Class 9 Science · 57 questions · 57 with answers
Find out incorrect sentence
(d) Monerans have well defined nucleus
Which among the following has specialised tissue for conduction of water? (i) Thallophyta (ii) Bryophyta (iii) Pteridophyta (iv) Gymnosperms
(c) (iii) and (iv)
Which among the following produce seeds?
(d) Gymnosperms
Which one is a true fish?
(c) Dogfish
Which among the following is exclusively marine?
(b) Echinodermata
Which among the following have open circulatory system? (i) Arthropoda (ii) Mollusca (iii) Annelida (iv) Coelenterata
(a) (i) and (ii)
In which group of animals, coelom is filled with blood?
(a) Arthropoda
Elephantiasis is caused by
(a) Wuchereria
Which one is the most striking or (common) character of the vertebrates?
(a) Presence of notochord
Which among the following have scales? (i) Amphibians (ii) Pisces (iii) Reptiles (iv) Mammals
(c) (ii) and (iii)
Find out the false statement
(d) Fishes, amphibians and reptiles are oviparous DIVERSITY IN LIVING ORGANISMS 49 16-04-2018
Pteridophyta do not have
(c) flowers
Identify a member of porifera
(a) Spongilla
Which is not an aquatic animal?
(d) Filaria
Amphibians do not have the following
(c) Scales
Organisms without nucleus and cell organelles belong to (i) fungi (ii) protista (iii) cyano bacteria (iv) archae bacteria
(b) (iii) and (iv)
Which of the following is not a criterion for classification of living organisms?
(d) Height of the plant
The feature that is not a characteristic of protochordata?
(c) Jointed legs
The locomotory organs of Echinodermata are
(a) tube feet
Corals are
(d) Cnidarians that live in colonies
Who introduced the system of scientific nomenclature of organisms
(b) Carolus Linnaeus
Two chambered heart occurs in
(b) fish
Skeleton is made entirely of cartilage in
(a) Sharks
One of the following is not an Annelid
(d) Urchins
The book Systema Naturae was written by
(a) Linnaeus
Karl Von Linne was involved with which branch of science?
(b) Taxonomy
Real organs are absent in
(b) Coelenterata
Hard calcium carbonate structures are used as skeleton by
(a) Echinodermata
Differentiation in segmental fashion occurs in
(a) Leech
In taxonomic hierarchy family comes between
(b) Order and Genus
5-Kingdom classification has given by
(b) R. Whittaker
Well defined nucleus is absent in
(a) blue green algae
The ‘Origin of Species’ is written by
(b) Darwin
Meena and Hari observed an animal in their garden. Hari called it an insect while Meena said it was an earthworm. Choose the character from the following which confirms that it is an insect.
(b) Body with jointed legs
Write true (T) or false (F)
(a) Whittaker proposed five kingdom classification.
(b) Monera is divided into Archaebacteria and Eubacteria.
(c) Starting from Class, Species comes before the Genus.
(d) Anabaena belongs to the kingdom Monera. (e) Blue green algae belongs to the kingdom Protista. (f) All prokaryotes are classified under Monera.
Fill in the blanks
(a) Fungi shows———mode of nutrition.
(b) Cell wall of fungi is made up of ———.
(c) Association between blue green algae and fungi is called as———.
(d) Chemical nature of chitin is ———. (e) ———has smallest number of organisms with maximum number of similar characters (f) Plants without well differentiated stem, root and leaf are kept in ———. (g) ———are called as amphibians of the plant kingdom.
You are provided with the seeds of gram, wheat, rice, pumpkin, maize and pea. Classify them whether they are monocot or dicot.
Gram—dicot Wheat—monocot Rice—monocot, Pumpkin—dicot Maize—monocot Pea—dicot
Match items of column
(A) with items of column
(B) (A) (B) (a) Naked seed (A) Angiosperms (b) Covered seed (B) Gymnosperms
(c) Flagella (C) Bryophytes
(d) Marchantia (D) Euglena (e) Marsilea (E) Thallophyta (f) Cladophora (F) Pteridophyta (g) Penicillium (G) Fungi DIVERSITY IN LIVING ORGANISMS 53 16-04-2018
Match items of column
(A) with items of column
(c) Metameric segmentation (C) Porifera
(B) (A) (B) (a) Pore bearing animals (A) Arthropoda (b) Diploblastic (B) Coelenterata
(d) Jointed legs (D) Echinodermata (e) Soft bodied animals (E) Mollusca (f) Spiny skinned animals (F) Annelida
Classify the following organisms based on the absence/presence of true coelom (i.e., acoelomate, pseudocoelomate and coelomate) Spongilla, Sea anemone, Planaria, Liver fluke Wuchereria, Ascaris, Nereis, Earthworm, Scorpion, Birds, Fishes, Horse.
Spongilla —Acoelomate Sea anemone—Acoelomate Planaria—Acoelomate Liver fluke—Acoelomate Wuchereria—Pseudocoelomate Ascaris—Psudocoelomate Nereis—Coelomate Scorpion—Coelomate Earthworm—Coelomate Birds, Fishes and Horse—Coelomate
Endoskeleton of fishes are made up of cartilage and bone; classify the following fishes as cartilagenous or bony Torpedo, Sting ray, Dog fish, Rohu, Angler fish, Exocoetus.
Torpedo—Cartilagenous, Sting ray—Cartilagenous, Dog fish— Cartilagenous, Rohu—Bony, Angler fish— Cartilagenous Exocoetus—bony.
Classify the following based on number of chambers in their heart. Rohu, Scoliodon, Frog, Salamander, Flying lizard, King Cobra, Crocodile, Ostrich, Pigeon, Bat, Whale
Rohu, Scoliodon— 2 chambered. Frog, Salamander, Flying lizard, King Cobra—3 chambered. Crocodile, Ostrich, Pigeon, Bat, Whale—4 chambered.
Classify Rohu, Scolidon, Flying lizard, King Kobra, Frog, Salamander, Ostrich, Pigeon, Bat, Crocodile and Whale into the cold blooded/warm blooded animals.
Cold blooded—Rohu, Scoliodon, Frog, Salamander, Flying Lizard, King Cobra, Crocodile, Warm blooded— Ostrich, Pigeon, Bat, Whale.
Name two egg laying mammals.
(i) Platypus (ii) Echidna
Fill in the blanks
(a) Five kingdom classification of living organisms is given by ———.
(b) Basic smallest unit of classification is ———.
(c) Prokaryotes are grouped in Kingdom ———.
(d) Paramecium is a protista because of its ———. (e) Fungi do not contain ———. (f) A fungus ——— can be seen without microscope. (g) Common fungi used in preparing the bread is ———. (h) Algae and fungi form symbiotic association called ———.
Give True (T) and False (F)
(a) Gymnosperms differ from Angiosperms in having covered seed.
(b) Non flowering plants are called Cryptogamae.
(c) Bryophytes have conducting tissue.
(d) Funaria is a moss. (e) Compound leaves are found in many ferns. (f) Seeds contain embryo. 16-04-2018
Give examples for the following
(a) Bilateral, dorsiventral symmetry is found in———.
(b) Worms causing disease elephantiasis is———.
(c) Open circulatory system is found in———where coelomic cavity is filled with blood.
(d) ———are known to have pseudocoelom.
Label a,b,c and d. given in Fig. 7.1 Give the function of (b) Fig. 7.1
This question refers to a figure in the original PDF.
(a) Dorsal fin (b) Caudal fin (c) Pelvic fin (d) Pectoral fin Function of Caudal fin–Caudal fin helps in streamlined movement in water. Long Answer Questions
Fill in the boxes given in Fig. 7.2 with appropriate characteristics/plant group (s) Fig. 7.2 DIVERSITY IN LIVING ORGANISMS 55 16-04-2018
This question refers to a figure in the original PDF.
(a) Thallophyta (b) Without specialized vascular tissue (c) Pteridophyta (d) Phanerogams (e) Bear naked seeds (f) Angiosperms (g) Have seeds with two cotyledons (h) Monocots ANSWERS 125
Write names of few thallophytes. Draw a labelled diagram of Spirogyra.
Ulothrix, Spirogyra, Cladophara, Ulva and Chara, Cell-wall Chloroplast Pyrenoids Nucleus Cytoplasm Spirogyra
Thallophyta, bryophyta and pteridophyta are called as ‘Cryptogams’. Gymnosperms and Angiosperms are called as ‘phanerogams’. Discuss why? Draw one example of Gymnosperm.
The Thallophyta, bryophyta and pteridophyta are called as ‘Cryptogams’ because the reproductive organs of these groups are inconspicuous or hidden. Seeds are absent. On the other hand ‘Phanerogams’ include gymnosperms and angiosperms which have well differentiated reproductive tissue and the embryo with stored food. Embryo develops into seed. Pinus Cycas
Define the terms and give one example of each
(a) Bilateral symmetry
(b) Coelom
(c) Triploblastic
You are given leech, Nereis, Scolopendra, prawn and scorpion; and all have segmented body organisation. Will you classify them in one group? If no, give the important characters based on which you will separate these organisms into different groups.
All organisms given in the question do not belong to same group. Leech and Nereis belong to phylum annelida because they have metamerically segmented body i.e., body is divided into many segments internally by septa. Body segments are lined up one after the other from head to tail. But Scolopendra, prawn and scorpion belong to phylum arthropoda as these have jointed legs and open circulating system.
Which organism is more complex and evolved among Bacteria, Mushroom and Mango tree. Give reasons.
Hint— Mango tree is more complex and evolved because, it is eukaryotic, autotrophic, terrestrial sporophyte with covered seed. The bacteria is unicellular prokaryote and fungi are the heterotrophic, simple thallophyte with no tissue systems.
Differentiate between flying lizard and bird. Draw the diagram.
Flying lizard belongs to group reptiles and characterised as cold blooded,body covered with scales and having three chambered heart, while birds belong to group aves and have characteristics of being warm blooded, having feather covered body, forelimbs modified as wings and having four chambered heart. Flying lizard (Draco) Pigeon
List out some common features in cat, rat and bat.
Bat, rat and cat belong to class mammalia and have following common features (a) All have notochord at some stage of life cycle. (b) All are warm blooded. (c) All have four chambered heart. (d) All have skin covered with hair and with sweat and oil glands.
Why do we keep both snake and turtle in the same class? 16-04-2018
Hint— Because both are (1) cold blooded (2) have scales (3) breathe through lungs (4) have three chambered heart, and (5) they lay eggs with tough covering. ANSWERS 127 C hapter 8 _lqucpq Multiple Choice Questions