(i) Osmosis : The process of movement of solvent molecules from a region of low concentration to a region of higher concentration through a semipermeable membrane.
(ii) Allele – It is one of the alternative form of the same gene responsible for determining contrasting characteristics.
(iii) Pulse – It is a wave of pressure of blood passing through the arteries as it is pumped out of the heart.
(iv) Reflex Action : It is a spontaneous, automatic, involuntary response to a stimulus.
(v) Synapse : It is the point of contact between the axon endings of one neuron with the dendrites of the other neuron through where the impulse is transmitted from one neuron to the other.
