Classification of Living Things
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Transcript of Classification of Living Things
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Classification of Living Things
• Living species are placed into groups based on their observed characteristics.
• They are usually NOT placed into groups based on their habitat, their behavior, or their common names.
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6 Kingdoms of Living Things
• Archaebacteria
• Eubacteria
• Protista
• Fungi
• Plantae
• Animalia
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Bacteria are classified by SHAPE and BIOCHEMICALS
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Protista are classified by cell structures like cilia and flagella
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Fungi are classified by how they make SPORES
LifeCycle
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Plants are classified by VASCULAR tissue & REPRODUCTIVE structures
MOSS (and relatives) has NO vascular tissue.
All other plant groups DO have vascular tissue
Life Cycle
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Ferns reproduce with SPORES, not seeds
Life Cycle
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Conifers have seeds in CONES
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CONES are male or female
Life Cycle
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ANGIOSPERMS are flowering plants
Life Cycle
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Flowering plants can be MONOCOTS or DICOTS
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A COTYLEDON is a seed part
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Animal Phyla
• Porifera (sponges)
• Cnidaria (jellyfish)
• Platyhelminthes (flatworms)
• Nematoda (roundworms)
• Annelida (segmentedworms)• Mollusca (snails, clams, squid)
• Arthropoda (insects, crabs)
• Echinodermata (starfish)
• Chordata (vertebrates)
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Phylum Porifera: the Sponges
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Phylum Spongebobius:
Porifera are heterotrophic cells that group together
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Phylum Cnidaria: all members have stinging cells and one body opening
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Sponge Bob walking his jellyfish
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Phylum Cnidaria: corals and jellyfish
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Phylum Platyhelminthes….the flatworms
They all have one body opening and a HEAD
(CEPHALIZATION)
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Phylum Nematoda: the roundworms
All members of this group have TWO body openings
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Phylum Annelida: the segmented worms
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Phylum Mollusca:
All have a MANTLE which can produce “shell”
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Phylum Arthropoda:
All have an exoskeleton made of protein
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Phylum Echinodermata: Starfish and relatives
All have spiny skin and TUBE FEET
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Phylum Chordata
All have:
Dorsal nerve cord
Pharyngeal gill structures
MOST have a backbone (vertebrae)
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Phylum Chordata with no backbone
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Phylum Chordata: Class Chondrichthyes
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Phylum Chordata: Class Osteichthyes
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Phylum Chordata, Class Amphibia
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Phylum Chordata, Class Reptilia
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Phylum Chordata, Class Reptilia
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Phylum Chordata, Class Aves
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How did this happen?
• Write a story that explains these observations:
• DDT is an insect poison invented in 1941. When it was sprayed on mosquitoes in Savannah in 1942, 99% of mosquitoes died.
• When DDT was sprayed in Savannah in 1966, only 61% of the mosquitoes died.
• DDT is no longer used to control mosquitoes in Savannah