Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.
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Everyone has one nostril that is larger than the other.
Examples of energy
Energy of reactant molecules.
Reactions 6–10: The Energy Generation Phase
Carbohydrate Metabolism
The mitochondrion is the center of energy transformation in the cell