Do Now Which object is living? What MAKES it alive? List at least 3 reasons.
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Transcript of Do Now Which object is living? What MAKES it alive? List at least 3 reasons.
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Do Now
• Which object is living? What MAKES it alive? List at least 3 reasons.
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Objectives
• Identify the 4 unifying themes of Biology.
• Explain what characteristics an organism must have to be considered alive.
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Unifying themes of Biology
• 1. All living things share common characteristics
• 2. All living things share common needs
• 3. Living Things meet their needs through interactions with the environment
• 4. The types and numbers of living things change over time
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1) All Living Things Share Common Characteristics
a) Made of 1 or more cells.
Unicellular• Small, hard to see• directly exchange nutrients and waste with environment
Multicellular• Work together• cells have specialized jobs and work together to keep organism alive
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All Living Things Share Common Characteristics
b) Organized
• All parts work together to take in nutrients and remove waste
• Body plan allows it to survive in its environment
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All Living Things Share Common Characteristics
c) Growth and Development
*Cell division and cell differentiation*
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All Living Things Share Common Characteristics
http://www.youtube.com/watch?v=WFDHWk_bjsU
d) Responds to stimuli
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All Living Things Share Common Characteristics
• Limited Life Span
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2) All Living things share common needs.a) We need energy!!
• Energy is the ability to do work.• The sun is the ultimate source of energy!
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Energy
• Can come from food and is converted into usable form, think calories
• Energy moves along food web, only 10% of energy transferred to each level
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How do we get our energy?
• Autotroph (Producers)
• Heterotroph (Consumers)
• Herbivore
• Carnivore
• Omnivore
• Scavenger
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2) All Living things share common needs.
B) Materials1.) Water
(a) Cells contain mostly water(b) Reactions within the body occur need water
2.) Oxygen - for cellular respiration in animal and plant
cells3.) Carbon Dioxide
-for photosynthesis in plant cells 4.) Nitrogen
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2) All Living things share common needs.
C) living space• Protection• Sources of nutrients• Area to grow and develop
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3) Living Things meet their needs through interactions
with the environment• A) Environment: everything that surrounds
an organism.– Living factors (biotic factors)– Non-living factors (abiotic factors)
• Ex: sunlight, temperature, climate, rocks, etc.
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3) Living Things meet their needs through interactions
with the environment• B) Interactions- 2 or more things affecting
each other.
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Think-Pair-Share
• Name at least 5 DIFFERENT interactions occurring in the following picture.
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Do Now
• List 2 characteristics that all living things share.
• List 2 needs that all living things share.
• What is the scientific term for a living thing? Non-living?
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4. The types and numbers of living things change over time
• Biodiversity- variety of living organisms– a. there are about 1.4 million different species– b. Species- group of interbreeding organisms– c. Fossils- are evidence of species existence;
they have lived, died, and evolved over time.
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Adaptations
• What is an adaptation?– characteristic of an organisms that allows it
to better survive in its environment
*Organisms within a species must adapt to changing environments or they will become extinct!!*
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Can you spot the adaptation in each picture?
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Imaginary Creature Project
• Read the handout for instructions
• Assignment will be due the next class.
• You must make an ORIGINAL CREATURE!!
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Quiz
• You will have a “quest” on MONDAY 9/26
• Review the study guide, your notes, the powerpoint on the website, and the jeopardy game to help you study.
• We will do a quick lab tomorrow and then play jeopardy to review.