In excretory system of humans being some substance in the initial filtrate such as glucose , amino acid,salt and water are selectively reabsorbed in

A few drop of iodine solution were added to rice water the solution turned blue black in colour this indicates that the rice water contain

Which part of alimentary canal revives bile from the liver ?

in wich of the following vertebrate groups does heart not pump oxygenated blood to different parts of the body ?

Most of the digestion and absorption of he food take place in the :

Afull length image of distant tall building can definitely by seen by using

when an object is kept within the fpcus of concave mirror an enlarged image is formed behind the mirror. this image is

magnification produced by a rear view mirror fitted in vehicles:

two lenses a convex lens of focal length 20cm anad a concave lens for focal length 25 cm are held to close to each other . the focal length of the combination of the lenses is

the power of concave lens is

a solution of a substance which is used for white washing ?

All decomposition reaction are

in humans the oxygen rich blood from the lungs come to the

During respiration the exchange of gases take place in

The internal energy reserve in autotrophs is