VARIETY OF LIFELesson 2

LIVING THINGS WHAT DO LIVING THINGS SHARE IN COMMON?

LIVING THINGS CHARACTERISTICS OF LIVING THINGS

Life Process ExplanationMovement All living things move in some way. This may be obvious, such as

animals that are able to walk, or less obvious, such as plants that have parts that move to track the movement of the sun.

Respiration Respiration is a chemical reaction that happens within cells to release energy from food.

Sensitivity The ability to detect changes in the surrounding environment.Growth All living things grow and develop.Reproduction The ability to reproduce and pass genetic information onto their

offspring. Excretion Getting rid of waste.Nutrition The intake and use of nutrients. This occurs in very different ways in

different kinds of living things.

CLASSIFICATION

 Classification involves sorting and grouping togetherthings that are similar and separating them from thingsthat are different.

  The similarities and differences are based on theircharacteristics (properties).

  Scientists use a classification system to categorizeliving things. This makes it easier for them to study andunderstand their behaviors.

TAXONOMY

  The classification of living things is known as taxonomy.  The classification system consists of three domains:  Eukarya (includes plants, animals, protists, and fungi)  Bacteria  Archeae

EUKARYA DOMAIN

• Divided into phylumKINGDOM

• Divided into classesPHYLUM

• Divided into ordersCLASS

• Divided into familiesORDER

• Divided into generaFAMILY

• Divided into speciesGENUS

SPECIES

ACTIVITYCLASSIFICATION TREE DIAGRAM

Paper Clips

Big

Plastic Metal

Small

Plastic Metal

ACTIVITYSORTING PLANTS