Fertilisation is _____________ in humans (external/internal)

Fertilisation takes place in _____________

Match the following {:("A) Oviparous ( )","1. Tadpole to adult"),("B) Metamorphosis ( )","2. Birds"),("C) Embryo ( )","3. Fertilisation outside the body"),("D) External fertilization ( )","4. Developed Zygote."):}

Double fertilisation is characteristic of

The supportive skeletal structures in the human external ears and in the nose tip are example of

(A): A series combination of cells is used when their internal resistance is much smaller than external resistance. (R ) When cells are connected is series the current through external resistance is I=(nE)/(R+nr)

External fertilisation occurs in which of the following pairs of animals ?

The work done by all the forces (external and internal) on a system equals the change in