what is life? levels of organization activity (theme: organization) characteristics of living things...
TRANSCRIPT
What is Life?
Levels of Organization Activity
(Theme: Organization)
Characteristics of Living Things
(Theme: Unity)
How are living things organized?!
• Emergent Properties!– What does this term mean?
– “A whole is greater than a sum of its parts”
– Apply to levels of organization activity.
Using your books…
• Summarize the levels of organization activity by finding a chart similar to the one on the right in your book (that you will sign out today!)
Brainstorm first…
• What must so-called living things do to be living?
What characteristics do the things in these pictures have in common?
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Cells
What characteristics do the things in these pictures have in common?
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Reproduction
What characteristics do the things in these pictures have in common?
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Based on Genetic Code
What characteristics do the things in these pictures have in common?
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Growth and Development
What characteristics do the things in these pictures have in common?
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Need for Materials and Energy
What characteristics do the things in these pictures have in common?
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Response to Environment
What characteristics do the things in these pictures have in common?
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Maintaining Internal Balance
What characteristics do the things in these pictures have in common?
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Evolution
Characteristics of Living Things
• Made of cells• Reproduce• Based on a genetic code (DNA)• Grow and Develop• Need Materials and Energy• Respond to Stimuli (Environment)• Maintain an Internal Balance (homeostasis)• Evolve/Adapt over time
To clarify…
• To each characteristic add your own notes based on the in-class discussion and book reading.
To practice…
• For homework, answer the virus question. This is a good test type question to see if you know and understand the characteristics of living things!
Sample in class additional notes…
• Made of cells: – Unicellular– Colonial– Multicellular
• Reproduce:– Asexual
• Budding and Binary fission• Vegetative propagation--Mrs. K’s Backyard
– Sexual– Can one organism use both?
Continued…• Based on a genetic code:
– DNA– RNA
• Growth vs. Development• Need materials and energy:
– Autotrophs• Photoautotroph
– Heterotrophs• Consumers & Decomposers
• Respond to stimuli:– What fits in here that defines animals?– How are plants different?
Finished!
• Maintain an Internal Balance
• Evolve– Can we come up with an accurate definition of
this? – Can individual organisms evolve?– What allows for evolution?
Did you get it?!?!
• Read about viruses in your book (Ch. 21 Sect 1)
• It is a debate among scientists as whether or not to classify viruses as living things. Citing examples from the reading, justify whether or not you the scientist would classify viruses as living things!
• A “advanced” answer would show a clear connection between today’s notes and understanding of virues!
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