Name: 
 

Unit A Chapter 4 Lesson 8 Assessment



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

Animals that have backbones are called
a.
invertebrates.
b.
vertebrates.
c.
mammals.
d.
spiniferous.
 

 2. 

Tissues of different kinds come together to make a(n)
a.
system.
b.
cell.
c.
organ.
d.
skeleton.
 

 3. 

Simple fish with a tough nerve cord that runs down the back instead of a backbone are
a.
Mollusca.
b.
Osteichthys.
c.
Agnatha.
d.
Mammalia.
 

 4. 

The building blocks of living things are
a.
organ systems.
b.
muscles.
c.
bones.
d.
cells.
 

 5. 

A group of organs that work together to do a certain job is a(n)
a.
tissue.
b.
organ complex.
c.
building block.
d.
organ system.
 

 6. 

Animals that do not have backbones are called
a.
spineless.
b.
vertebrates.
c.
invertebrates.
d.
chordates.
 

 7. 

Similar cells that have the same job or function come together to make a(n)
a.
organ.
b.
tissue.
c.
organ system.
d.
nerve.
 

 8. 

Bony fish that have bones instead of cartilage and a movable flap over their gills that help them breathe while staying still are called
a.
Mollusca.
b.
Agnatha.
c.
Osteichthys.
d.
Mammalia.
 

 9. 

The first group of vertebrates to grow and develop out of the water, breathe through their lungs and have waterproof scales on their skins is the
a.
Mollusca.
b.
Annelida.
c.
Reptilia.
d.
Amphibia.
 

 10. 

The correct sequence showing organ system development is
a.
cells, tissues, organs, organ systems.
b.
tissues, cells, organs, organ systems.
c.
cells, tissue, organ systems, organs.
d.
cells, organs, tissues, organ systems.
 

 11. 

Bony fish can hover at any depth because they have a special organ called a
a.
leveler.
b.
swim bladder.
c.
swim controller.
d.
depth finder.
 



 
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