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Saturday 13 February 2016

Biology MCQs Part 14

biology mcqs, biology mcqs
131. In all arthropods,the body is covered with a chitinous cuticle which is secreted by the.?
A. Echinoderm
B. Mesophyll
C. Chitin
D. Epidermis

132. All insects have how many parts of legs.?
A. 3
B. 4
C. 5
D. 6

133. Snails belong to.?
A. Cephalopodsxc
B. Gastropods
C. Athropods
D. None of them

134. It is stiff rod of special cells surrounded by connective tissue present in the mid -dorsal region and appears in the embryos of all chordates.?
A. Notochord
B. Placenta
C. Cranianta
D. None of Them

135. They are considered to be the most primitive and are surely the first of the vertebrates.?
A. Frogs
B. Jawless fishes
C. Reptiles
D. Amphibinas

136. The phylum chordate comprise about how many species.?
A. 10,000
B. 30,000
C. 50,000
D. None of them

137. In mouth cavity of many molluscs there is a rasping tongue like structure _______ provided with many horny teeth.?
A. Ligule
B. Bivalves
C. Radula
D. Muscle

138. Sub-phylum vertebrate is also known as.?
A. Craniata
B. Pisces
C. Aves
D. Amphibia

139. In man which organisms cause abscesses on the skin of arms or legs.?
A. Suinea worm
B. Ascaris
C. Bacteria
D. None of Them

140. In many which phylum the body of an organisms is usually divided in there regions called head, thorax and abdomen.?
A. Annelida
B. Arthropods
C. Chordata
D. None of them

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