CBSE Class 11 Biology Animal Kingdom MCQs Set I

Solve the MCQ questions below

Question. Assertion :- All animals has multicellularity without any exception.
Reason :- Most of animals has heterotropic holozoic mode of nutrition.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- The sponges exhibit cellular level of organisation.
Reason :- In sponges cells are arranged loosely i.e. cell aggregates body plan present.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- The pseudocoelom is formed by embryonic blastocoel.
Reason :- Pseudocoelom is the space in Aschelminthes between ectoderm and endoderm.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- Most of sponges show self fertilization in sexual reproduction.
Reason :- Sponges are always unisexual.
(a) A
(b) B
(c) C
(d) D
Answer: D

Question. Assertion :- Cnidarians contains specialised stinging cells called nematocytes.
Reason :- Cnidarians has cellular level of organisation.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Corals have a skeleton which is composed of calcium carbonate.
Reason :- Corals are formed by mainly anthozoans coelenterates.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- Most of ctenophores show sexual dimorphism.
Reason :- Ctenophores reproduce only by asexualy.
(a) A
(b) B
(c) C
(d) D
Answer: D

Question. Assertion :- Ctenophore commonly known as comb jellies.
Reason :- Their body bears eight external rows of ciliated comb plates.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Taenia (Tapeworm) is bilaterally symmetrical triploblastic animals without digestive track.
Reason :- It has both hooks and suckers for attachment, they can absorb nutrients from host directly through their body surface.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- Nephridia are osmoregulatory organs present in Neries.
Reason :- Nephridia maintain body fluid concentration.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Usually internal and self fertilization observes in earthworms.
Reason :- Earthworm is diocious
(a) A
(b) B
(c) C
(d) D
Answer: D

Question. Assertion :- Arthropoda is largest and most successful phylum of animal kingdom.
Reason :- The body of arthropods is covered by chitinous exoskeleton.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- The most distinctive feature of echinodermates is the presence of water vascular system.
Reason :- It helps in locomotion, capture and transport food and respiration.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- Echinodermates are exclusively marine.
Reason :- They are radial symmetrical with organ-system level of organisation.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- Balanoglossus is classified under phylum chordata.
Reason :- It contains a solid rod like structure, dorsal to gut.
(a) A
(b) B
(c) C
(d) D
Answer: D

Question. Assertion :- Cephalochordates are included in phylum chordata.
Reason :- They have true notochord, which extends from head to tail region and is persistent throughout life.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Petromyzon migrate from marine water to fresh water for spawning.
Reason :- Their larvae, after metamorphosis, return to the ocean.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- Aves are evolved from reptiles.
Reason :- Their hind limbs generally have scales and eggs are cleidoic.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Aves are able to maintain a constant body temperature.
Reason :- Their heart is completely four chambered and body covered by feathers.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- The protozoans are belived to be primitive relatives of animals.
Reason :- Protozoans are heterotrophs and live as predators or parasites.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Coelenterates have tissue grade of organisation.
Reason :- In coelenterates the cells performing the same function are arranged into group.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- The body cavity, which is lined by mesoderm is called coelom.
Reason :- Blood circulatory system is only present in eucoelomate animals.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- Poriferans shows internal fertilization with metamorphic development.
Reason :- Larval form of sponges are similar to their adult.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Polyps produce medusae sexually and medusae form the polyps asexually.
Reason :- Polyps have gonads while medusae are without gonads.
(a) A
(b) B
(c) C
(d) D
Answer: D

Question. Assertion :- Cnidoblast cell is the most complex type of autonomous cell.
Reason :- It is present on tentacles only with hypnotoxin.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Sea walnuts are exclusively marine, radially symmetrical, diploblastic organisms with tissue level of organisation.
Reason :- It having efficient osmoregulatory flame cells which made them capable to survive in marine habitat.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Members of phylum Platyhelminthes are also called flat worms.
Reason :- It has dorso-ventrally compressed body.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Hooks and suckers are present in the parasitic form of flat worms.
Reason :- It helps in absorbing nutrients from the host body.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- The members of phylum Aschelminthes are called round worms.
Reason :- The body of the Aschelminthes is circular in cross-section.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Ascaris having complete alimentry canal with a well developed muscular pharynx.
Reason :- Food material moves in alimentry canal of Ascaris through peristalsis.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Annelids possess longitudinal and circular muscules in their body wall which help in locomotion.
Reason :- Their locomotory structures are muscular in nature.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Arthropoda is the largest phylum of kingdom Animalia.
Reason :- Over two-thirds of all named species on earth are arthorpods.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Limulus is considered as living fossil.
Reason :- It is found in rocks as hard remains of the animal.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Molluscs are shelled organisms with psuedosegmented body.
Reason :- Body divided in head and visceral hump with torsion and detorsion as a common feature.
(a) A
(b) B
(c) C
(d) D
Answer: D

Question. Assertion :- Radula is a masticatory organ in molluscs.
Reason :- It is calcareous in nature.
(a) A
(b) B
(c) C
(d) D
Answer: D

Question. Assertion :- Echinodermates placed more closure to the chordats.
Reason :- Echinodermates are enterocoelomic and deuterostomate.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Echinodermates are the example of reterogressive evolution.
Reason :- They have ambulacral system.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- Hemichordates are considered as the seperate phylum among non-chordata.
Reason :- Respiration takes place through gills.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- Animal belonging to phylum Chordata are fundamentally characterised by the presence of notochord, a dorsal hollow nerve cord and paired pharyngeal gill slits.
Reason :- These are triploblastic and Psuedocoelomate animals.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Pisces possess a post anal tail and a closed circulatory system.
Reason :- Pisces are aquatic with having no balancing organ.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Labeo having venous heart.
Reason :- It has one auricle and one ventricle in heart.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Snakes and lizards shed their scales as skin cast.
Reason :- They are highly capable to regulate their temperature.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- The body of reptiles is covered by dry and cornified skin, epidermal scales or scutes.
Reason :- Reptiles are true terestrial vertebrate.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Air sacs in Aves are connected to lungs and supplement in respiration.
Reason :- It increases the area of gaseous exchange.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Endoskeleton of sturthio is fully ossified.
Reason :- It is a flightless birds.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- Mostly mammals are viviparous.
Reason :- Mammals have milk producing glands.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- Delphinus (Dolphin) is an example of aquatic mammals.
Reason :- It also respire through gills and have mammary gland.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Air for respiration enters in the insect body through the spiracles.
Reason :- Haemolymph in insect has no role in transportation of gases.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- Crocodiles are advanced as compared to other reptiles.
Reason :- They possesses a single systemic arch and a completely 4-chambered heart.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Cephalopod are mollusc, show direct development.
Reason :- They have suckers on arms.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- Comb plates are used for locomotion in Sea walnut.
Reason :- Comb plates are wrapped over tentacles.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Medusa stage of Coelenterates, reproduces sexually.
Reason :- It is common in Coelenterates.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Metameric segmentation is not found in apple snail.
Reason :- It is an acoelomate organism.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Canal system of sponges is considered as life line of animal.
Reason :- It is involved in nutrition, respiration excretion and reproduction.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- On the basis of organisation multicellular animals are grouped into parazoa and Eumetazoa.
Reason :- Multicellularity is only reported in animals.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Spongocoel is also known as paragastric cavity.
Reason :- It is the site of extracellular digestion in sponges.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- The cerebellum of birds is well developed.
Reason :- Birds are bipedal and flying animal.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- In reptiles and birds eggs are cleidoic.
Reason :- Cleidoic eggs is an adaptation for terrestrial habitat.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- In reptiles gential aperture is not separate from anus.
Reason :- Ureters, genital ducts and alimentary canal open into single cloacal aperture.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Reptiles are first successful terrestrial animals.
Reason :- They are first amniotes having cleidoic eggs.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Amphibians are cold blooded or Poikilothermal animals.
Reason :- They undergo hibernation or aestivation to overcome unfavourable conditions.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- Amphibians undergo hibernation or aestivation.
Reason :- They are cold blooded or poikilothermic.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Urochordats show retrogeressive metamorphosis.
Reason :- In tunicates well developes, free swimming larva changed into ill developed, fixed adult.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Hemichordate is a connecting link between non chordata and chordata.
Reason :- In hemichordates pharyngeal gill slits and nerve ring present.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- All vertebrates are chordates.
Reason :- In vertebrates notochord is present in any stage of their life span.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- In cockroach respiratory pigment is absent in blood.
Reason :- Trachea carry oxygen direct to the cell.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- In platyhelminthes incomplete digestive tract present.
Reason :- There is only a single opening to the outside of body that serves as both mouth and anus.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Coelenterates are diploblastic.
Reason :- An undifferentiated layer, mesoglea is present in between ectoderm and endoderm.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- Characteristic cell of phylum coelenterate is cnidoblast.
Reason :- Cnidoblast are used for anchorage, defense and for the capture of Prey.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- Cephalochordates often referred to as protochordates.
Reason :- In cephlochordata notochord extend from head to tail region and is persistent throughout their life.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- The broad classification of kingdom animalia based on common fundamental features.
Reason :- Most advanced fundamental feature is body cavity or coelom.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- In Taenia (Tapeworms) alimentary canal is absent.
Reason :- Nutrients absorb from the host directly through their body surface.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Mollusc body is unsegmented.
Reason :- It has distinct head, muscular foot and visceral hump.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- Echinoderms are spiny bodies animals.
Reason :- Echinoderms have an endoskeleton of calcareous ossicles.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Sexual dimorphism is present in Ascaris.
Reason :- Differences are found in morphoogy in between male and female of same species.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Ctenophorans are free swimming.
Reason :- The body bears eight internal rows of ciliated comb plates.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- In sponges fertilization is internal.
Reason :- Sponges are hermaphrodite/bisexual.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- In sponges cross fertilization occurs.
Reason :- In sponges protogynous condition occurs.
(a) A
(b) B
(c) C
(d) D
Answer: A