Review chapter 3
Animals as Living
Things
What are the 5
characteristics all
animals have?
1.
2.
3.
4.
5.
made of many cells
reproduce
move
grow and change
eat food
What does vertebrate mean?
has a backbone
What does invertebrate mean?
has no backbone
What is radial symmetry?
body points extend out
from a center point
What is bilateral symmetry?
two sides are mirror images
What is cold-blooded?
temperature changes
with temperature
of surroundings
What is warm-blooded?
body temperature
stays constant
What is an endoskeleton?
internal supporting
structure
What is an exoskeleton?
hard skeleton outside
of the body
Name some characteristics
of sponges.
1. no symmetry
2. hollow
3. no bones
4. grow back missing parts
Name some characteristics
of cnidarians.
1. poison stingers for
protection and catching prey
2. radial symmetry
Name some characteristics
of flatworms.
1. ribbonlike bodies
2. head and tail
3. food and waste from
same opening
Name some characteristics
of roundworms.
1. rounded bodies, pointed ends
2. food in through mouth
3. separate opening for waste
Name some characteristics
of segmented worms.
1. bodies divided into
sections
2. has head and tail
Name some characteristics
of mollusks.
1. soft body
2. live on land or water
3. have one or two shells
Name some characteristics
of echinoderms.
1. spiny-skinned
2. star design
3. tiny tube feet
Name some characteristics
of arthropods.
1. jointed legs
2. body divided into
sections
3. gills or open-tube
breathing
Name some
characteristics
of jawless fish.
1. soft and slimy
2. suckerlike mouths
Name some
characteristics
of cartilaginous fish.
1.
2.
3.
4.
skeleton of cartilage
movable jaw
fins
sandpaper-like skin
Name some
characteristics
of bony fish.
1. jaws, skeleton of bone
2. scales protect skin
3. fins to steer in water
Name some characteristics
of amphibians.
1. life in water and on land
2. live near water to keep
from drying out
Name some characteristics
of reptiles.
1.
2.
3.
4.
dry skin
scales
skin keeps from drying out
tough egg shells
Name some characteristics
of birds.
1.
2.
3.
4.
light, warm feathers
beaks, no teeth
clawed feet have scales
wings
Name some characteristics
of mammals.
1. warm blooded
2. have hair
3. females produce milk