In man which organisms cause abscesses on the skin of arms or legs?
A. Ascaris
B. Bacteria
C. Ring worm
D. Suinea worm
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In many which phylum the body of an organisms is usually divided in there regions called head, thorax and abdomen?
A. Arthropods
B. Chordata
C. Annelida
D. Echinodermata
In all arthropods,the body is covered with a chittinous cuticle which is secreted by the____________?
A. Endodermis
B. Mesophyll
C. Chitin
D. Epidermis
All insects have how many parts of legs?
A. 4
B. 2
C. 3
D. 6
In mouth cavity of many molluscs there is a rasping tongue like structure_________provided with many horny teeth.
A. Ligule
B. Radula
C. Mantle
D. Muscle
Snails belong to__________?
A. Cephalopodsxc
B. Gastropods
C. Bivalves
D. Athropods
It is stiff rod of special cells surrounded by connecive tissue present in the mid -dorsal region and appears in the embryos of all chordates
A. Placenta
B. Notochord
C. Cranianta
D. Ligule
The phylum chrordata comprise about how many species?
A. 25,000
B. 50,000
C. 100,000
D. 10,00,000
Sub- phylum vertebrate is also known as__________?
A. Pisces
B. Craniata
C. Aves
D. Amphibia
Mammalian kidney, under restricted water supply can conserve water by over ________ % reabsorption of glomerular filtrate
A. 80.50%
B. 90.50%
C. 95.50%
D. 99.50%