Match the following columns (I) and (II): Column I Column II (a) Porifera (i) Roundworms (b) Echinodermata (ii) Tube feet (c) Bony fish (iii) Osculum (d) Mammals (iv) Frog (e) Nematoda (v) Chameleon (f) Protochordata (vi) Balanoglossus (g) Amphibia (vii) Labeo (h) Reptilia (viii) Jointed appendages (i) Annelida (ix) Pinna (j) Arthropoda (x) Segmented worms

(a)-(iii), Porifera have a cavity in the centre called spongocoel with a single large opening osculum at the upper end. (b)- (ii), The body cavity of Echinodermata is modified into a unique water vascular system that moves organs of respiration and locomotion, the tube feet or podia. (c)- (vii), They are exclusively aquatic animals and are called fishes. They obtain dissolved oxygen from water by making use of their respiratory organs known as gills. (d)-(ix), The mammals are warm-blooded animals with four-chambered heart. A fleshy external ear called pinna is present. (e)- (i), They are bilaterally symmetrical and triploblastic like Platyhelminthes. But the body is cylindrical (or round like) rather than flattened unlike that of flatworms and hence also called roundworms. (f)- (vi), They are bilaterally symmetrical, triploblastic and coelomic animals. They possess the notochord at some stage of their life. Examples are Herdmania , Amphioxus and Balanoglossus . (g)- (iv), They differ from the fishes in lacking scales on the skin, having mucus glands in the skin, and having a three-chambered heart. Respiration occurs either through gills or the lungs. (h)- (v), They are cold-blooded terrestrial or aquatic vertebrates. Their body is covered by scales which prevent the loss of water. The body is divided into head, neck, trunk and tail. (i)- (x), They are also bilaterally symmetrical and triploblastic but they have a true body cavity (called coelom). This allows true organs to be packaged in the body structure. Hence, there is extensive organ differentiation. The differentiation occurs in a segmental fashion. The segments are lined up one after another from head to tail due to which they are also called segmented worms. (j)- (viii), Phylum Arthropoda includes the animals comprising exoskeleton made of chitin and jointed appendages. Column I Column II (a) Porifera (iii) Osculum (b) Echinodermata (ii) Tube feet (c) Bony fish (vii) Labeo (d) Mammals (ix) Pinna (e) Nematoda (i) Roundworms (f) Protochordata (vi) Balanoglossus (g) Amphibia (iv) Frog (h) Reptilia (v) Chameleon (i) Annelida (x) Segmented worms (j) Arthropoda (viii) Jointed appendages

Match the following columns (I) and (II): Column I Column II (a) Naked seed (i) Angiosperms (b) Covered seed (ii) Gymnosperms (c) Flagella (iii) Bryophytes (d) Marchantia (iv) Euglena (e) Marsilea (v) Thallophyta (f) Cladophora (vi) Pteridophyta (g) Penicillium (vii) Fungi

(a)- (ii), Gymnosperms are naked seeded plants. In other words, it can be said that their seeds are not enclosed by the fruit or ovary wall. (b)- (i), Inside the flowers, there is a female reproductive organ called ovary which forms the fruit. The ovary encloses the ovule which forms the seed. Thus the seeds are enclosed inside the fruit or ovary. (c)- (iv), Flagella helps in the process of locomotion. Euglena are unicellular eukaryotes. They make use of appendages such as a whip-like flagella for moving around. (d)- (iii), Marchantia is a simple land plant which grows on cool damp places. They do not have a vascular system for conduction of substances and reproduce via spore. They fall under the division Bryophyta. (e)- (vi), In Marsilea , plant body is differentiated into root, leaf and stem. They have specialised vascular tissues (xylem and phloem) for the conduction of water and other substances from one part of the body to another. They are categorised under Pteridophyta. (f)- (v), Cladophora is a green thallophyte and does not have well-differentiated root, stem and leaves. Such type of body design is called a thallus. The plants in this group are commonly called algae and fall under Thallophyta. (g)- (vii), Penicillium is a multicellular, heterotrophic eukaryote in which the cell wall is made up of chitin. It produces antibiotics. It falls under kingdom Fungi. Column I Column II (a) Naked seed (ii) Gymnosperms (b) Covered seed (i) Angiosperms (c) Flagella (iv) Euglena (d) Marchantia (iii) Bryophytes (e) Marsilea ((vi) Pteridophyta (f) Cladophora v) Thallophyta (g) Penicillium (vii) Fungi

Match the following columns (I) and (II): Column I Column II (a) Pore bearing animals (i) Arthropoda (b) Diploblastic (ii) Coelenterata (c) Metameric segmentation (iii) Porifera (d) Jointed legs (iv) Echinodermata (e) Soft bodied animals (v) Mollusca (f) Spiny skinned animals (vi) Annelida

(a)- (iii) Pores known as ostia are present in these animals. They are non motile animals attached to some solid support. They are commonly called sponges. The phylum is Porifera. (b)- (ii) The body is made up of two layers of cells. One makes up cells on the outside of the body (called ectoderm) and the other makes inner lining of the body (called endoderm). Hence, they are also called diploblastic. This is seen in Coelenterata. (c)-(vi) The body is divided into segments both externally and internally. The segments are lined up one after another from head to tail due to which the Annelids are also called segmented worms. (d)- (i) Arthropoda has jointed legs which are used for locomotion, feeding or sensory purposes. So, they are also called jointed legged animals. (e)- (v) In these bilaterally symmetrical animals, the coelomic cavity is reduced while the segmentation is very little. Molluscs have a soft body covered with a hard calcareous shell. (f)- (iv) The spiny skinned animals have rich deposits of calcium carbonate on their rough hard walls. Animals belonging to phylum Echinodermata have spiny skin. Column I Column II (a) Pore bearing animals (iii) Porifera (b) Diploblastic (ii) Coelenterata (c) Metameric segmentation (vi) Annelida (d) Jointed legs (i) Arthropoda (e) Soft bodied animals (v) Mollusca (f) Spiny skinned animals (iv) Echinodermata

MEDIUM

9th CBSE

IMPORTANT

Earn 100

Draw a flowchart showing the classification of the plant kingdom.

Important Questions on Diversity in Living Organisms

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9th CBSE

IMPORTANT

Secondary Biology FIrst And Second Term of CLASS IX>Chapter 3 - Diversity in Living Organisms>Diagrammatic Questions>Q 6

Draw a flowchart showing the Whittaker system of classification.

MEDIUM

9th CBSE

IMPORTANT

Secondary Biology FIrst And Second Term of CLASS IX>Chapter 3 - Diversity in Living Organisms>Match The Following>Q 1

Match the following columns (I) and (II):

Column I	Column II
(a) Porifera	(i) Roundworms
(b) Echinodermata	(ii) Tube feet
(c) Bony fish	(iii) Osculum
(d) Mammals	(iv) Frog
(e) Nematoda	(v) Chameleon
(f) Protochordata	(vi) Balanoglossus
(g) Amphibia	(vii) Labeo
(h) Reptilia	(viii) Jointed appendages
(i) Annelida	(ix) Pinna
(j) Arthropoda	(x) Segmented worms

MEDIUM

9th CBSE

IMPORTANT

Secondary Biology FIrst And Second Term of CLASS IX>Chapter 3 - Diversity in Living Organisms>Match The Following>Q 2

Match the following columns (I) and (II):

Column I	Column II
(a) Naked seed	(i) Angiosperms
(b) Covered seed	(ii) Gymnosperms
(c) Flagella	(iii) Bryophytes
(d) Marchantia	(iv) Euglena
(e) Marsilea	(v) Thallophyta
(f) Cladophora	(vi) Pteridophyta
(g) Penicillium	(vii) Fungi

MEDIUM

9th CBSE

IMPORTANT

Secondary Biology FIrst And Second Term of CLASS IX>Chapter 3 - Diversity in Living Organisms>Match The Following>Q 3

Match the following columns (I) and (II):

Column I	Column II
(a) Pore bearing animals	(i) Arthropoda
(b) Diploblastic	(ii) Coelenterata
(c) Metameric segmentation	(iii) Porifera
(d) Jointed legs	(iv) Echinodermata
(e) Soft bodied animals	(v) Mollusca
(f) Spiny skinned animals	(vi) Annelida