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In biology, cell theory is a scientific theory which describes the properties of cells. These cells are the basic unit of structure in all organisms and also the basic unit of reproduction.

Robert Hooke. 1665 -English scientist that cut a thin slice of cork and looked at it under his microscope. ...

Anton Van Leewenhoek. ...

Matthias Schleiden. ...

Theodor Schwann. ...

Rudolph Virchow. ...

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Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes.

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Traditionally, textbooks from the United States used a system of six kingdoms (Animal, Plants, Fungi, Protists, Archaea bacteria.

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There are several differences between a physical and chemical change in matter or substances. A physical change in a substance doesn't change what the substance is. In a chemical change where there is a chemical reaction, a new substance is formed and energy is either given off or absorbed.

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Heat can be transferred from one place to another by three methods: conduction in solids, convection of fluids (liquids or gases), and radiation through anything that will allow radiation to pass. The method used to transfer heat is usually the one that is the most efficient.

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Primary succession begins in barren areas, such as the bare rock exposed by a retreating glacier. The first inhabitants are lichens or plants that can grown on bare rock. ... These grasses further modify the soil, which is then colonized by other types of plants

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proton electron neutron