Question

HELP PLEASE
1) Group of cells of one type.
2) Group of different tissues working together to carry out a job
3) Group of different organs working together to carry our a job

Answer 1

Resposta:

Humans—and other complex multicellular organisms—have systems of organs that work together, carrying out processes that keep us alive.

The body has levels of organization that build on each other. Cells make up tissues, tissues make up organs, and