To help readers better understand harmful algal blooms
which organizational pattern has the author used?
Read this excerpt from a book.
Harmful algal blooms, or HABS, occur when colonies of
algae—simple plants that live in the sea and freshwater-
grow out of control while producing toxic or harmful effects
on people, fish, shellfish, marine mammals, and birds. The
human illnesses caused by HABs, though rare, can be
debilitating or even fatal.
O definition
O foreword
o classification
O advantages and disadvantages