Biology

Animal Kingdom: Model Questions

1. An animal shows the following characters:

· Body is dorso-ventrally flattened

· Parenchyma cells are found between the body wall and alimentary canal

· Flame cells are present

· Body is unsegmented and bilaterally symmetrical.

a. Name the phylum of this animal.

b. Give an example.

2. Give reasons for the following statements

a. Saliva of Leech contains an enzyme hirudin.

b. Sponges were earlier considered as lifeless organisms

c. All vertebrates are chordates but all chordates are not vertebrates

d. Shark has to swim continuously, otherwise it will sink down.

e. Annelids show metamerism.

f. Tapeworm has numerous segments, but it is not included under annelid.

g. Arthropods are the most successful invertebrates.

h. Birds have pneumatic bone

i. Birds have single ovary and a single oviduct unlike other vertebrates.

j. Body of Endoparasites is covered with cuticle.

3. Find out the corresponding phylum with an example from the following general characters

a. They are multicellular with a tissue grade of organisation, all are aquatic, radially symmetrical, diploblastic and mouth is encircled by finger like tentacles.

b. They are bilaterally symmetrical, vermiform animals, triploblastic, exhibit metamerism

c. They are exclusively marine, triploblastic, spines on the skin and radially symmetrical in the adult and bilaterally symmetrical in the larval stage.

4. Match the following related things from B and C with column A

A	B	C
Common name	Scientific name	Phylum
Jelly fish	Sepia	Annelida
Cuttlefish	Hirudinaria	Echinodermata
Sea urchin	Aurelia	Mollusca
Leech	Echinus	Cnidaria

5. Phylum Arthropoda is the largest phylum in animal kingdom. It includes more than ¾ of the total species in the biosphere. They are the most successful animals in the world.

a. Mention any 2 reasons that make the arthropods more successful group of animals.

b. Name two economically important arthropods.

c. List the various types of respiratory structures present in arthropods.

d. Name a pest in arthropoda.

6. Apply the scientific terms for the following statements.

a. Egg lying animals

b. Cold blooded animals

c. Blood filled cavity in arthropods

d. Winter sleep of an animal

7. Characteristics of three animals are given

	I	II	III
Habitat	Terrestrial/aquatic	Marine	Terrestrial
Epidermis covered with	Slime/mucous	Hair	Scales
Skeleton	Internal	Internal	Internal
Fertilization	External (In water)	Internal	Internal
Embryo develops in	Egg	Mother	Egg

a. To which group of animals does each of these belong?

b. Which of these animals is most likely to have gills at certain stage of its life cycle?

c. Name one animal for each group that may fulfill these characteristics.

8. Note the relation between first two words and suggest a suitable word for the fourth place

a. Annelida : Nephridia Planaria : ????????.

b. Platyhelminthes : Acoelomates Pseudocoelomate : ????????.

c. Fish : Gills Insects : ????????.

d. Porifera : Spongocoel Cnidaria : ????????.

e. Jaw present : Gnathostomata Jaw absent : ????????.

f. Man : Bilaterally symmetrical Starfish :????????..

g. Osteichthyes: Homocercal Chondrichthyes :????????..

9. Odd man out and give reason

a. Flying fish, Sea horse, Hag fish, Angel fish

b. Ascaris, Wuchereria, Ancylostoma, Limulus

c. Earthworm, hookworm, roundworm, filarial worm

d. Porifera, Coelenterata, chordata, annelida

e. Jellyfish, silverfish, starfish, cuttlefish

f. Wings, air bladder, oviparous, absence of urinary bladder

10. Read the following general characters of living organisms and find out the corresponding phylum and give one example for each group.

a. Bilaterally symmetrical, triploblastic organisms with jointed appendages and the body is covered by Chitinous cuticle

b. All are marine with organ system level of organization. Adults are radially symmetrical, but larvae are bilaterally symmetrical, shows water vascular system

c. Triploblastic, bilaterally symmetrical, Coelomate. Body is cylindrical with proboscis, collar and trunk.

11. Birds are adapted for aerial life

a. Write four adaptations found in birds

b. Name two flightless birds

12. Which is not correct feature about Phylum chordata?

Presence of notochord

Presence of dorsal heart

Absence of double ventral nerve cord,

Presence of endoskeleton and exoskeleton.

13. Observe the diagram and answer the following

a. Name the phylum in which the above phenomenon is seen

b. Identify the two forms

c. Mention any two differences between them

d. Of these, which is more advanced? Give reason.

More possible pictures to identify for examination: Cnidoblasts, polyp, medusa, Coelom, tails of bony and cartilaginous fishes, basic plan of chordate, Lower animals

14. Complete the given flow chart showing the flow of water through canal system in sponges

15. Match the following

A	B	C
Mollusca	Honeybee	Spiny skinned animals
Arthropoda	Pila	Annulus or little rings
Annelida	Asterias	Joint footed animals
Echinodermata	Leech	Soft bodied animals

16. Pick out the appropriate one from the terms given within bracket and put them against the corresponding phyla.

a. Porifera	b. Coelenterata	c. Mollusca
d. Platyhelminthes	e. Annelida	f. Echinodermata

(Flame cells, hirudin, Choanocytes, Diploblastic, ossicles, radula)

17. During class room discussion a student said that sponges are more complex than cnidarians. Do you agree with him? Justify.

18. What are the difficulties that you would face in classification of animals, if common fundamental features are not taken into account? (NCERT)

19. If you are given a specimen, what are the steps that you would follow to classify it? (NCERT)

20. The following animals have different habit and habitat. But they have some common characters.

Locust, Prawn, Butterfly, Spider.

a. Mention the common characters

b. Identify their phylum.

21. Which is true about arthropods?

a. Haemocoel absent

b. Segmented body

c. Radially symmetrical

d. Closed circulation

22. Copy and complete the table

Phyla	Grade of organisation	Symmetry	Germ layers	Coelom
Porifera	Cellular	??????..	??????..	??????..
Ctenophora	??????..	Radial	??????..	??????..
Mollusca	??????..	??????..	??????..	Coelomate
Echinodermata	??????..	??????..	Triploblastic	??????..

23. Mention the single word

a. Blood filled Coelom

b. Body wall with 2 layers

c. Series of changes by which a larva becomes an adult.

d. Occurrence of 2 or more forms

e. Periodical removal of exoskeleton.

24. Study the following facts by connecting with the features of tetrapoda and answer the following

· Aq. larval life & terr. adult life	· Mammary glands	· Poikilotherms
· Bear limbs	· Presence of feathers	· Oviparous
· Heterodont dentition	· Caudal fin	· Skin with hair
· Heart is 4-chambered	· Bony endoskeleton	· Heterocercal caudal fin
· Pneumatic bone	· Operculum	· Notochord present

a. Select the common features of all tetrapods

b. Select the unique features of different tetrapods

c. Mention the features which are not suitable for tetrapods

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- Animal Kingdom- Notes
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Phylum Organism Larva Porifera Sycon Amphiblastula Leucosolenia Parenchymula (Stereogastrula)   Higher sponges Rhagon Cnidaria Aurelia (Jelly fish) Ephyra (Ephyrula), Planula, Hydratuba Obelia, Sea anemone ...

Biology