What is the name of the body of multicellular algae?

Algae are inferior plants. This means that they do not contain any organs and tissues in their structure. Of course, this only applies to multicellular algae, since unicellular organisms, in principle, cannot have organs and tissues. The body of the algae is called the thallus. We can highlight some parts of the algae body. These are rhizoids that resemble the root, stem and thallus. Although these parts differ in appearance, they are composed of the same cells, so they are not different organs.