Question

What is the correct order of levels of organization in an organism, from the least complex to the most complex?

A.
organ→ system → tissue→ cell

B.
tissue → organ → cell → system

C.
system → tissue → organ → cell

D.
cell → tissue → organ → system

Answer 1

@k-nowhere

Answer 2

D.)

Answer 3

thx

Answer 4

Cells connect to make layers. Those layers are "tissue" then those layers build up and connect to make organ. Then the organ, (lets use the heart for example) does it's job. In the hearts case, it's job is pumping blood. Which is called the "circulatory system" or "cardiovascular system".

Answer 5

No problem :)