Question

1. what makes multicellular organisms different from unicellular organisms?

they are smaller and simpler
they are made of many cells with specialized functions
they reproduce by splitting into two
they do not need energy to survive

Explanation:

Multicellular organisms are composed of many cells, each with specialized functions. Unicellular organisms are single - celled and perform all functions within one cell.

Answer:

They are made of many cells with specialized functions