Download - An investigation to identify the organism, algae or water mold fungi, present in a water sample
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An investigation to identify the organism, algae or water mold fungi, present in a water sample
Unidentified Aquatic Organism
http://www.brainpop.com/science/scientificinquiry/scientificmethod/
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ALGAE or FUNGI ???
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FUNGI
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Water Molds
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More similar to animals
Eat leaf litter in stream bedsAttach to leaves SINK
Intake O2 and exhale CO2
Live in flowing fresh water streamsLive on stream beds (bottom)
Reproduce by spores
Microscopic
Water Molds
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ALGAE
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More similar to plants
Need nutrients like Nitrogen (NO3-, NO2-)
Make their own food PHOTOSYNTHESISNeed SUNLIGHT
Intake CO2 and exhale O2
Reproduce by dividing
Live in calm fresh and marine watersFloat near surface
Microscopic
ALGAE
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You received a water sample from research scientist Jay Beebs
X
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Upon initially observing these organisms the characteristics are the same…
Came from a freshwater sample
Similar shape/ morphology
Microscopic Similar size
You know that these organisms are either fungi or algae…..but how will you determine their identities!?!?
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Using the information you learned about water
mold fungi and algae design a scientific
experiment to determine the identity of the
organism in your water sample
Your task!
Who am I?Who am I?
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FUNGI ALGAE
BOTH• Eat leaves
• Attach to leaves/sink
• Inhale O2
• Live in flowing water
• Live on stream bottom
• Reproduce with spores
• Live in freshwater
• Microscopic
• Shape
• Make their own food
• Float
• Intake CO2
• Prefer calm waters
• Live in surface water
• NEED light
• Reproduce by dividing
• Need Nitrogen