Transcript
Page 1: Classification of Living Things

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


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