Question

What makes the seaweed different from all the other plants?

Answer 1

They don't have the complex system of roots, specialized tissues and leaves that help plants move water and nutrients in their body. Seaweeds can do photosynthesis in all their tissues; most plants photosynthesize only in their leaves.

Answer 2

They are unicellular

Step-by-step explanation:

All plants beside seaweed (algae) are multicellular; they are made up of more than one cell.

Seaweeds are unicellular; they are made up of only one cell.