Please refer to Animal Kingdom Class 11 Biology Important Questions with answers below. These solved questions for Chapter 4 Animal Kingdom in NCERT Book for Class 11 Biology have been prepared based on the latest syllabus and examination guidelines issued by CBSE, NCERT, and KVS. Students should learn these solved problems properly as these will help them to get better marks in your class tests and examinations. You will also be able to understand how to write answers properly. Revise these questions and answers regularly. We have provided Notes for Class 11 Biology for all chapters in your textbooks.

Important Questions Class 11 Biology Chapter 4 Animal Kingdom

Diagram Type Questions

Question. The given figures (A & B) shows the germinal layer.

The animals having structures shown in the figures are respectively called
(a) diploblastic, triploblastic
(b) triploblastic, diploblastic
(c) diploblastic, diploblastic
(d) triploblastic, triploblastic

Question. Refer the given figures A, B, C and D and identify the option which shows their correct name.

A	B	C	D
(a) Pleurobrachia	Cnidoblast	Aurelia	Adamsia
(b) Aurelia	Adamsia	Cnidoblast	Pleurobrachia
(c) Cnidoblast	Pleurobrachia	Adamsia	Aurelia
(d) Adamsia	Aurelia	Pleurobrachia	Cnidoblast

Question. Identify the figures and select the correct option.

(a) A – Pseudocoelomate; B – Coelomate, C-Acoelomate
(b) A – Coelomate, B – Pseudocoelomate, C- Acoelomate
(c) A – Coelomate; B- Acoelomate; C – Pseudocoelomate
(d) A – Coelomate; B- Acoelomate; C-Eucoelomate

Question. Identify the figures A, B and C and choose the correct option.

(a) A – Male Ascaris, B – Hirudinaria (leech), C- Nereis
(b) A – Female Ascaris, B – Nereis, C-Hirudinaria (leech)
(c) A – Female Ascaris B- Hirudinaria (leech), C – Nereis
(d) A – Male Ascaris, B – Nereis, C- Hirudinaria (leech)

Question. Identify the figure with its correct name and phylum.

(a) Cucumaria – Echinodermata
(b) Ascidia – Urochordata
(c) Balanoglossus – Hemichordata
(d) Hirudinaria – Annelida

Question. Refer the figures A, B and C and choose the correct option which shows animals that regulate buoyancy with the help of air bladder.

(a) A and B
(b) A and C
(c) B and C
(d) All of the above.

Question. The given figures of animals (A & B) are distinguished on the basis of symmetry. Select the correct option which shows the type of symmetry and its description against the animals.

(a) A : Biradial, organisms is divided into unequal halves by any plane through the central axis.
(b) B: Bilateral, body is divided into equivalent right and left halves by only one plane.
(c) A: Asymmetrical, organisms is not divided into equal halves by any plane through the central axis.
(d) B: Radial, in which any plane passing through the central axis of the body divides the organism into two identical halves.

Question. The figure given below is the characteristic structure of the phylum in which animals are aquatic, free swimming or sessile, mostly marine, radially symmetrical. Identify the phylum and correct function of the structure.

(a) Ctenophora; Emission of light.
(b) Porifera; Feeding, respiration and excretion.
(c) Cnidarian; Anchorage, Defense and food capturing
(d) Mollusca; Locomotion, transport of food and respiration.

Question. Which of the following animal’s body is covered by calcareous shell and unsegmented with a distinct head, muscular foot, and visceral hump?

Question. Identify the correct characteristic feature shown by the given figure?

(a) Diploblastic in nature.
(b) Having radial symmetrical body.
(c) Dioecious with direct development.
(d) Presence of sensory tentacles on anterior head region.

Critical Thinking Type Questions

Question. Which of the following pairs of animals are similar to each other pertaining to the feature stated against them?
(a) Pteropus and Ornithorhyncus – Viviparity
(b) Garden lizard and crocodile – Three chambered heart
(c) Ascaris and Ancylostoma – Metameric segmentation
(d) Sea horse and flying fish – Cold blooded (poikilothermal)

Question. Which of the following traits is not shared by both sea anemones and jellyfish ?
(a) A medusa as the dominant stage in the life cycle.
(b) Possession of a gastro vascular cavity.
(c) Sexual reproduction.
(d) Nematocysts present on the tentacles.

Question. The transition from aquatic to terrestrial lifestyles required many adaptations in the vertebrate lineage. Which of the following is not one of those adaptations ?
(a) Switch from gill respiration to air-breathing lungs.
(b) Improvements in water resistance of skin.
(c) Alteration in mode of locomotion.
(d) Development of feathers for insulation.

Question. Which of the following sets of animals give birth to young ones?
(a) Platypus, Penguin, Bat, Hippopotamus.
(b) Shrew, Bat, Cat, Kiwi.
(c) Kangaroo, Hedgehog, Dolphin, Loris.
(d) Lion, Bat, Whale, Ostrich.

Question. Which of the following is a correct match of a phylum with its three examples?
(a) Platyhelminthes–Planaria, Schistosoma, Enterobius
(b) Mollusca – Loligo, Sepia, Octopus
(c) Porifera – Spongilla, Euplectella, Pennatula
(d) Cnidaria – Bonellia, Physalia, Aurelia

Question. Which of the following is not a characteristic feature of kingdom animalia ?
(a) Storage of carbohydrates as starch.
(b) Multicellularity.
(c) Obtaining nutrients by ingestion.
(d) Having eukaryotic cells without walls.

Question. Tracheae of cockroach and mammal are similar in having
(a) paired nature.
(b) non-collapsible walls.
(c) ciliated inner lining.
(d) origin from head.

Question. The organisms attached to the substratum generally possess
(a) one single opening to the digestive canal.
(b) cilia on the surface to create water current.
(c) radial symmetry.
(d) asymmetrical body.

Question. Which of the following characters is absent in all chordates?
(a) Diaphragm
(b) Coelom
(c) Pharyngeal gill clefts
(d) Dorsal nerve cord

Question. Which of the following characteristic is probably most responsible for the great diversification of insects on land?
(a) Segmentation
(b) Antennae
(c) Bilateral symmetry
(d) Exoskeleton

Question. A student brought home a strange animal which he found outside under a rock. It had moist skin, a complete digestive tract, a ventral nerve cord, and had gone through torsion. Identify the phylum of the animal.
(a) Porifera
(b) Annelida
(c) Mollusca
(d) Echinodermata

Question. A student was given a specimen to identify on the basis of the characteristics given below.
(i) They are metamerically segmented.
(ii) They have closed circulatory system.
(iii) They have circular and longitudinal muscles for locomotion.
Identify the specimen.
(a) Prawn
(b) Pheretima
(c) Wuchereria
(d) Ctenoplana

Question. Refer the types of cells present in some animals. Each cell is specialized to perform a single specific function except
(a) Cnidocytes
(b) Choanocytes
(c) Interstitial cells
(d) Gastrodermal cells