What is Biology?. The study of life and interactions between living things All organisms depend...

What is Biology?

The study of life and interactions between living things All organisms depend on other organisms

Biologists study problems and propose solutions Medical research to cure disease Human effect on the health of the planet

Objectives

Be able to determine whether something is a living thing or a non-living thing.

Learn and understand the 6 main characteristics of living things.

First Characteristic of Living Things

The first characteristic of living things is that they are all composed of cells.

Cells are the itsy bitsy puzzle pieces that make up all living things.

Unicellular OrganismsEntire organism is made up of one single cell

Bacteria and protists

Smallest unit capable of all life functions

http://www.stg.srs.com/directorates/anthrax.gif

Multicellular OrganismsThe organism is made up of many

cells

Cells have specialized functions within the organism

http://www.wnrmag.com/images/photo/1999/aug99/disjunct/fern.jpg

http://www.rrz.uni-hamburg.de/biologie/b_online/fo04/2vergrzw.jpg

http://microscopy.fsu.edu/cells/plants/images/plantcell.jpg

Have an orderly structure

Second Characteristic of Living Things

At the Cellular level:

At the

Molecular

level:

All living things use energy

Third Characteristic of Living Things

Metabolism

Fourth Characteristic of Living Things

The fourth characteristic of living things is homeostasis.

This is maintaining the normal conditions inside of their bodies.

Respond and adapt to their environment

Stable interior conditions

Even though exterior conditions are changing

http://images.google.com/imgres?imgurl=http://www.e-tradepages.com/Images/digital%20thermometer%20pic.jpg&imgrefurl=http://www.e-tradepages.com/ear-thermometer.htm&h=1191&w=1772&sz=207&tbnid=pXxDAoyLVA4J:&tbnh=100&tbnw=148&start=8&prev=/images?q=digita

Fifth Characteristic of Living Things

The fifth characteristic of living things is that all living things grow.

Development

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http://images.google.com/imgres?imgurl=http://images.meredith.com/lhj/images/2002/08/l_EV015-002.jpg&imgrefurl=http://www.lhj.com/lhj/story.jhtml?storyid=/templatedata/bhg/story/data/teen_puberty_progress_04252003.xml&h=282&w=200&sz=6&tbnid=rSk-4qG_ieUJ:&t

http://images.google.com/imgres?imgurl=http://www.nwk.usace.army.mil/harryst/gif/young_girl.jpg&imgrefurl=http://www.nwk.usace.army.mil/harryst/heritage_days.htm&h=1024&w=768&sz=132&tbnid=jQYB98UqsqkJ:&tbnh=149&tbnw=112&start=82&prev=/images?q=young+girl

Sixth Characteristic of Living Things

The sixth characteristic of living things is reproduction. All living things need to reproduce to survive.

Six Characteristics of Living Things

1. Cells

2. Organization

3. Energy

4. Homeostasis

5. Growth

6. Reproduction

Homework

Go home and find 5 pictures of living things and 5 pictures of non-living things.

Either out of a magazine, real photos or you can even draw them.

Bring them to class and be prepared to share with the class whether they are living things or non-living things and why.

What is Biology?. The study of life and interactions between living things All organisms depend...

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