Simple Animals

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Chapter 7 Simple Animals
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Chapter 7.1 Notes

• 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.

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• Symmetry
• Radial- around a circle
• Bilateral- cut into two halves.

Bilateral Symmetry
Radial Symmetry
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• Vertebrates- animals with a backbone.
• Invertebrates- animals without a backbone.

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• Animal Phyla (Phylums)
• Stinging-cell
• Soft-bodies
• Spiny-skin
• Chordates- the most complex
• Jointed-leg
• Sponges
• Worms

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Chapter 7.2 Notes

• Sponges-simple invertebrates that have pores.
• Do NOT move about freely.
• Live attached to rocks
• Water enters through pores and leaves through an
  opening
• Filter Feeders
• 2 cell layers thick. No tissue or organs.
• Have 3 cell types
• Trap food
• Cover and protect
• Make skeleton
• Reproduce sexually and asexually.

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• Stinging-cell animals- have hollow saclike bodies
  that lack organs.
• Nematocysts- stinging cells
• Tentacles- arm like parts
• Radial symmetry
• 2 cell layers
• One opening called a mouth
• Disc- structure they fasten to the bottom of
  ocean or rocks.
• Have muscle and nerve cells
• Most reproduce sexually

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Jelly Fish
Coral
Sea Anemone
Stinging cell Animals
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Chapter 7.3 Notes

• 3 phyla of worms
• Flatworms- the simplest worms. Examples Tapeworm
  (parasite) and planarian (Free-living).
• Roundworms- example hookworms (parasite).
• Segmented worms- most complex worms. Examples
  earthworm (Free-living) and leeches (parasite).

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• Life Cycle of a Tapeworm
• Pig or cows eat tapeworm eggs
• Eggs hatch in pigs/cows intestine
• Tapeworm enter blood stream
• Form cysts
• People eat undercooked meat
• Tapeworms get in their intestine and grow
• Body sections break off and leave the hosts body
  in solid waste.

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Life Cycle of the Tapeworm
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Tapeworm
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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.

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• 3 classes of soft-bodied animals (Mollusc)
• Gastropods- snails and slugs. Have wide muscular
  foot. Have single shell or no shell.
• Bivalves- clams, oysters, and scallops. Have 2
  shells.
• Cephalopods-octopus, squid, and cuttlefish.
  Squids and cuttlefish ave shells inside their
  bodies, octopus no shell.

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SLUG
Snail
Octopus
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Drawing Rules

• Use white paperno 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 sheetdraw big

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Worked Cited

• simple Animals. March 23, 2007.
  http//www.earthseaspacemuseum.org/img/activities_
  ocean_img/sea_sponge.jpg
• Coral. March 23, 2007. http//www.waterencyclope
  dia.com/images/wsci_01_img0119.jpg
• Radial Symmetry. March 23, 2007.
  http//www.geocities.com/Omegaman_UK/symmetry/SNFL
  AKE.gif
• Bilateral Symmetry. March 23, 2007.
  http//teacher.scholastic.com/lessonrepro/lessonpl
  ans/profbooks/images/hearts.gif

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• Vertebrates. March 23, 2007. http//www.edsci-af
  filiates.com/images/vertebrates_divider.jpg
• 5 kingdoms. March 23, 2007. http//www.sciencecl
  arified.com/images/uesc_06_img0326.jpg
• Sea Anemone March 26, 2007. http//www.britannic
  a.com/ebi/article-9276965
• Jelly Fish. March 26, 2007. http//www.gomanzani
  llo.com/scubamex/1jelly.jpg
• Sun Coral. March 26, 2007. http//www.melevsreef
  .com/pics/0604/sun_coral_914pm.jpg
• Tapeworm Lifecycle. March 27, 2007.
  http//www.scientific-art.com/GIF20files/Medical/
  tapeworm.gif
• Tapeworm. March 27, 2007. http//www.corkscrew-b
  alloon.com/03/11/2lon/img/26a1.jpg

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• Snail. March 28, 2007. http//www.worth1000.com/
  web/media/312375/Snails.jpg
• Slug. March 28, 2007. http//www.uidaho.edu/so-i
  d/entomology/Home__Garden/garden20slug.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