Aquatic plants are covered with mucilage which
a. Make different part of plant spongy
b. Protects them from pathogens and animals
c. Functions as lubricant

Q.

The essential functions of roots are anchorage and absorption of water and minerals in the terrestrial plant.

(a) What functions are associated with the roots of aquatic plants?

(b) How are roots of aquatic plants and terrestrial plants different?

Q. The pigment, melanin in animals protects them from UV radiations. The functionally equivalent pigment in plants is

Q. In an aquatic environment, microscopic animals and plants are collectively known as

Q. Define the term 'cell' for plants/animals. Name the different organelles that make a cell. Explain why none of these are called the structural and function unit of life.

Q. The cultivation of aquatic animals or plants for food is called