Chapter
#7
Simple
Animals
Chapter 7.1 Notes
1.
2.
3.
4.
Traits of Animals
Animals can not make food
Most animals can move from place to
place.
Animals have many cells. The cells make
up tissues and organs that form systems.
Most animals have symmetry.
Symmetry
1. Radial- around a circle
2. Bilateral- cut into two halves.
Radial Symmetry
Bilateral Symmetry
• Vertebratesanimals with a
backbone.
• Invertebratesanimals without a
backbone.
1.
2.
3.
4.
5.
6.
7.
Animal Phyla (Phylums)
Stinging-cell
Soft-bodies
Spiny-skin
Chordates- the most complex
Jointed-leg
Sponges
Worms
Chapter 7.2 Notes
Sponges-simple invertebrates that have pores.
1. Do NOT move about freely.
2. Live attached to rocks
3. Water enters through pores and leaves through
an opening
4. Filter Feeders
5. 2 cell layers thick. No tissue or organs.
6. Have 3 cell types
a) Trap food
b) Cover and protect
c) Make skeleton
7. Reproduce sexually and asexually.
Stinging-cell animals- have hollow saclike
bodies that lack organs.
1. Nematocysts- stinging cells
2. Tentacles- arm like parts
3. Radial symmetry
4. 2 cell layers
5. One opening called a mouth
6. Disc- structure they fasten to the bottom of
ocean or rocks.
7. Have muscle and nerve cells
8. Most reproduce sexually
Jelly Fish
Sea Anemone
Coral
Stinging cell Animals
Chapter 7.3 Notes
3 phyla of worms
1. Flatworms- the simplest worms.
Examples: Tapeworm (parasite) and
planarian (Free-living).
2. Roundworms- example: hookworms
(parasite).
3. Segmented worms- most complex
worms. Examples: earthworm (Freeliving) and leeches (parasite).
Life Cycle of a Tapeworm
1. Pig or cows eat tapeworm eggs
2. Eggs hatch in pigs/cows intestine
3. Tapeworm enter blood stream
4. Form cysts
5. People eat undercooked meat
6. Tapeworms get in their intestine and
grow
7. Body sections break off and leave the
hosts body in solid waste.
Life Cycle of the Tapeworm
Tapeworm
Chapter 7.4 Notes
• Soft-bodied animals (Mollusc)- are animals
with a soft body that usually have a shell
inside or outside.
• Are invertebrates (no backbone).
• The body is covered by a thin, fleshy
tissue called a mantle.
• Soft-bodied animals have a muscular foot
for moving from place to place.
3 classes of soft-bodied animals (Mollusc)
1. Gastropods- snails and slugs. Have wide
muscular foot. Have single shell or no
shell.
2. Bivalves- clams, oysters, and scallops.
Have 2 shells.
3. Cephalopods-octopus, squid, and
cuttlefish. Squids and cuttlefish ave shells
inside their bodies, octopus no shell.
SLUG
Snail
Octopus
Drawing Rules
1.
2.
3.
4.
5.
6.
7.
8.
Use white paper…no lines.
Do NOT fold paper
Put a title on your paper (Earthworm)
Name, date, hour
Label all parts
Straight lines when labeling parts.
Color
Use a full sheet…draw big
Worked Cited
• “simple Animals”. March 23, 2007.
http://www.earthseaspacemuseum.org/img/activi
ties_ocean_img/sea_sponge.jpg
• “Coral”. March 23, 2007.
http://www.waterencyclopedia.com/images/wsci_
01_img0119.jpg
• “Radial Symmetry”. March 23, 2007.
http://www.geocities.com/Omegaman_UK/symm
etry/SNFLAKE.gif
• “Bilateral Symmetry”. March 23, 2007.
http://teacher.scholastic.com/lessonrepro/lesson
plans/profbooks/images/hearts.gif
• “Vertebrates”. March 23, 2007. http://www.edsciaffiliates.com/images/vertebrates_divider.jpg
• “5 kingdoms”. March 23, 2007.
http://www.scienceclarified.com/images/uesc_06_img03
26.jpg
• “Sea Anemone” March 26, 2007.
http://www.britannica.com/ebi/article-9276965
• “Jelly Fish”. March 26, 2007.
http://www.gomanzanillo.com/scubamex/1jelly.jpg
• “Sun Coral”. March 26, 2007.
http://www.melevsreef.com/pics/0604/sun_coral_914pm.j
pg
• “Tapeworm Lifecycle”. March 27, 2007.
http://www.scientificart.com/GIF%20files/Medical/tapeworm.gif
• “Tapeworm”. March 27, 2007. http://www.corkscrewballoon.com/03/11/2lon/img/26a1.jpg
• “Snail”. March 28, 2007.
http://www.worth1000.com/web/media/312375/S
nails.jpg
• “Slug”. March 28, 2007.
http://www.uidaho.edu/soid/entomology/Home_&_Garden/garden%20slug
.jpg
• “Internal clam”. March 28, 2007.
http://www.bio200.buffalo.edu/labs/images/clam.
JPG
• “Octopus”. March 28, 2007.
http://www.glaucus.org.uk/Octopus-RY.jpg