Give common characteristics of red algae.

(N/A) $\rightarrow$ Majority of the red algae are marine with greater concentrations found in warmer areas.
$\rightarrow$ They occur in both well-lighted regions close to the surface of water and also at great depths in oceans where relatively little light penetrates.
$\rightarrow$ Body structure: The thalli of most of the red algae are multicellular. Some of them have complex body organization.
$\rightarrow$ Stored food: The food is stored as floridean starch,which is very similar to amylopectin and glycogen in structure.