7 Characteristics of 7 Characteristics of LIFELIFE

Mrs. MacWilliamsMrs. MacWilliams

Academic Biology ClassAcademic Biology Class

Mnemonic DeviceMnemonic Device

GOGO

RACER!!!!RACER!!!!

7 Characteristics of 7 Characteristics of LIFELIFE

1.1. GROW AND DEVELOPGROW AND DEVELOPExample:Example:

Larva (eggs) – maggots – adult fliesLarva (eggs) – maggots – adult flies

Monster Inside Me: Botfly

2.2. ORGANIZATIONORGANIZATION– Biological Levels of OrganizationBiological Levels of Organization::

atoms atoms molecules molecules macromolecules macromolecules organelles organelles cells cells tissues tissues organs organs organ systems organ systems organisms/species organisms/species populations populations communities communities ecosystems ecosystems biomes biomes biosphere biosphere

--MUST MEMORIZE THESE IN ORDER MUST MEMORIZE THESE IN ORDER FORWARD AND BACKWORDFORWARD AND BACKWORD

The smallest level of organization of The smallest level of organization of LIVING things is cells. LIVING things is cells.

3.3. REPRODUCEREPRODUCE– Sexual ReproductionSexual Reproduction

Two cells unite to produce a new organismTwo cells unite to produce a new organism–Example: Humans (most multi-cellular Example: Humans (most multi-cellular

organisms)organisms)– Asexual ReproductionAsexual Reproduction

Single organism can reproduce without the Single organism can reproduce without the aid of another.aid of another.

–Example: starfish, tapewormsExample: starfish, tapeworms

Monster inside of me: Tapeworm

4.4. ADAPT TO THE ENVIRONMENTADAPT TO THE ENVIRONMENT– HOMEOSTASISHOMEOSTASIS: the ability to maintain : the ability to maintain

constant or stable conditions necessary for constant or stable conditions necessary for life.life.

– Homeostatic mechanismHomeostatic mechanism: : a regulatory a regulatory mechanism that contributes to maintaining a mechanism that contributes to maintaining a state of equilibrium state of equilibrium

HOMEOSTATIC MECHANISMSHOMEOSTATIC MECHANISMS1.1. ThermoregulationThermoregulation Nerve cells sense the core body temperature

drops below 37°C (98.6° F) hypothalamus produces chemicals that signal cells throughout the body to speed up their activities (ex. shivering) which produces heat.

Once body temperature is restored, nerve cells trigger the hypothalamus to inhibit further production of chemicals.

If body temperature rises too far above 37°C (98.6° F), the hypothalamus slows down cellular activities to minimize the production of heat.

HOMEOSTATIC MECHANISMSHOMEOSTATIC MECHANISMS2.2. Water regulationWater regulation

3.3. Oxygen regulationOxygen regulation

**We will talk about these two later in the year.**We will talk about these two later in the year.

5. CELLS5. CELLSUnicellular - Unicellular - made up of only one cellmade up of only one cell

Ex: Ex: ProtozoanProtozoan, bacteria, bacteria

Multi-cellular –Multi-cellular –made up of more than one cellmade up of more than one cell

Ex: Humans, cats, plants, fungusEx: Humans, cats, plants, fungus

1. 1. CatabolismCatabolism

Breaking down complex substances into Breaking down complex substances into simpler substances. Ex: Digestion simpler substances. Ex: Digestion

22. . AnabolismAnabolism

Putting together simple substances to form a Putting together simple substances to form a complex substance. Ex: Photosynthesiscomplex substance. Ex: Photosynthesis

3. 3. MetabolismMetabolism

The balance of anabolism and catabolismThe balance of anabolism and catabolism

6. ENERGY USE TYPES OF ENERGY USE

Types of FeedersTypes of Feeders

1. 1. AutotrophAutotroph-- An organism that An organism that MAKESMAKES its own its own foodfood

2. 2. HeterotrophHeterotroph-- An organism that An organism that CANNOT CANNOT MAKE MAKE its own organic food; must consume its own organic food; must consume other organismsother organisms

7. 7. RESPOND TO STIMULIRESPOND TO STIMULI stimulusstimulus – a change that an organism can – a change that an organism can

detectdetect Example responses: Example responses:

–rabbit runs away from predator rabbit runs away from predator –plants move their leaves to face sunlightplants move their leaves to face sunlight–in low light, eye pupils dilate to allow more light to pass in low light, eye pupils dilate to allow more light to pass into the eyeinto the eye

A few last vocab wordsA few last vocab words

1.1. DormantDormant- is not showing all characteristics - is not showing all characteristics of life, but could in the future (ex seed).of life, but could in the future (ex seed).

2.2. InanimateInanimate- never been alive, never will be - never been alive, never will be (ex. Plastic bottle)(ex. Plastic bottle)

3.3. Product of a living thingProduct of a living thing- something that - something that comes out of a living thing (ex honey comes out of a living thing (ex honey comes out of a bee).comes out of a bee).

A few last vocab wordsA few last vocab words

4.4. FactFact- a statement or piece of information - a statement or piece of information that is true based on available evidence.that is true based on available evidence.

5.5. ObservationObservation-- made with the senses (sight, made with the senses (sight, smell, hearing, etc.) smell, hearing, etc.)

6.6. InferenceInference- a conclusion drawn from an - a conclusion drawn from an observationobservation