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Living Things Are Different From Nonliving Things (Any Individual form of…
Living Things Are Different From Nonliving Things
Any Individual form of life that uses energy to carry out its activities is an organism.
All organisms get water and material from the environment.
Living things have these characteristics: organization, ability to develop and grow, the ability to respond to the environment, ability to reproduce.
All Living Things Are Made Of Cells
The cell is the smallest uni of a living thing.
Some organisms are made of a single cell.
Multi cellular organisms have different types of cell that make up their body parts and help the organisms meet their needs.
The Microscope Led To The Discovery Of Cells
Most Cells are Microscopic, too small to see without the aid of a microscope.
Using lenses that could magnify an object almost 300 X he observed tiny unicellular organisms like those shown on page 11.
It took the invention of this relatively simple tool to lead to the discovery of cells.
Cells Come From Other Cells
The studies of Hooke and Leeuwenhoek made people ask if all living things have cells.
All living matter was made of cells.
One living cell divides into two living cells.
The Cell Theory Is Important To The Study Of Biology
A scientific theory is a widely accepted explanation of things observed in nature.
A theory must be supported by evidence, including experimental evidence and observations.
A proves it values when it explains new discoveries and observations.