agenda : hw recap: data analysis discussions: what does it take to be considered “living”? ...
TRANSCRIPT
Agenda: HW Recap: Data Analysis Discussions: What does it take to be
considered “living”? Application: Analyze samples and defend
whether they are living or not. Did you finish your Mythbusters anaylsis?
----------------------------------------------------------------Warm up:
1. Discuss with your group and list 4 ways you are like this tree.
------------------ HW: Study for your Quiz
tomorrow.
Thursday August 1, 2013
Characterisitics of Life
Biology – What’s in a name?? What dies BIOLOGY mean? “Bio-” means “life” “-ology” means “the study of”All living things share characteristics but are also
influenced by there surroundings.Factors that affect living things…BIOTIC factor– references aspects that affect life that
are considered “living” includes something that is DEAD – because it was once
living
ABIOTIC factor– references aspects that are NON- living (but can be just as important)
“A-” is a prefix for “opposite of” or “against”
Shoulder Partner…
Talk it over and come up with any 3 biotic factors and 3 abiotic factors.
1 minute… GO!
Quick share…
What are the biotic & abiotic factors in this scene?
What organisms are considered living?
Animals Fungi Plants
Protists Bacteria
What are the 7 basic characteristics of all
living things?
What does it mean to be alive?
Move? Reproduce? Breath? Eat? Heart Beat? Drink Water? Cells?
Cellular Organization
All living things are made of one or more cell. Highly organized
structure
And there is a hierarchy of organization in living things. Organism
Organ System
Organ
Tissue
Cell
Organelle
Multicellular Organisms
Single Cell Organisms
Metabolism / Use energy Obtain and use energy
(Eating, Breathing, Drinking Water)
What do all food chains start with?
Plants transfer sunlight into chemical energy.
Your cells need energy to grow, develop, repair damage, reproduce
Homeostasis Maintaining stable internal
condition when the outside can change.
What is a humans normal internal temperature?
Stability is incredibly important to our chemistry!
Growth & Development All organisms grow
and change There is a life cycle
for every organism, some more dramatic than others.
Reproduction/ Heredity All organisms reproduce in order to
continue the species’ existence. Genes (heredity) are passed on
from parents to offspring. Therefore, offspring are a mosaic
of traits from contributing parents.
Response! Respond and Adjust to Environment
All organisms respond to changes in their environments. Example
Light Gravity Heat Fight or flight
Phototropism Auxin, a growth regulator in
plants, controls directional cell elongation that takes place in phototropism
Evolution Populations of
organisms change over time leading to the great diversity in life we see.
4 Tenets of Evolution1.Variation2.Traits are passed on3.Overproduction4.Many offspring don’t survive because of competition.
Double Check
Let’s reconsider the question about the tree.
Which characteristics did you include? Which characteristics do you need to
change? Which characteristics do we need to
remove?
Honors
Practice Identifying the Characteristics in Samples… In your groups, analyze the picture and
decide if it’s living or not. Give three reasons for each.
Continuing… Yesterday you refreshed with what the
characteristics of life are. How did you do on the homework?
1. Polar Bear = Living
2. Rock = Not Living
3. Sunflower = Living
4. School of Fish = Living
5. Dirt = Not Living
6. Euglena = Living
7. Seeds = ?
Turn these in for credit.BIO
Concept Check
Is it Living?... Why?
Today…
You will choose an organism. If you have been reading the warm-ups
you should have brought in a picture from home.
You will use this picture as the focus for examining the properties of life further.
Properties of Life
Graphic Organizer
Is it living?
• “Living” is an important term that has very specific definitions.
• Unfortunately, it can sometimes be difficult identify all of them in living things.
• You know most of these properties already.• Recall yesterday’s question about the tree.• What were you ideas?• How about the apple?
1. Cellular OrganizationAll living things are made of one or more cells.
2. MetabolismLiving things break things down then build things back up. This is evident in obtaining energy to live (eating other organisms)
3. HomeostasisMaintaining stable internal conditions when things outside change. For example, we shiver when it’s cold and we sweat when it’s hot but our internal temperature stays pretty stable.
4. Growth & DevelopmentLiving things grow in size or number in cells and have a life cycle, they live and then eventually die.
5. Reproduction/HeredityLiving things make babies (officially called offspring). Those babies have traits given from their parents. Meaning they have genes (eye color for example) that were given to them by their parents.
6. Interaction/ResponsivenessLiving things respond to outside influences. Flowers open in sunlight and gazelle run when chased.
7. EvolutionAs generations increase, random mutation and genetic combinations contribute to variability.
These 7 terms define what is living.All life is united by these 7 properties.
7 Properties of Life
Properties of Life Classwork
• Choose your organism, any organism.– This should be the organism you brought in.– You can draw one or make it up if you didn’t.
• Draw or paste a picture of this organism in the middle of the page.– See next slide.
• In bubbles around the outside, label, define, and describe the 7 properties of life and how this organism displays using them.
• Once graded, these could be put up on the side wall.
Due: Monday 8/5Use color & Be neat & creative.Do this on a piece of copy/construction paper provided.
Property of Life:Explanation
Ex: Metabolism: the sum of chemical reactions in the body
that help build up & break down the organism.
The alien eats carbon asteroids that fall from its moon for
energy.
Property of Life:Explanation
Property of Life:Explanation
Property of Life:Explanation
Property of Life:Explanation
Property of Life:Explanation
Scoring: 25pts Total1pt. ea.: Each property is labeled.1pt. ea.: Each property is defined properly.1pt. ea.: Each property is related to your organism in a descriptive manner.4pts total: Presentation is neat and colorful!
Your organism goes here