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Living things and Cell Theory. Living things grow in size, reproduce, and are able to repair themselves. Living things require energy. Living things respond to changes in their environment. Living things have a lifespan. Living things produce waste. The cell ….
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Living things grow in size, reproduce, and are able to repair themselves.
The cell … The cell is the basic structural and functional unit of life.
Identify the characteristic… • Flowers eventually die.
Plants obtain energy from the sun. • A zebra runs away from a lioness. • A broken heals over time. • Plant roots grow toward moist soil.
Cell Theory • All living things are composed of one or more cells. • The cell is the basic unit of life. • All cells come from pre-existing cells.