailed Solution for Test: Classification of Non-Chordates - Question 12

Figure 'C' is of Octopus (mollusc) and figure 'D' is of scorpion (arthropod). Both have true coeloms. Figure A is of tapeworm (platyhelminth) and Figure B is of Aurelia (cnidarian). Both arp acoelomates.

Test: Classification of Non-Chordates - Question 13

Which of the following statements are incorrect?
(i) Parapodia are lateral appendages in arthropods used for swimming.
(ii) Radula in molluscs are structures involved in excretion.
(iii) Aschelminthes are dioecious.
(iv) Echinoderm adults show radial symmetry.
(v) Ctenophorans are diploblastic.

Detailed Solution for Test: Classification of Non-Chordates - Question 13

Parapodia are present in some annelid worms. These are a pair of flattened flesh lobes bearing numerous bristles Radula (rasping organ) in molluscs is a structure involved in feeding.

Test: Classification of Non-Chordates - Question 14

In v/hich one of the following, the genus name, its two characters and its phylum are not correctly matched?

Detailed Solution for Test: Classification of Non-Chordates - Question 14

Pila, belonging to the phylum Mollusca, has unsegmented body and has a rasping organ, radula in the mouth meant for feeding.

Test: Classification of Non-Chordates - Question 15

Read the following statements and select the incorrect ones.
(i) Circulatory system in arthropods is of closed type.
(ii) Parapodia in annelids help in swimming.
(iii) Phylum Mollusca is the second largest animal phylum.
(iv) Aschelminthes are dioecious.

Detailed Solution for Test: Classification of Non-Chordates - Question 15

Let's reassess the statements and determine which ones are incorrect:

(i) Circulatory system in arthropods is of closed type.

  • Incorrect: Arthropods have an open circulatory system, not a closed one. Therefore, statement (i) is incorrect.

(ii) Parapodia in annelids help in swimming.

  • Correct: Parapodia are indeed structures found in annelids (especially polychaetes) that aid in locomotion, including swimming. Therefore, statement (ii) is correct.

(iii) Phylum Mollusca is the second largest animal phylum.

  • Incorrect: Phylum Mollusca is actually the second largest animal phylum in terms of species diversity, not necessarily in terms of individuals or biomass. Therefore, statement (iii) is correct.

(iv) Aschelminthes are dioecious.

  • Correct: Aschelminthes (nematodes) are dioecious, meaning they have separate male and female individuals. Therefore, statement (iv) is correct.

Based on this evaluation:

  • Statements (i) and (iii) are incorrect.
  • Statements (ii) and (iv) are correct.

Therefore, the correct answer that lists the incorrect statements is Option 1: (i) and (iii) only.

Test: Classification of Non-Chordates - Question 16

What is common between earthworm and Periplaneta?

Detailed Solution for Test: Classification of Non-Chordates - Question 16

Earthworms and Periplaneta both have segmented bodies.

Earthworms and Periplaneta are both invertebrates that have segmented bodies. This means that their bodies are divided into a series of repeating segments or rings, which are called somites. Each somite contains a pair of legs, and the number of somites in an earthworm or Periplaneta can vary depending on the species.

Both earthworms and Periplaneta also possess anal styles, which are small appendages located near the anus. These structures are thought to be involved in the excretion of waste products and may also play a role in mating.

Earthworms and Periplaneta do not have red-colored blood or Malpighian tubules. Earthworms and Periplaneta both belong to the phylum Annelida, but they belong to different classes. Earthworms belong to the class Oligochaeta, while Periplaneta belongs to the class Blattodea.

Test: Classification of Non-Chordates - Question 17

In which of the following, segmentation in the body is first observed?

Detailed Solution for Test: Classification of Non-Chordates - Question 17

Segmentation is division or differentiation of the body into distinct portions called segments. It is first observed phylum Annelida.

Test: Classification of Non-Chordates - Question 18

Which one of the following features is common in silver fish, scorpion, dragonfly and prawn?

Detailed Solution for Test: Classification of Non-Chordates - Question 18

Silver fish, scorpion, dragonfly and prawn belong to the phylum Arthropoda and thus jointed appendages and chitinous exoskeleton.

Test: Classification of Non-Chordates - Question 19

Consider the following statements (A - C) each with two blanks.
A. Animals like Hydra and Jelly fish depict (i) symmetry whereas all vertebrates show (ii) symmetry.
B. In fiii) and (iv) digestive tract has only sngle opening (mouth) and is said to be incomplete.
C. Trichinella (Trichina worm) is a cosmopolitan (v) parasite whereas Fasciola (liver fluke) lives in the ducts of the liver of (vi)
Which one of the following options, gives the correct fill ups for the respective blank numbers from (i) to (vi) in the statements?

Detailed Solution for Test: Classification of Non-Chordates - Question 19

In animals like Hydra, jelly fish, star fish, the body can be divided into equal halves by any plane passing through the centre from top to bottom, thus exhibiting radial symmetry. In many vertebrates body can be divided into two equal halves by a single plane only thus exhibiting bilateral symmetry.
In the blind sac body plan the body has a single cavity with one opening to the outside. The single opening functions as both mouth for ingestion and anus for egestion. It is found in coelenterates and flatworms (Platyhelminthes).

Test: Classification of Non-Chordates - Question 20

Read the given statements and select the correct option.
Statement 1 : Blood is colourless in the insects.
Statement 2 : Insect blood has no role in O2 transport.

Detailed Solution for Test: Classification of Non-Chordates - Question 20

Blood is colourless in insects as it has no respiratory pigment. Therefore, it has no role in O2 transport. O2 is transported through tracheae.

Test: Classification of Non-Chordates - Question 21

The type of symmetry in the given animals is

Detailed Solution for Test: Classification of Non-Chordates - Question 21

Figure 'A' is of Hydra which has radial symmetry and figure 'B' is of Cancer (crab) which has bilateral symmetry.

Test: Classification of Non-Chordates - Question 22

Stinging capsules (nematocysts) are found in

Detailed Solution for Test: Classification of Non-Chordates - Question 22

Stinging capsules (nematocysts) are the organs of offence and defence, present in the phylum Coelenterata. Sea pen and sea fan are members of this phylum.

Test: Classification of Non-Chordates - Question 23

Which of the following statements is correct for sponges without exception?

Detailed Solution for Test: Classification of Non-Chordates - Question 23

All sponges have high regenerative power. Their skeleton may consist of calcareous or siliceous spicules. Some sponges live in fresh water e.g. Spongilla. Most of the sponges are asymmetrical, some are radially symmetrical.

Test: Classification of Non-Chordates - Question 24

What is common among silver fish, scorpion, crab and honey bee?

Detailed Solution for Test: Classification of Non-Chordates - Question 24

Silver fish, scorpion, crab and honey bee, all belong to the phylum Arthropoda. The members of this phylum have characteristic feature of jointed appendages.

Test: Classification of Non-Chordates - Question 25

Among the following organisms which is a completely non-parasitic form?

Detailed Solution for Test: Classification of Non-Chordates - Question 25

Sea anemone is not parasitic. It shows mutualism with hermit crab. Tapeworm is an endoparasite while leech and mosquito are exoparasites.

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