What is the most important reason for the immense success of arthropods?
1. Chitinous exoskeleton
2. Uricotelic nature
3. Compound eye
4. Multipurpose appendages
Which of the following is not an arthropod characteristic?
1. Jointed appendages
2. Non-segmented bodies
3. Periodic moulting
4. Articulated exoskeleton
Which of the following features is not present in the phylum – Arthropoda?
(1) Metameric segmentation
(2) Parapodia
(3) Jointed appendages
(4) Chitinous exoskeleton
Peripatus is a connecting link between
(1) Ctenophora and Platyhelminthes
(2) Mollusca and Echinodermata
(3) Annelida and Arthropoda
(4) Coelenterata and Porifera
Which one of the the following phyla is correctly matched with its two general characteristics?
(1) Arthropoda − Body divided into head, thorax and abdomen and respiration by mouth
(2) Chordata − Notochord at early stage only and separate anal and urinary openings to the outside
(3) Echinodermata − Pentamerous radial symmetry and mostly internal fertilization
(4) Mollusca − Normally oviparous and development through a trochophore or veliger larva
Which one of the following groups of three animals each is correctly matched with their one characteristic morphological feature?
|
Animals |
|
Morphological Feature |
(1) |
Liver fluke, sea anemone, sea cucumber |
– |
Bilateral |
(2) |
Earthworm, prawn, scorpion |
– |
Jointed appendages |
(3) |
Scorpion, spider, cockroach |
– |
Ventral solid central nervous system |
(4) |
Cockroach, locust, Taenia |
– |
Metameric segmentation |
Which one of the following pairs is mismatched?
(1) |
Pila globosa |
– |
pearl |
(2) |
Apis indica |
– |
honey |
(3) |
Kenia lacca |
– |
lac |
(4) |
Bombyx mori |
– |
silk |
Which one of the following is not a living fossil?
(1) King crab
(2) Sphenodon
(3) Archaeopteryx
(4) Peripatus
Two common characters found in centipede, cockroach and crab are:
(1) compound eyes and anal cerci
(2) jointed legs and chitinous exoskeleton
(3) green gland and tracheae
(4) book lungs and antennae
Chitin is a polysaccharide found in the exoskeleton of
(1) prawn
(2) insects
(3) crabs
(4) all of these