1.
2.
3.
4.
If a group of organs work together to perform a specific job, what are they called?
a.
helper organs
c.
an organism
b.
an organ system
d.
tissue systems
Which of the following does NOT have organelles?
a.
algae
c.
fungi
b.
bacteria
d.
plants
Groups of similar cells that all do the same sort of work are called __________.
a.
tissues
c.
cell systems
b.
organs
d.
organ systems
Put the level of organization in order from smallest to largest.
a.
organ system, organs, tissues, and cells
c.
organs, tissues, cells, and organ system
b.
cells, organs, tissues, and organ systems
d.
cells, tissues, organs, and organ system
5.
6.
7.
8.
Blood is considered a(n) __________.
a.
tissue
c.
cell
b.
organ system
d.
organ
What is the smallest unit of life in all living things called?
a.
a cell
c.
an atom
b.
bacteria
d.
a molecule
Which of the following is an organ?
a.
muscle tissue
c.
stomach
b.
blood tissue
d.
nerve tissue
Which of the following is NOT an organ?
a.
skin
c.
blood tissue
b.
bones
d.
the heart