(2) Segmentation in the body is first observed in which of the following??
A. Platyhelminthes
B. Mollusca
C. Annelida
D. Arthropoda
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(c) Annelida
(3) Water vascular system is the characteristic of which of the following groups??
A. Mollusca
B. Arthropoda
C. Echinodermata
D. Annelida
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(c) Echinodermata
(4) In Reptilia, Which animal has a four-chambered heart??
A. Lizard
B. Snake
C. Crocodile
D. Turtle
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(c) Crocodile
Explanation - Heart is usually three-chambered in reptiles, but crocodile are the only reptile with fully developed four - chambered heart, just like mammals.
(5) Which is the largest phylum in the animal Kingdom??
A. Annelida
B. Arthropoda
C. Mollusca
D. Chordata
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(b) Arthropoda
(6) All Vertebrates posses:?
A. An Exoskeleton
B. A notochord throughout life
C. A Vertebral column
D. None of the above
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(c) A Vertebral column
(7) In which phylum is the bioluminescence property found??
A. Cnidaria
B. Ctenophora
C. Porifera
D. Platyhelminthes
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(b) Ctenophora
Explanation - Bioluminescence (the property of a living organism to emit light) is well-marked in ctenophores.
(8) In which phylum are asymmetrical animals found??
A. Cnidaria
B. Platyhelminthes
C. Annelida
D. Porifera
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(d) Porifera
(9) What is the outermost layer of the human body???
A. Dermis
B. Epidermis
C. Muscle
D. Skin
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(b) Epidermis
(10) The correct sequence of taxanomic categories in decreasing order is ???
A. Species-Genus-family-order-phylum-kingdom
B. Kingdom-phylum-class-order-family-Genus-species
C. Phylum-kingdom-class-order-family-Genus-species
D. Genus-species-family-order-class-phylum-kingdom
