Class 9 - Pearson - Biology - Diversity in Living World - AnimalsContact Number: 8527521718Class 9 - Pearson - Biology - Diversity in Living World - AnimalsContact Number: 8527521718Cellular level of organization is found in _________________ phylum.
Triploblastic animals possess an extra layer called _______________.
The phylum characterized by the presence of a false coelom is ______________.
Notochord is converted to ____________ in the adult stage.
In invertebrates, the body temperature varies according to the external conditions. So they are called _____________ animals.
Bisexual animals bearing male and female sex organs are known as ______________.
The series of changes which occur during transition from egg to adult form is ______________.
The taxonomical unit exclusively used in the classification of animal kingdom is _______________.
The single large opening at the top in sponges is called _____________.
The only fresh water animal in phylum cnidaria is _____________.
In animals belonging to phylum Platyhelminthes, locomotory organelles are _______________.
The excretory organs in round worm are ______________.
The periodical shedding of exoskeleton in arthropods is called ______________.
Soft-bodied animals belong to phylum _______________.
A _______________ is present on the dorsal side of the foot in snail.
_______________ are considered as invertebrate chordates.
Food intake in starfish takes place with the help of _______________.
Amphioxus belongs to the phylum _____________.
The sponge which is generally gifted in marriages by Japanese is ______________.
The pathway of enersing and coming out of water in sponges is known as ______________.
Coral animals secrete an exoskeleton, it is composed of ____________.
Type of resipiration seen in parasitic helminthes _______________.
In tape worm body is made up of segments called ______________.
Metameric segmentation is seen in _______________.
Water vascular system is present in ____________.
Spider and scorpions belong to ____________ class under phylum Arthropoda.
The worm which is known as filarial worm is ________________.
The class of vertebrates which has exclusively aquatic habitat is _____________.
The pigment cells present on the skin of amphibians are called ______________.
In birds, the alimentary canal ends in three chambered _____________.
The development of two sets of teeth during the life time found in mammals is called _________________ dentition.
The endoskeleton in vertebrates is made up of hard, living tissues such as ___________ and ___________.
All the land vertebrates show ______________ respiration.
Swim bladder in fish is an organ for ______________.
Cartilagenous fish are grouped under _________________.
The exoskeleton of birds is made up of ______________.
When teeth are embedded in sockets, such condition is known as ___________.
The muscular layer separating thoracic and abdominal cavity in mammals is called _____________.
The pouch in which new born kangaroo is taken care is called ________________.
The respiratory pigment present in chordates is ______________.
In snakes, poison fangs are modified _______________.
Bones in birds are hollow and are said to be _____________.
In vertebrates, coelom is derived from which germ layer?
(1) Ectoderm
(2) Endoderm
(3) Mesoderm
(4) Both ectoderm and endoderm
Identify the phylum associated with the presence of false coelom.
(1) Platyhelminthes
(2) Cnidaria
(3) Annelida
(4) Nematoda
Snails belong to which phylum?
(1) Annelida
(2) Mollusca
(3) Arthropoda
(4) Echinodermata
How many phyla are there under animal kingdom?
(1) 8
(2) 9
(3) 10
(4) 11
Identify the phylum in which the notochord is retained in the adult stage.
(1) Chordata
(2) Craniata
(3) Protochordata
(4) Echinodermata
Identify the features which correspond to phylum Platyhelminthes.
(1) Diploblastic and Acoelomate
(2) Triploblastic and Coelomate
(3) Diploblastic and Pseudocoelomate
(4) Triploblastic and Acoelomate
Which of the following features are considered to be the primitive features in the evolutionary hierarchy?
(i) Iternal fertilization
(ii) Coelom developed from mesoderm
(iii) Presence of mesoderm layer
(iv) Hermaphrodite nature
(1) (i) and (iv)
(2) (ii) and (iv)
(3) (i) and (iii)
(4) (iii) and (iv)
Identify the false statements among the following.
(i) They possess water vascular system
(ii) They possess parapodia
(iii) They show bilateral symmetry only during larval stage
(iv) They possess incomplete digestive tract
(1) (i) and (iii)
(2) (ii) and (iv)
(3) (iii) and (iv)
(4) (i) and (iii)
Identify the phylum without tissue level organization.
(1) Cnidaria
(2) Nematoda
(3) Prifera
(4) None of these
Identify the stinging cells abundant in the tentacles of hydra.
(1) Ctenidia
(2) Cnidoblasts
(3) Ostia
(4) Ganglia
The larval form of coelenterates is called by which of the following names?
(1) Medusa
(2) Polyp
(3) Zooid
(4) Planula
Which of the following invertebrates shows sexual dimorphism?
(1) Ascaris
(2) Taenia
(3) Starfish
(4) All of these
Jointed legs is the characteristic feature of which phylum?
(1) Arthropoda
(2) Annelida
(3) Nematoda
(4) Echinodermata
The common bath sponge is ________________.
(1) Sycon
(2) Euplectella
(3) Spongilla
(4) Euspongia
Tentacles of hydra help in ________________
(1) locomotion
(2) food capturing
(3) locomotion and food capturing
(4) reproduction
Physalia is commonly known as:
(1) sea fan
(2) sea pen
(3) jelly fish
(4) portuguese man o' war
Round worms differ from flat worms in having _____________.
(1) flame cells
(2) pseudocoel
(3) segmented body
(4) flagella
Identify the locomotary organs in annelida.
(1) Tube feet
(2) Setae
(3) Pseudopodia
(4) Flagella
Blue-coloured pigment present in the blood of molluse is known as:
(1) hemocyanin
(2) hemerythrin
(3) hemoglobin
(4) phytochromes
The body cavity of arthropods is called:
(1) haemocoel
(2) pseudocoel
(3) coelom
(4) exterior
Identify the phylum in which symmetry is radial in adults but bilateral in larvae.
(1) Chordata
(2) Craniata
(3) Protochordata
(4) Echinodermata
Identify the phylum/phyla in which some animals show parasitism.
(1) Nematoda
(2) Platyhelminths
(3) Annelida
(4) All of these
Identify the wrongly matched pair among the following.
(1) Excretory matter ammonia released directly into water-Echinodermata.
(2) Book lungs as respiratory organs-Arthropoda
(3) Alternation of generations-Cnidaria
(4) Skeleton made up of siliceous or calcareous spicules-Mollusca
Identify the phylum in which endocrine system appeared for the first time.
(1) Arthropoda
(2) Annelida
(3) Mollusca
(4) Protochordata
Which of the following animals possesses blood with haemoglobin in plasma?
(i) Earthworm
(ii) Balanoglossom
(iii) Snail
(iv) Butterfly
(1) (i) and (iv)
(2) (ii) and (iii)
(3) (i), (ii) and (iv)
(4) (ii) and (iv)
Which class of animals possess two chambered heart?
(1) Pisces
(2) Amphibians
(3) Reptiles
(4) Both (1) and (2)
The animals belonging to which class of vertebrates generally lead an arboreal life?
(1) Aves
(2) Reptiles
(3) Mammals
(4) All of these
Name the special pouch in which a female kola bear protects its young one after birth.
(1) Womb
(2) Uterus
(3) Placenta
(4) Marsupium
Identify the glands present in birds.
(1) Preen gland
(2) Sebaceous gland
(3) Sweat gland
(4) Mammary gland
Urinary bladder is absent in which of the following animals?
(1) Duck billed platypus
(2) Snake
(3) Peacock
(4) Kangaroo
Identify an organism in which brachial respiration takes place.
(1) Chameleon
(2) Peacock
(3) Tortoise
(4) Shark
An animal which contains three-chambered heart is ______________.
1. man
2. rabbit
3. fish
4. frog
Diaphragm in mammals plays a major role in ________________.
(1) digestion
(2) excretion
(3) respiration
(4) co-ordination
Operculum is a bony plate covering gills of ________________.
(1) bony fishes
(2) cartilaginous fishes
(3) all fishes
(4) tadpole
Identify the glands present in birds.
(1) Preen gland
(2) Sebaceous gland
(3) Sweat gland
(4) Mammary gland
Which of the following is not the characteristic feature of pisces?
(1) Presence of streamlined body
(2) Presence of lateral line sense organ
(3) Presence of fins
(4) Pentadactyl
Identify the fish which is ureotelic.
(1) Shark
(2) Catfish
(3) Ray
(4) Petromyzon
Which of the following animals can survive both in land and water habitats?
(1) Salamenders
(2) Alligators
(3) Crocodiles
(4) Penguins
Which of the following mammals possess few characteristics of reptiles?
(1) Kangaroo
(2) Spiny ant eater
(3) Kola bear
(4) Whale
Identify the sound producing organ in mammals.
(1) Pharynx
(2) Syrinx
(3) Larynx
(4) Adam's apple
Presence of biconcave, circular and anucleated RBC is the characteristic feature of which animal?
(1) Ostrich
(2) Whale
(3) Crocodile
(4) All of these
Which oviparous animal feeds its young one with mother's milk after hatching?
(1) Kangaroo
(2) Bat
(3) Penguin
(4) Duck billed platypus
Mammary glands in mammals are modified into:
(1) Sweat glands
(2) Sebaceous glands
(3) Lachrymal glands
(4) Preen glands
Mammal which contains nucleated red blood cell is:
(1) man
(2) monkey
(3) camel
(4) rabbit
Ventricle of frog contains:
(1) oxygenated blood
(2) deoxygenated blood
(3) no blood
(4) mixed blood
Jaws are absent in:
(i) Balanoglossus
(ii) Myxine
(iii) vertebrates
(iv) Petromyzon
(1) (i), (iv)
(2) (ii), (iv)
(3) (i), (ii)
(4) (iii), (iv)
Identify poikilotherms
(i) Elephants (ii) Frogs
(iii) Sharks (iv) Whales
(1) (i), (i) (2) (ii), (iv)
(3) (ii), (iii) (4) (iii), (iv)
Exoskeleton is absent in:
| (i) | fishes |
| (ii) | frog |
| (iii) | rabbit |
| (iv) | toad |
| 1. | (i), (ii) |
| 2. | (ii), (iii) |
| 3. | (i), (iii) |
| 4. | (ii), (iv) |
Define the following
(a) Bilateral symmetry
(b) Germ layers
(c) Notochord
Distinguish between vertebrates and invertebrates.
How is complete digestive tract different from incomplete digestive tract?
What is meant by extracellular digestion? How is it different from intracellular digestion?
Give the taxonomic hierarchy of animals.
What is the function of notochord?
Give the difference between open and closed circulation.
Define the following terms of giving examples.
(a) Oviparous
(b) Viviparous
(c) Radial symmetry
(d) Bilateral symmetry
(e) Homeotherms
(f) Poikilatherms
(g) Diploblastic
Mention the characteristics taken as basic for the classification of animals.
Give the characteristic features of hemichordata.
Distinguish between diploblastic animals and triploblastic animals.
What is meant by a true coelom? On what basis coelomates are further categorized?
Define sexual dimorphism. Give an example of an invertebrate phylum which shows this feature.
Give the difference between
(a) Oviparous and Viviparous animals
(b) External and Internal fertilization
(c) Direct and Indirect development
How do the following terms originate?
(a) Nematoda
(b) Echinodermata
(c) Porifera
Write short notes on the following.
(a) Ecdysis
(b) Polymorphism
What is meant by osmoregulation?
List out the characteristic features of protochordates.
Distinguish between Polyp and Medusa.
Sponges are considered as pore bearers. Discuss.
Explain the following terms.
(a) Tetrapodus
(b) Pentadactyl
(c) Nocturnal
(d) Arboreal habitat
What is meant by dentition? Explain the following terms with respect to dentition.
Mention the differences between cartilaginous and bony fishes.
Give classification for the following.
(a) Parrot (b) Cockroach
What is meant by a streamlined body? Which classes of vertebrates possess such body morphology? Justify that.
Which structural features help the amphibians to get adapted to both terrestrial and aquatic habitats?
How did the following terms originate?
(1) Amphibia (2) Reptilia (3) Mammalia
How would you identify a fish as cartilaginous or bony on observing its head region?
Mention few flight adaptations in birds.
How is pectin useful in birds?
Presence of coelom has lot of significance in higher organisms. How does this feature help them?
How is ovoviviparity different form oviparity and viviparity?
Endoparasites do not possess a digestive tract.
Explain the feeding process in hydra.
The animals belonging to lower phyla of invertebrates like tapeworm, earthworm, etc., are hermaphrodite or bisexual.
Arthropods have mosaic vision. Give reason.
Locusts can survive in extreme climatic conditions. Give reason.
Blood is usually blue in colour in molluscs. Give reason.
Arthropods constitute the largest group of the animal kingdom. Give reasons.
Balanoglossus can be considered to be a link between nonchordates and chordates. Comment on this statement.
Justify the position of Echidna in mammals though it lays eggs.
Mammals show heterodont dentition. Give reason.
The viviparous animals can produce lesser number of young ones per litter when compared to the oviparous young ones. Give reason.
Amphibians are considered to show a transition from fishes to reptiles. Justify on the basis of their characteristic features.
Yolk sac in the embryo of human female is non functional. Give reason.
Cartilaginous fishes swin continuously without any interval. Give reason.
Some vertebrates show hibernation in winter. Birds and mammals do not show this feature. Give reason.
Higher animals like mammals do not have a specific mating season like birds. Give reason.
Identify the odd one and justify.
(a) Psittacula, Ostrich, Kiwi, Tinamus.
(b) Sweat gland, Subaceous gland, preen gland, Mammary gland.
(c) Glucose, Urea, Uric acid, Ammonia.
Amphibians are considered as true voice producers. Justify.
Why are whales not considered to be fishes?
Give reasons for the following.
Blood does not clot while leach is sucking blood.
Give reason why oviparous animals lay more eggs.
Whale, shark and crocodile are all aquatice organisms. But, they have wide differences in their characteristic features. Draw a comparison of some features and justify.
Which classes of phylum chordata are associated with organisms with streamlined bodies? What purpose does such body structure serve?
Why do frogs croak during rainy reason?
Assertion (A): Organisms belonging to cnidaria do not possess coelom.
Reason (R): Cnidarians are diploblastic animals.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): In vertebrates, coelom is lined by peritoneum.
Reason (R): In vertebrates, coelom originates from endoderm.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): All viviparous animals show indirect development.
Reason (R): In all oviparous animals, development involves larval stage.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): The endoskeleton of animals is totally composed of living tissues.
Reason (R): Bone and cartilage are living tissue.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): Animals belonging to phylum Porifera are often called sponges.
Reason (R): The animals have porous bodies.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): Animals belonging to phylum Porifera are often called sponges.
Reason(R): The animals have porous bodies.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): Tapeworm does not possess a digestive tract.
Reason (R): Tapeworm is an ectoparasite.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): The blood of annelids is red in colour.
Reason (R): The blood of annelids possess haemoglobin in red blood cells.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): All chordates possess open circulatory system.
Reason (R): Balanoglossus possesses open blood vascular system.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): Mixed blood circulates in the body of a fish.
Reason (R): Fishes are characterised by the presence of two chambered heart.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): The excretory product of lizards is uric acid.
Reason (R): Lizards show terrestrial habitat.
Assertion (A): Placental mammals are considered as true mammals.
Reason (R): Only placental mammals feed their young ones with mother's milk.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): In Kangaroo, the development is partially direct.
Reason (R): Kangaroo is ovoviviparous animal.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): Animals belonging to phylum Porifera are often called sponges.
Reason (R): The animals have porous bodies.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): Crocodile has a four chambered heart.
Reason (R): Crocodile is a reptile.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): Bat nourishes its young one in mother's womb by means of placenta.
Reason (R): Bat is a bird with few features of mammals.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): Shark belongs to cartilaginous fishes.
Reason (R): Gill slits are not covered by opericulum.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): Single circulation is seen in fishes.
Reason (R): Only deoxygenated blood passes through it .
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): Fish are not considered as tetrapods.
Reason (R): They have paired fins.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): Hibernation during winter and aestivation during summer is seen in frogs.
Reason (R): Frogs are poikilotherms.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): Ichthyophis lives in borrows.
Reason (R): It is known as blind snake.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): Lizards can regenerate their lost tail.
Reason (R): Lizards have limbs.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): Pectin is present in the eye of bird.
Reason (R): It maintains shape of the eye.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): Larynx of mammals helps in producing sound.
Reason (R): It contains vocal sacs.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): Prototherians are egg laying mammals.
Reason (R): They act as connecting link between reptiles and mammals.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Assertion (A): The amphibians also possess lateral line sense organ particularly in larval stage.
Reason (R): Amphibians undergo metamorphosis.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.