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