What is the hierachy of living things?

As we have already learned cells are the basic building block of life. But what is it called when many cells get together? And what is an organism? Are you an organism?

Read the article in class and click on the link below to answer follow up questions.


Is my dog an organism?


Xylema dn Phloem are found in plants. What would they be called? Are they cells, tissue, organs, a body system, or an organism?

Xylem and Phloem