941 Diatoms belong to___________? Biology Medium Full question → A Chrysophyta B Bacillariophyceae C Xanthophyceae D Both A. and B.
942 Which organisms are sometimes called the ” pastures of the sea”? Biology Medium Full question → A Diatoms B Radiolarians C Dinoflagellates D Foraminiferans
943 The wax present on the body of cockroach is secreted: Biology Medium Full question → A Mucocytes B Leucocytes C Oenocytes D Granulocytes
944 The bristles on the body of the cockroach arise from__________? Biology Medium Full question → A Epidermis B Trichogen cell C Basement membrane D Malpighian cell
945 Melanin pigment in cockroach is found in__________? Biology Medium Full question → A Epicuticle B Exocuticle C Endocuticle D All of these
946 Chitin in cockroach is absent in____________? Biology Medium Full question → A Epicuticle B Exocuticle C Endocuticle D All of these
947 In man which organisms cause abscesses on the skin of arms or legs? Biology Medium Full question → A Ascaris B Bacteria C Ring worm D Suinea worm
948 In many which phylum the body of an organisms is usually divided in there regions called head, thorax and abdomen? Biology Medium Full question → A Arthropods B Chordata C Annelida D Echinodermata
949 In all arthropods,the body is covered with a chittinous cuticle which is secreted by the____________? Biology Medium Full question → A Endodermis B Mesophyll C Chitin D Epidermis
951 In mouth cavity of many molluscs there is a rasping tongue like structure_________provided with many horny teeth. Biology Medium Full question → A Ligule B Radula C Mantle D Muscle
952 Snails belong to__________? Biology Medium Full question → A Cephalopodsxc B Gastropods C Bivalves D Athropods
953 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 Biology Medium Full question → A Placenta B Notochord C Cranianta D Ligule
954 The phylum chrordata comprise about how many species? Biology Medium Full question → A 25,000 B 50,000 C 100,000 D 10,00,000
955 Sub- phylum vertebrate is also known as__________? Biology Medium Full question → A Pisces B Craniata C Aves D Amphibia
956 They are considered to be the most primitive and are surely the first of the vertebrates? Biology Medium Full question → A Frogs B Reptiles C Amphibinas D Jawless fishes
957 Scolidon or dog fish belong to the group of fishes called__________? Biology Medium Full question → A Cartilaginous fishes B Bony fishes C Running fishes D Jawless fishes
958 Nephrostome in earthworm opens in____________? Biology Medium Full question → A External space B Internal Body cavity C In gut D In Bladder
959 The nephridia of earthworm open into the coelom by_________? Biology Medium Full question → A Nephrostome B Nephridiopore C Flame cell D Anus
960 Mammalian kidney, under restricted water supply can conserve water by over ________ % reabsorption of glomerular filtrate Biology Medium Full question → A 80.50% B 90.50% C 95.50% D 99.50%