Unit 7:
Biodiversity
Practice Test
1.
What are single-celled organisms that are eukaryotes?
a.
protozoa
b.
archaebacteria
c.
eubacteria
d.
cyanobacteria
Hint
2.
In modern taxonomy, each family is divided into groups of what classification?
a.
kingdom
b.
phylum
c.
class
d.
genus
Hint
3.
What is an organism that is new to an area, a species with no ancestry in the area?
a.
threatened species
b.
exotic species
c.
native species
d.
endangered species
Hint
4.
Most scientists currently believe that life formed on Earth about how long ago?
a.
5 billion years
b.
3.8 billion years
c.
4 million years
d.
6000 years
Hint
5.
The first humans appeared on Earth during what geologic era?
a.
Mesozoic
b.
Precambrian
c.
Cenozoic
d.
Paleozoic
Hint
6.
What are prokaryotic organisms that tend to be very small?
a.
fungi
b.
protozoa
c.
algae
d.
bacteria
Hint
7.
In modern taxonomy, each class is divided into groups of what classification?
a.
kingdom
b.
phylum
c.
class
d.
order
Hint
8.
What kind of animals do not have backbones?
a.
invertebrates
b.
primates
c.
mammals
d.
vertebrates
Hint
9.
What are single-celled or multicellular eukaryotic organisms that contain pigments for photosynthesis?
a.
protozoa
b.
cyanobacteria
c.
algae
d.
bacteria
Hint
10.
In modern taxonomy, each phylum is divided into groups of what classification?
a.
genus
b.
family
c.
class
d.
species
Hint
