Animal kingdom
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Transcript of Animal kingdom
![Page 1: Animal kingdom](https://reader036.fdocuments.in/reader036/viewer/2022070511/58a5ea911a28aba5728b4ca1/html5/thumbnails/1.jpg)
ANIMAL KINGDOM
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Characteristics of all Animals
• They are made of cells, which form tissues, which form organs which form organ systems.
• They obtain food by eating other organisms (herbivores, carnivores or omnivores).
• Most animals reproduce sexually but some can reproduce asexually.
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• All animals move in order to satisfy 1 of their basic needs (food, water, shelter, escaping danger)
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Types of food eaters
Carnivore - meat eater (either a predator - prey relationship or a scavenger)
Herbivore - plant eater
Omnivore - eats plants and meat
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Division of animals
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Animals have bilateral symmetry (1 line that can divide the animal into 2 identical parts)
or radial symmetry ( many lines that can divide the animal into equal parts).
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Sub Kingdom: Invertebrates• Sponges• Cnidarians• Worms
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Sponge• Simplest form of animal• No tissues or organs• heterotrophic & cells
that have specialized jobs
• Bodies pierced all over with openings called pores
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How do Sponges eat &
breathe?• Collar cells on the
inside of central cavity trap bacteria & protists & digest them.
• Sponges get O2 by diffusion.
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Cnidarians• Specialized tissues - no organs.• Radial symmetry
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Digestion• Capture prey using stinging cells to inject
venom - paralyzes prey • Pull prey into mouth, digest in body cavity
digestive system: 1 opening - expel food from mouths also.
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Reproduction• asexually by budding &
sexually. • Some have both sexes
within 1 individual others in separate individuals.
• Examples include jellyfish, sea anemones and coral.
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Worms• Flatworms (Platyhelminthes)
• Roundworms (Nematoda)
• Segmented worms (Annelida)
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All Worms…
• Have tissues, organs and organ systems.
• Have bilateral symmetry.• Have a brain.• Reproduce both sexually and
asexually.• Can replace parts by a process called
regeneration.
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PHYLUM MOLLUSCAClams, snails, squid, octopus
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Most mollusks have a hard shell covering their soft bodies.
Clams have a wedge-shaped muscular foot used for locomotion.
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PHYLUM CHORDATAFish, amphibians, reptiles, birds, mammals
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Members of Phylum Chordata have a backbone (they are vertebrates).
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Class Chondrichthyes includes fish whose skeletons are made of cartilage,
such as sharks, rays, and skates.
Fish
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Class Osteichthyes includes fish whose skeletons are made of bone.
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Class Amphibia includes semi-aquatic animals with moist skin. They must
return to the water to breed.
Amphibia
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Class Reptilia includes snakes, lizards, turtles, crocodiles, and iguanas.
They have dry, scaly skin.
Reptiles
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Members of Class Aves have wings and feathers for flight.
Birds
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Class Mammalia includes animals with hair or fur. Females have mammary
glands to nurse their young with milk.
Mammals