Explain why it is easier to gain weight than to lose it, and why most people who lose weight tend to regain it. Consider the effects of weight gain and lose on metabolism and the endocrine system and the effects of low calorie diets.
the function of the stomata in a leaf is?
a)to regulate oxygen
b)to regulate the flow of cabon-dioxide
c)to regulate the flow of water
d)to regulate the flow of cabon-dioxide,oxygen and water
during lag-phase of a bacterial growth the organism is?
a)growing at maximum rate
b)declining in growth
c)adapting to new environment
d)growing at minimum rate
which of these statements best describe a character of living things?
a)utilise energy from the environment
b)generate energy from environment
c)destroy energy from environment
d)multiply energy from environment