The universal recipient blood group is :
O (+ ve)
AB (+ ve)
O (- ve)
AB (- ve)
B.
AB (+ ve)
According to Landsteiner and Decastello four types of blood groups (A, B, AB and O) are found in humans. Landsteiner and Veiner (1940) also discovered Rh factor which is represented by +ve or -ve mark. AB (+ve) is the universal recipient blood group and O (+ve) is the universal donor blood group.
Continuous bleeding from an injured part of body is due to deficiency of :
Vitamin A
Vitamin B
Vitamin K
Vitamin E
As per classification which of the following is correct ?
Ascaris, Pheretima, Grasshopper
Hydra, Pterido, Leucosolenia
Starfish, Grasshopper, Solen
Pila, Dentalium, Octopus
In which of the following class of Annelida, one pair ovaries and several pair testes are found ?
Archiannelida
Hirudinea
Oligochaeta
Polychaeta
Hydrophytes are characterised by :
thick and large leaf
delicate and mucilagenous stem
short spinous stem
all of the above
