-The terminal part of vertebral column in man is called Coceyx.

-Beingn tertain malaria is caused by plasmodium vivax.

-The life history of human malarial parasite in Anopheles was first described by Sir Ronald Ross.

-The mouth parts of anopheles are adapted to piercing and sucking type feeding.

-The "Urinary system" of the body consists of 3 organs.

-Haryersion canals are present in Bone.

-The heart bear is initiated and regulated by nodal tissue made of specialized cardiac muscles called Purkinje tusse.

-The gestation period of human being is Nine months.

-Hally's comet will return in the year 2062.

-The speed of light is nearly 300,000 km/sec.

-Our solar system has about 50 satellites.

-There is about 340 million cubic miles of liquid water on the surface of the earth

-Ducts are small tubes which transfer the secretion of glands.

-Borneo, sumatra , kenya ,uganda, brazil , colombia and equadore are some countries through which the equator passes.

-Computer virus has created from pakistan