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