Depending on the species, algae can be unicellular or multicellular.
All living things are made up of cells. Single celled plants and animals have one cell each. Many bacteria, algae and other microscopic plants and animal can be multi-cellular. Large plants and animals (higher order) can have trillions of cells each.
Algae grows on the sea bed in shallow waters. Yes, majority of algae are unicellular. One common example of a unicellular algae is the green algae Prototheca.
More.
cells
All organisms are made up of one or more cells. Organisms are a contiguous living system, such as plants and bacteria.
All organisms are made up of one or more cells. (Viruses are a special case; they are not made of cells but they are not really organisms, either.)
Yes, organisms are made of one or more cells.
yes
Multicellular organisms.
Yes. Every living thing is made up of one or more cells.
Every organism are made of cells. Other wise they are not considered living.
Eukaryotes are made up of one or more cells.