Study Guide – Animals Quiz
Name: KEY
Block_______ Date____________
1. What are the differences between radial symmetry, bilateral symmetry, and asymmetry?
In radial symmetry the body parts are arranged around a circle with a center point. In
bilateral symmetry, there are identical halves (same on both sides). In asymmetry, no
pattern of symmetry (different on both sides and no center point)
2.
Compare/Contrast Estivation and Hibernation
Estivation
Long period of
inactivity during the
summer when it is
Long period of
Hibernation
Lower
inactivity during the
temperature and
winter when it is too
metabolism
too hot
cold
3. What is migration?
Moving from one place to another because of lack of food, to find a mate, or to avoid
inclement weather
4. Name 4 different types of animal communication and explain them.
Pheromones-chemicals used to communicate
Vocal-making sounds like barking, purring, growling
Touch-nuzzling, striking, piercing
Body language-cowering, standing on hind legs
5. True or false: Animal cells are surrounded by a cell membrane and a cell wall. F
6. Describe four types of group behavior and explain each of them.
Cooperation-organisms work together to accomplish a common goal
Competition-organisms struggle to obtain limited resources needed by all
Territory-organisms protect a certain area where they can get their needs met
Social hierarchy –organisms are aware of dominance, leadership, and other roles in their
population and behave accordingly
7. Explain the difference between learned and innate behaviors. Give one example of
each. Learned behavior must be obtained through experiences (often from parents), but
innate behavior is obtained through heredity (DNA). Learned = speaking a language,
Innate = the ability to make noise
8. Fill in the chart below.
Phylum
Vertebrate
Symmetry
Nervous
System
Distinguishing
Characteristics
Example
Cnidarians
No skeleton
and no
backbone
Radial
Nerve net
-stinging cells“nematocysts”
-digestive tract-same in and
out
Coral,
hydra,
jellyfish
Mollusks
No skeleton
and no
backbone
Asymmetry
and
bilateral
Complex
with a
nerve ring
-Mantle-protection
Radula-scraper
-digestive tract that goes all
the way through
-move with head, foot, or
middle
Clams,
mussels,
oysters,
octopus,
squid, slugs
-segmented bodies
-multiple hearts
-Digestive tract that goes all
the way through
Earthworms
and
leeches
Many have
shells
Annelid Worms
No skeleton
and no
backbone
Bilateral
Brain
bundle
Arthropods
Exoskeleton
made of
chitin
Bilateral
Brain
Echinoderms
Endoskeleton
with spines
Chordates
Endoskeleton
with
backbones
Radial (5
part) and
bilateral
Bilateral
-8 jointed legs
-3 body segments
-claws and/or pinchers
-2 eye stalks
Shrimp,
lobster,
insects,
scorpions,
spiders
Ganglia
-spiny skin
-radial symmetry
Starfish, sea
cucumbers,
sea urchins
Complex
brain and
nervous
system
-notochord-backbone
-tail at some point of
development
-closed blood system
-ventral heart
Hawk,
frog, snake,
gold fish,
shark