Solution of Chapter 7. Diversity in Living Organisms (NCERT Science Exemplar Book)

Find out incorrect sentence

Which among the following has specialised tissue for conduction of water?

(i) Thallophyta

(ii) Bryophyta

(iii) Pteridophyta

(iv) Gymnosperms

Which among the following produce seeds?

Which one is a true fish?

Which among the following is exclusively marine?

Which among the following have open circulatory system?

(i) Arthropoda

(ii) Mollusca

(iii) Annelida

(iv) Coelenterata

In which group of animals, coelom is filled with blood?

Elephantiasis is caused by

Which one is the most striking or (common) character of the vertebrates?

Which among the following have scales?

(i) Amphibians

(ii) Pisces

(iii) Reptiles

(iv) Mammals

Find out the false statement

Pteridophyta do not have

Identify a member of Porifera

Which is not an aquatic animal?

Amphibians do not have the following

Organisms without nucleus and cell organelles belong to

(i) fungi

(ii) Protista

(iii) cyano bacteria

(iv) archaea bacteria

Which of the following is not a criterion for classification of living organisms?

The feature that is not a characteristic of protochordate?

The locomotory organs of Echinodermata are

Corals are

Who introduced the system of scientific nomenclature of organisms

Two chambered heart occurs in

Skeleton is made entirely of cartilage in

One of the following is not an Annelid

The book Systema Naturae was written by

Karl Von Linne was involved with which branch of science?

Real organs are absent in

Hard calcium carbonate structures are used as skeleton by

Differentiation in segmental fashion occurs in

In taxonomic hierarchy family comes between

5-Kingdom classification has given by

Well defined nucleus is absent in

The ‘Origin of Species’ is written by

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.

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 belong to the kingdom Protista.

(f) All prokaryotes are classified under Monera.

Fill in the blanks

(a) Fungi shows ______ mode of nutrition.

(b) The 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 the smallest number of organisms with a 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.

Match items of column (A) with items of column (B)

Match items in column (A) with items of column (B)

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 , Scorpion, Ascaris , Birds, Nereis, Fishes, Earthworm, Horse.

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.

Classify the following based on number of chambers in their heart.

Rohu, Scoliodon, Frog, Salamander, Flying lizard, King Cobra, Crocodile, Ostrich, Pigeon, Bat, Whale

Classify Rohu, Scoliodon , Flying lizard, King cobra, Frog, Salamander, Ostrich, Pigeon, Bat, Crocodile and Whale into the cold blooded/warm blooded animals.

Name two egg laying mammals.

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 an embryo.

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 (b)

Fill in the boxes given in Fig. 7.2 with appropriate characteristics/plant group (s)

Write names of few thallophytes. Draw a labelled diagram of Spirogyra.

Thallophyta, bryophyta and pteridophyta are called as ‘Cryptogams’. Gymnosperms and Angiosperms are called as ‘phanerogams’. Discuss why? Draw one example of Gymnosperm.

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

Which organism is more complex and evolved among Bacteria, Mushroom and Mango tree. Give reasons.

Differentiate between flying lizard and bird. Draw the diagram.

List out some common features in cat, rat and bat.

Why do we keep both snake and turtle in the same class?