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What makes something alive?. Describe the features common to all life?. What makes something alive?. Reproduces Grows Develops Uses Energy –food Responds to environment Adapts Made of cells Moves. Reproduction. Produce next generation of offspring Cells Mitosis Meiosis Individuals
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What makes something alive? Describe the features common to all life?
What makes something alive? Reproduces Grows Develops Uses Energy –food Responds to environment Adapts Made of cells Moves
Reproduction • Produce next generation of offspring Cells • Mitosis • Meiosis Individuals • Asexual – one parent • Sexual – two parent
Growth • Get bigger • Grow larger
Development • All the changes that occur as a living thing grows • Simple form to complex form • Changes size and shape • New structures
Use Energy • Energy is the ability to do work • Energy comes from food • Cellular respiration is the process used to breakdown foods and release energy
Use Energy • Producers make food • Plants, bacteria, some protists • Consumers eat or absorb food • Animals, bacteria, protists, fungi
Respond to Stimuli • Stimuli:Something external or internal that cause a response • Cold: shiver • Hot: sweat • Pressure: pleasure/pain • Sunlight: plant growth • Fear: adrenaline
Adaptations • Traits that help an organism survive • When the ecosystem changes over time, so do the traits that help the organism survive • Help an organism get food, shelter, a mate • Territory, swim, fly
Made of Cells • Basic unit of all life • One celled organism • Bacteria, protists • Many celled organism • Fungi, plants, animals
Movement • All life has some type of movement • Animals move • Plants move • Fungi move • Bacteria move
Plant Adaptations • Thorns • Waxy coating (cuticle) on the leaves provides water-proofing • Cactus have stems that store water
Colors • The pepper moth became darker during the industrial revolution • a fine layer of coal dust covered tree trunks where the moth rested during the day • the whitish color against the darker background allow birds to more readily find the moth • The pepper moth survived
Morphology • Strawberries have underground stems which readily break so that a new plant can result from just a portion of the parent plant • Leaves of desert plants are often hairy (to reduce water loss) whereas those in the tropics are mostly smooth; l • fruits in temperate regions tend to be hard (nuts, acorns) whereas those of the tropics are often fleshy (banana) • Flowers tend to be large and solitary in tropical plants; smaller and more numerous in temperate regions