EASY
9th CBSE
IMPORTANT
Earn 100

Select the correct option :
Which among the following have open circulatory system in the given options given below.
(i) Arthropoda (ii) Mollusca (iii) Annelida (iv) Cnidaria
(i) Arthropoda (ii) Mollusca (iii) Annelida (iv) Cnidaria

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Important Questions on Diversity in Living Organisms
EASY
9th CBSE
IMPORTANT
Organisms without nucleus and cell organelles belong to
(i) Fungi (ii) Protista (iii) Archaebacteria (iv) Cyanobacteria

MEDIUM
9th CBSE
IMPORTANT
Which among the following has specialized tissue for conduction of water?
(i) Gymnosperm (ii) Bryophyta (iii) Thallophyta (iv) Pteridophyta

EASY
9th CBSE
IMPORTANT
Which among the following have scales?
(i) Amphibians (ii) Pisces (iii) Reptiles (iv) Mammals

MEDIUM
9th CBSE
IMPORTANT
Characteristic features of Aves are
(i) Mammary glands are absent
(ii) Mammary glands are present
(iii) Forelimbs are modified into wings
(iv) Wings are absent

MEDIUM
9th CBSE
IMPORTANT
Bony fishes are characterised by
(i) Cartilaginous endoskeleton (ii) 5 - 7pairs of gill slits
(iii) Terminal entering mouth (iv) 4 pairs of gill slits

EASY
9th CBSE
IMPORTANT
Annelids have________
(i) Unjointed appendages
(ii) Closed circulatory system
(iii) Jointed appendages
(iv) Open circulatory system

MEDIUM
9th CBSE
IMPORTANT
Reptilia are characterised by _____
(i) Three chambered heart
(ii) Incompletely four chambered heart
(iii) Fertilization is external
(iv) Fertilization is internal

EASY
9th CBSE
IMPORTANT
Male Ascaris can be distinguished from female one______
(i) Curved posterior (ii) Round shape end
(iii) Presence of penial setae (iv) Straight posterior
