State reasons for the following:
$(a)$ Protists have appendages like cilia or flagella.
$(b)$ Angiosperms are called so.
$(c)$ Fish have scales on their body.

(N/A) Protists possess appendages like cilia or flagella primarily for locomotion,allowing them to move from one place to another in their aquatic environment.
$(b)$ The term Angiosperms is derived from the Greek words 'angio' meaning 'covered' and 'sperma' meaning 'seed'. They are called so because their seeds are enclosed within fruits.
$(c)$ Fish have scales on their body to provide protection,reduce friction while swimming,and prevent their skin from damage or decay due to constant exposure to water.