Fill in the blanks:
The process of obtaining and utilization of food by an organism is called.............. .

Fill in the blanks: The plants which depend on the food produced by other plants are called................ .

The process of obtaining food by Amoeba is known as :

Fill in the blanks. The slow process of conversion of dead vegetation into coal is called__________.

Fill in the blanks The process of changing a substance from gaseous state to liquid state is called_______.

Fill in the blanks : the process of formation of spermatozoa from spermatogonia is called .. ………. And the process of maturation of spermatides into spermatozoa is called ………… .