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Characteristics of Living Things

Characteristics of Living Things. What is Biology?. The study of living things (organisms) 2. The study of interactions of living things 3. -life -study of. ology. bio. Intro to the Characteristics of Life. 8 Characteristics of Life. Unicellular. Living Things are:

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Characteristics of Living Things

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  1. Characteristics of Living Things

  2. What is Biology? The study of living things (organisms) 2. The study of interactions of living things 3. -life -study of ology bio

  3. Intro to the Characteristics of Life

  4. 8 Characteristics of Life Unicellular • Living Things are: • 1. Made up of Cells • a) _______: Collection of living material enclosed within a barrier • b) Cells are basic unit of life • _______________: made up of one cell • _________________: made up of many cells Cell Multicellular Unicellular Multicellular

  5. Stomach Muscle cell Smooth muscle tissue Digestive system • c) Levels of organization • Cells have an ________________________ • Ex: cells make up tissues, tissues make up organs, and organs make up systems orderly structure Go to Section:

  6. 2. Reproduce: a) produce offspring which resemble parents ______________ Reproduction: has only one parent, same DNA _____________ Reproduction: requires two parents Asexual Asexual Sexual Sexual

  7. 3. Grow and Develop a) __________________: increase in size and shape b) __________________________: mature over time c) living things have a lifespan Growth Development Growth Growth Development

  8. 4. Livings things are based on a universal genetic code a) _____________- DeoxyriboNucleic Acid b) _____________- RiboNucleic Acid c) determines inherited traits from parents DNA RNA

  9. 5. Use/Need Energy • a) Energy comes from food, used to maintain body • ___________________: produce their own food • ___________________: must consume food • __________________: break down dead material for food • b) Chemical reactions of life are called • ________________ Autotroph Heterotroph Decomposer metabolism

  10. 6. Respond to their surroundings a.) they react to a ______________________ (a signal) b.) an action causes a __________________; which is called a ___________________ stimulus reaction response

  11. 7. Maintain a stable internal environment a) _______________________- process by which organisms maintain a relatively stable internal environment EX: sweating, panting, shivering, etc. Homeostasis

  12. 8. Adapt & Evolve a) Any structure, behavior, or internal process that helps an organism survive (usually from previous generations) is called an _______________________________ b) _____________________: Accumulation of adaptations (change) in a population over time; these changes take place over a long period of time involving the entire species adaptation Evolution

  13. Characteristics of Living Things Characteristic Examples Many microorganisms consist of only a single cell. Animals and trees are multicellular. Living things are made up of units called cells. Living things reproduce. Maple trees reproduce sexually. A hydra can reproduce asexually by budding. Living things are based on a universal genetic code. Flies produce flies. Dogs produce dogs. Seeds from maple trees produce maple trees. Living things grow and develop. Flies begin life as eggs, then become maggots, and then become adult flies. Living things obtain and use materials and energy. Plants obtain their energy from sunlight. Animals obtain their energy from the food they eat. Living things respond to their environment. Leaves and stems of plants grow toward light. Living things maintain a stable internal environment. Despite changes in the temperature of the environment, a robin maintains a constant body temperature. Taken as a group, living things change over time. Plants that live in the desert survive because they have become adapted to the conditions of the desert. Go to Section:

  14. So, let’s see what we’ve learned so far…

  15. The following are all examples of the characteristics of life. Identify each one. • Adapt D. genetic code G. Respond to stimulus • Made of cells E. Grow and develop H. Homeostasis • Reproduce F. Use/need energy E, F • You eat a hamburger for lunch. • A baby gains 3 pounds in one week and begins to recognize voices. • A polar bear has white fur to blend in with the snow. • Your start to cry whenever you get a shot at the doctor’s office. • You begin to shiver because it is cold outside. E, G A G H,G

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