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

Unicellular Organisms Entire organism is made up of one single cell Entire organism is made up of one single cell Bacteria and protists Bacteria and protists Smallest unit capable of all life functions

Multicellular Organisms The organism is made up of many cells The organism is made up of many cells Cells have specialized functions within the organism Cells have specialized functions within the organism

 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

Fifth Characteristic of Living Things The fifth characteristic of living things is that all living things grow. The fifth characteristic of living things is that all living things grow.

Development

Sixth Characteristic of Living Things The sixth characteristic of living things is reproduction. All living things need to reproduce to survive. 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. 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. 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. Bring them to class and be prepared to share with the class whether they are living things or non-living things and why.