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Characteristic Of
Animals
Multicellular
Heterotrophic
No Cell Walls
Most are Motile
Eukaryotic
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What must animal do in order tosurvive?
Feeding- Energy Respiration- Exchange gases Circulation- move materials around the
body Excretion- get rid of waste Response- react to external stimuli.
Movement- Move from place to place. Reproduction- create new organisms.
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1. Porifera
2. Cnidarian3. Flatworms
4. Roundworms
5. Segmented worms
6. Mollusks
7.Arthropods8. Echinoderms7
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Diseases caused by roundworms:
In humans, can be contracted by eating infected pork.5% of cases are fatal
Matures in the intestines of the hostEating vegetables that are not washed
Soil
Walking barefoot
anemia, malnutrition, and in children causes under-development
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Ecology:
Recycling in nature
Diet of many birds
Diet of fish
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Major Characteristics:
Segmented bodies covered in an exoskeleton
of (Carbohydrate).
Jointed appendages
Legs, antennae
Three segments:
Head, Thorax, Abdomen
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Exoskeleton
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Exoskeleton
ProtectionHelps prevent water loss
Provides framework formuscle attachmentDoes not grow. Whenthe organism outgrows it,it molts.
Metamorphosis (Insects)
Adult stage and larval stage
do not compete for food.Feeding:Can be herbivores,carnivores, and omnivores.
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Circulation
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ReproductionInternal fertilization land or
external Aquatic
CirculationOpen
circulatorysystem Well
developed heartwith arteriesand vessels
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Response
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ResponseWell
developednervous system
with brain
Sensitiveorgans such as
eyes and tastereceptors 34.2
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Arthropod Diversity!!
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Termites destroy woodMoths eat cloth
Locusts destroy crops
Cotton Boll WeevilsMosquitoes and
diseases
Bees, butterflies, etc.,
pollinate cropsSome produce silk, wax,
honey
Food
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Insects and communicationSounds- chirps, buzzLight- Male fireflies
Chemicals- Pheromones(mate, danger, or alert)
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Complex group that works together for the
good of the colony.
Different roles are preformed by groups
called castes.Each castes has a different body form to
carry out their specific task.
Very sophisticated communication.
Bees Dance!
Ants leave pheromone trails.
Carpenter ant castes, fromleft to right: queen, wingedmale, major worker, minor
worker
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Spiny Skin
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y
~7,000 species
Sea stars, sand dollars, and sea urchins
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All are aquatic-
marineSpiny skinInternal Skeleton
Move with tubefeetsuction cup
Sand dollars andsea urchins have
moveable spines.
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F di
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Feeding:
Various methods
Sea Star:
Pushes stomach out through its mouth
(which is on the underside) into a clam
and then digests.
Can regenerate missing parts
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Ecology:Major food source for other marine animals
Carnivorous echinoderms help controlpopulations of clamsCrown of Thorns sea star destroys coral
reef systems.
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