31. Give reasons for the following:
(5 x 1=50
a) Classification and evolution are closely linked
b) Being healthy is not the same as being disease-free
c) Doctors ask for the symptoms a person is experiencing before diagnosing them
further
d) The process of osmosis is very important for plants to survive
e) The epidermis in plants is necessary for protecting the plant
Answers
Answer:
a) characteristic that cone into existence earlier are likely to be more basic than characteristic that have come into existence later.This means that classification of life forms will be closely related to their evolution.
c)Doctors ask the symptoms first to Specify or know ,which problems or a disease a patient is suffering to diagnose a patient properly..
b)a person is said to be disease free when he /she is devoid of desease and a healthy person is the one ,whom physical ,mental ,emotional and physiological health is fit and fine
D) osmosis is responsible for ability of plant root to draw water from the soil .2)Its also responsible for controlling the movement of guard cells.3)Water enters the roots by osmosis.
e)because it provides a protective barrier against mechanical injury ,water loss and infection..
i hope it will help u ..