Monday, August 10, 2018 The statement of the hypothesis must be: Proven correct Testable Observed Something other scientist stated before

The Scientific Rules for being considered Living ORDER + A The Scientific Rules for being considered Living

What Characteristics do all Living Things Share? All living things have a cellular organization and contain DNA. A cell is the basic unit of life. Unicellular- one celled Multicellular- more than one cell

O – Organized by Cells and contain DNA If you are living you are made of one or more cells.

2. Living things react to stimuli. A stimulus is something in the environment that causes a reaction, or a response. A response is an action or change in behavior.

If you are living you have to react to the outside world R – Responds to Stimuli If you are living you have to react to the outside world

3. Living things grow and develop. Growth- an increase in the size of an organism. Development- a progressive change in an organism over time.

D – Develop and Grow If you are living you have to get bigger and develop into a more complex being

4. All living things use energy. Energy is used to nourish, repair and create new cells. We obtain energy from converting the foods that we eat into energy that can be used by the cells.

E – Energy /Eat If you are a living animal you get your energy from eating If you are a living plant you make your energy from a process called photosynthesis

5. All living things have the ability to reproduce. All living things arise from other living things. The theory of Spontaneous Generation, which proposed that life can appear spontaneously from non-living things, was disproved by experiments performed by Redi and Pasteur.

If you are living you have to be able to make copies of yourself R – Reproduce If you are living you have to be able to make copies of yourself

+A – Adapt to Environment The process of maintaining a life supporting system is called homeostasis. If you are living you must be able to change to the outside world

ORDER +A To be living you must be able to do all of these things by yourself. If you don’t do all those things you are not alive according to science. Are the following things ALIVE:

Living vs. Non-Living Non-Living – Living – Dead – you were once able to perform all the activities of ORDER+A but can not now. Man-Made – you were made by man and could never do ORDER+A. Never Alive – you were made by nature and could never do ORDER+A Living – You can perform all of the activities of ORDER +A at the current time.

All living things Need Shelter – a place to live Food – whether they eat or make it themselves Water – H2O without hydration you will die Air – O2 whether you breath or get it out of water you will die without it.

How do Organisms Obtain Food for Energy? Autotrophs- make their own food (Plants). Heterotrophs- obtain food from other sources. Herbivore- eat plants. Carnivore- eat animals (meat). Omnivore- eat plants and animals.

Test on Friday Need to know: The five (5) Chara of life What living things need to survive How do Organisms obtain food for energy

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