initiation what type of organisms exist besides plant and animals? how do you know they are...
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InitiationWhat type of organisms exist besides plant and animals? How do you know they are
different than a plant or and animal?
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Classification of Organisms
hummingbird-main_full.jpgPart3
Kingdoms and Domains
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Key Question
How are organisms grouped into specific kingdoms and
domains?
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Objective
SWBAT...classify organisms into specific kingdoms and
domains.
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Key Points As new organisms are discovered, scientists determine the appropriate kingdom that particular organism falls into.
The six kingdom system of classification includes Eubacteria, Archeabacteria, Protista, Fungi, Plantae, and Animalia.
The three domains include Eukarya, Bacteria, Archaea.
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Major Vocabulary
Kingdom
Domain
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5 Kingdoms vs. 6 KingdomsEarly scientists used to
only classify organisms into to Kingdoms: Plantae and Animalia.
Eventually as technology improved, 5 Kingdoms were used to classify organisms: Plantae, Animalia, Fungi, Protista, Monera.
Recently, scientists determined that the Kingdom Monera was actually two distinct Kingdoms: Eubacteria and Archaebacteria.
Why do you think scientists changed from a 5 Kingdom to a
6 Kingdom classification system?
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Biology Rewind: Plant vs. AnimalTake about 3 minutes and tell me 3
differences between plant and animal cells.
Hint: Look on page 175 of your biology book.Answer:
1. Plant cells have a thick cell wall.
2. Plant cells have chloroplasts.
3. Plant cells have a large central vacuole.
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3 DomainsScientists soon discovered that only having 6 kingdoms was not good enough.
They needed a taxon to be more inclusive than a Kingdom.
As a result, scientists created 3 Domains: Bacteria, Archaea, and Eukarya
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Domain BacteriaUnicellular bacteria.
Prokaryotic cells.
Corresponds to the Kingdom Eubacteria.
Extremely diverse
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Domain ArchaeaUnicellular
Prokaryotic Cells
Corresponds to the Kingdom Archaebacteria.
Live in extreme environments.
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Biology Rewind: Origin of the
Eukaryotic Cell.Describe a theory that hypothesizes about the
origins of the eukaryotic cell.
Hint: Look on page 427 of your biology textbook.
Endosymbiotic Theory!!!!
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Domain EukaryaConsists of all organisms that have cells with nuclei.
Includes 4 different Kingdoms: Protista, Fungi, Plantae, Animalia
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Biology Rewind: Prokaryote vs.
EukaryoteConstruct a vin diagram showing the differences and similarities between Prokaryotic and
Eukaryotic cell.Prokaryotic Eukaryotic
Both Hint: pg. 172-173
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Termination
Describe what we learned about
today.