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Choose the incorrect statement:

Body cavity is the cavity present between body wall and gut wall. In some animals the body cavity is not lined by mesoderm. Such animals are called:
1.  Acoelomate
2.  Pseudocoelomate
3.  Coelomate
4.  Haemocoelomate

In which of the following pairs of animals, digestion is intracellular and water is taken through pores in the body?
1.  Euspongia and Spongilla
2.  Hydra and Physalia
3. Herdmania and Balanoglossus
4.  Pleurobrachia and Scypha

Which of the following pairs of organisms, possess stinging cells(nematocytes)?
1.  Sea fan and Sea pen
2.  Cobra and Scorpion
3.  Cockroach and Mosquito
4.  Wasp and Honey bee

Find the incorrect match with respect to sponges:
1.  Ostia$—$Water enters through it
2.  Osculum$—$Water goes out through it
3.  Choanocytes$—$The collar cells are absent
4.  Spongocoel$—$Central cavity

Choose the correct pathway of water flow in the canal system of Porifera:
1.  Osculum$\to$Spongocoel$\to$Ostia$\to$Exterior
2.  Ostia$\to$Osculum$\to$Spongocoel$\to$Exterior
3.  Spongocoel$\to$Ostia$\to$Osculum$\to$Exterior
4.  Ostia$\to$Spongocoel$\to$Osculum$\to$Exterior

Read the following statements:
(i) Excretory organs of arthropods are malpighian tubules and green glands
(ii) Blood of arthropods is yellow
(iii) In insects, respiratory gaseous exchange occurs through tracheae
(iv) Bombax is commonly called silkworm
(v) King crab or horseshoe crab is Limulus
Which of the above statements are correct?
1.  (i), (iii), (v)
2.  (i), (ii), (iii)
3.  (iii), (iv), (v)
4.  (ii), (iv), (v)

The body of molluscs:
1.  Usually remains covered by a calcareous shell
2.  Possess segmentation
3.  Possess distinct head, visceral hump but lack muscular foot
4.  Lack bilateral symmetry

Which of the following features is not present in the Phylum-Arthropoda?
1. Chitinous exoskeleton
2.  Metameric segmentation
3. Parapodia
4. Jointed appendages

Which of the following is the correct match?
1.  Human and frog - Nucleated RBC
2.  Ascaris and Liver fluke - Internal Fertilisation
3.  Earthworm and cockroach - Sexual dimorphism
4.  Nereis and Hydra - Segmented body

Find out the correct option regarding following organisms; Fasciola; Ascaris; Periplaneta:
1.  Expect Fasciola, rest all have a complete digestive system
2.  Ascaris and Nereis have internal fertilisation
3.  Except Ascaris all others show metamerism
4.  Periplaneta has compound eyes rest others have simple eyes

All vertebrates:
1.  Are chordates but all chordates are not vertebrates
2.  Lack notochord in embryonic stage but possess it in adult stage
3.  Have heart with two, three or four chambers
4.  More than one option is correct

Choose the odd one out with respect to reptiles:
1.  Mostly terrestrial
2.  Body covered by scutes
3.  Homeotherms
4.  Internal fertilization

Read the following with respect to hemichordates:
(i) Are exclusively fresh water organisms
(ii) Possess metameric segmentation
(iii) Body is cylindrical
(iv) Respiration occur through gills
(v) Excretion of nitrogenous waste occurs through proboscis gland
Which of the above statements are correct?
1.  (iii), (iv), (v)
2.  (i), (ii)
3.  (i), (iii)
4.  (ii), (iv), (v)

Which of the following statement is totally wrong about the occurrence of notochord while the other three are correct?
1.  It is present through life in Amphioxus
2.  It is present only in larval tail in Ascidians
3.  It is replaced by a vertebral column in adult frog
4.  It is absent throughout life in humans from the very beginning

Which one of the following pairs of animals are similar to each other pertaining to the feature stated against them?
1.  Ascaris and Ancylostoma - Metameric segmentation
2.  Sea horse and Flying fish - Cold blooded (poikilothermal)
3.  Pteropus and Ornithorhynchus - Viviparity
4.  Garden lizard and Crocodile - Three chambered heart

Which one of the following animals is correctly matched with its one characteristic and the taxon?

Which one of the following groups of animals reproduces only by sexual means?
1.  Cnidaria
2.  Porifera
3.  Protozoa
4.  Ctenophora

Which of the following represents the correct combination without any exception?

Identify the correct statement with respect to structures marked X and Y in the diagram given below:
                           
1.  Both X and Y are present throughout the life in Urochordates
2.  Both X and Y takes part in circulation of water for respiration
3.  In vertebrates X is replaced by a cartilaginous or bony vertebral column in adults and Y occur only
     in embryonic stags in higher chordates
4.  X may be present in few non-chordates but Y is completely absent in them

Which of the following is incorrect?

Match the column:

1.  A=(iv),  B=(iii),  C=(i),   D=(ii)
2.  A=(iv),  B=(i),    C=(iii), D=(ii)
3.  A=(ii),   B=(iv),  C=(i),   D=(iii)
4.  A=(i),    B=(ii),   C=(iv), D=(iii)