NCERT CLASS 11 | TOPIC : ANIMAL CLASSIFICATION | ARQB | NEET BIOLOGY ONLINE TEST

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NCERT CLASS 11 | TOPIC : ANIMAL CLASSIFICATION | ARQB | NEET BIOLOGY ONLINE TEST

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It contains 35 important questions. Choose the most correct answer. Then check your answer. Try again if there are errors. Regards : www.onlinetest.kalvisolai.com

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1 ➤ 239.

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Assertion: A closed circulatory system is found in annelids.

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Reason: Annelids posses true coelom.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

2 ➤ 240.

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Assertion: Fertilization in sponge is internal.

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Reason: Sponges are aquatic organisms.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

3 ➤ 241.

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Assertion: The skeleton of sponges is made up of spicules.

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Reason: Composition of spicules help in classification of sponges.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

4 ➤ 242.

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Assertion: Acraniata is a group of organisms which do not have distinct cranium.

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Reason: It includes small marine forms without head.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

5 ➤ 243.

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Assertion: Cold blooded animals do not have fat layer.

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Reason: Cold blooded animals use their fat for metabolic process during hibernation.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

6 ➤ 244.

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Assertion: Cyclostomes are marine but migrate for spawning to fresh water.

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Reason: Larvae of cyclostome is metamorphosed in marine water.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

7 ➤ 245.

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Assertion: Sponges belong to Porifera.

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Reason: Sponges have canal system.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

8 ➤ 246.

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Assertion: A shark can stay at a desired level in water without swimming.

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Reason: It has a buoyancy-regulating organ called as the swim bladder.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

9 ➤ 247.

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Assertion: Birds have one ovary.

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Reason: This reduces the body weight for flight.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

10 ➤ 248.

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Assertion: Plasmodium vivax is responsible for malaria.

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Reason: Malaria is caused by polluted water.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

11 ➤ 249.

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Assertion: Birds are warm blooded.

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Reason: Birds are able to maintain a constant body temperature.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

12 ➤ 250.

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Assertion: Systematics is the branch of biology that deals with classification of living organisms.

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Reason: The aim of classification is to group the organisms.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

13 ➤ 251.

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Assertion: All birds, except the ones like koel (cuckoo) build nests for retiring and taking rest during night time (day time for nocturnal).

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Reason: Koel lays its eggs in the nests of tailor bird.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

14 ➤ 252.

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Assertion: Bats and whales are classified as mammals.

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Reason: Bats and whales have four-chambered heart.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

15 ➤ 253.

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Assertion: Tapeworm, roundworm and pinworm are endoparasites of human intestine.

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Reason: Improperly cooked food is the source of all intestinal infections.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

16 ➤ 254.

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Assertion: The duck-billed Platypus and the spiny ant-eater, both are egg-laying animals yet they are grouped under mammals.

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Reason: Both of them have seven cervical vertebrae and 12 pairs of cranial nerves.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

17 ➤ 255.

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Assertion: Coelenterates are triploblastic.

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Reason: Coelenterates contain mesoderm in between ectoderm and endoderm.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

18 ➤ 256.

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Assertion: Digestive system of platyhelminthes is incomplete.

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Reason: They have single opening to outside of the body, serve as both mouth as well as anus.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

19 ➤ 257.

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Assertion: Coelenterates, Ctenophores and adult Echinoderms are said to be radial symmetrical.

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Reason: Their body can be dived into two equal halves in any plane passing through central axis of the body.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

20 ➤ 258.

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Assertion: Obelia shows metagenesis.

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Reason: Obelia is polymorphic organism.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

21 ➤ 259.

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Assertion: Metagenesis in Obelia is equivalent to alternation of generation in plant

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Reason: Polyp is haploid and medusa phase is diploid in Obelia

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

22 ➤ 260.

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Assertion: Ascidia belong to sub - phylum urochordata.

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Reason: Notochord is present in tail of larva stage.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

23 ➤ 261.

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Assertion: Fertilisation in bony fishes is usually external.

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Reason: In males in bony fishes pelvic fins bear claspers.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

24 ➤ 262.

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Assertion: Birds have pneumatic bones.

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Reason: This reduce weight for flight

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

25 ➤ 263.

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Assertion: Snake shed their scale as skin cast.

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Reason: It allow continue growth of snake.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

26 ➤ 264.

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Assertion: All vertebrates are chordates.

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Reason: Vertebrates posses notochord during the embryonic period.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

27 ➤ 265.

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Assertion: Most sponge’s body are said to be asymmetrical.

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Reason: Body of most sponge can’t be divided into two equal half by any plane pass through the centre of body.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

28 ➤ 266.

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Assertion: Aschelminthes are pseudocoelomate.

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Reason: Body cavity in these organisms is not lined with mesoderm.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

29 ➤ 267.

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Assertion: Porifera to Echinoderms are non-chordates.

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Reason: Notochord is not formed during embryonic development in these animals.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

30 ➤ 268.

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Assertion: Coelenterates are called cnidarians.

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Reason: They possess cnidoblasts on tentacles and the body.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

31 ➤ 269.

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Assertion: Bioluminescence is well marked in ctenophores.

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Reason: All ctenophores are exclusively marine.

(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

32 ➤ 270.

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Assertion: Annelids shows metameric segmentation.

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Reason: Body of annelids divided externally as well as internally.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

33 ➤ 271.

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Assertion: Platyhelminthes are known as flat worms.

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Reason: Platyhelminthes have laterally compressed body.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

34 ➤ 272.

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Assertion: In amphibian skin is generally moist.

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Reason: They shows cutaneous respiration.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

35 ➤ 273.

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Assertion: All mammals are viviparous.

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Reason: All mammals show external fertilisation.

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(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false.

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