Biology 160: Group Quiz 7
Name: ___________________________
Directions: Be sure to complete this quiz and email it to me by midnight on Wednesday, March 13.
(ann.murkowski@seattlecolleges.edu). Please clearly indicate your final selection of the single, best answer for each of
the following questions unless otherwise indicated. Unlike our other quizzes, notes and your text are fair game on this one!
1. (2 pts) All of the following are true of most animals except
a. they are haploid dominant
b. usually mobile during part of their life cycle
c. they are multicellular
d. they are usually heterotrophic
2. (2 pts) You identify an animal that is radially symmetrical, and has specialized stinging cells. This animal is
most likely a
a. flatworm
b. chordate
c. cnidarian
d. sponge
3. (2 pts) The simplest group of animals, the sponges, are characterized by
a. their complex tissues and radial symmetry
b. their complex tissues and bilateral symmetry
c. their lack of tissues and radial symmetry
d. their lack of tissues and lack of symmetry
4. Ordering (2 pts). In the space below, place the following list of Animals in order of their evolution from a
eukaryotic ancestor. Note that this order also reflects increasing complexity in body plan.
a. a marine sponge
b. a frog (a chordate)
c. a tapeworm (flatworm)
d. a sea anemone (cnidarian)
_______  _______  _______  _______
5. True or False (4 pts)
T
F
Plants like moss, ferns, and conifers have flagellated sperm that require water for
reproduction.
T
F
The Archae bacteria are found primarily in extreme environments (at high
temperatures, or high salinity for example).
T
F
Radial symmetry evolved later in the animal kingdom than did bilateral symmetry.
T
F
The presence of a coelom in an animal provides space to house and protect organ
systems.
6. Short answer (2 pts) While hiking through the woods, you discover an organism unknown to science! You
quickly name it after your favorite (or least favorite!) biology instructor, and then set out to determine what
Kingdom it belongs to. The organism is pale pink, about 5 cm tall (~2 inches), and doesn’t seem to move.
You quickly dissect it and discover that it has no internal digestive structures. What kingdom does this
organism most likely belong to, and why do you think so?
Continued on reverse.
7. (4 pts) Consider the three animals below. Complete the table below for each.
Phylum
Common Name
A
Flat worm
B
Earthworm
C
Roundworm
Type of Symmetry
Type of Gut
(sac-like or tube?)
Type of
Coelom?
8. (2 pts) Members of the phylum, Chordata, always share four key features at some point in their lifecycle.
(The tunicates, for example, only display all four during their larval stage.) What are these four
characteristics?