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How Seeds Germinate
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This is how a plant comes out of a seed.
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Science
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Plant (Botany)
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How Plants Reproduce
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How Seeds Travel
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Plants are rooted in one spot, but seeds are great travellers. Over the millennia plants have found many ways to travel as seeds. They have found ways to make use of natural forces, such as water and wind. They have also learned to travel with animals and birds.
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Plant (Botany)
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How Plants Reproduce
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The Two Seed Types of Flowering Plants
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The flowering plants, also called angiosperms, can be divided into two groups. These groups have differently structured seeds. The groups are called monocotyledons and diocotyledons.
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Plant (Botany)
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How Plants Reproduce
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Photosynthesis
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Photosynthesis converts light energy into the chemical energy of sugars and other organic compounds. This process consists of a series of chemical reactions that require carbon dioxide (CO2) and water (H2O) and store chemical energy in the form of sugar.
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Science
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Biology
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Plant (Botany)
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Glossary
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A collection of biologically terms.
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Science
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Biology
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Plant (Botany)
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Human Skeleton
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The human skeleton is made of individual or joined bones, supported and supplemented by a structure of ligaments, tendons, muscles, cartilage and other organs.
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Science
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Human (Anatomy)
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The Skeleton
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List of Bones of the Human Skeleton
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A typical adult human skeleton consists of the following 206 bones. (Numbers in bold refer to the diagram at right.)
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Science
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Human (Anatomy)
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The Skeleton
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The Skull
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In humans, the adult skull is normally made up of 28 bones. Except for the mandible, all of the bones of the skull are joined together by sutures, rigid articulations permitting very little movement.
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Science
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Human (Anatomy)
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The Skeleton
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Body/Torso
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Science
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Biology
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Human (Anatomy)
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Respiratory System
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The primary function of the respiratory system is to supply the blood with oxygen in order for the blood to deliver oxygen to all parts of the body. The respiratory system does this through breathing. When we breathe, we inhale oxygen and exhale carbon dioxide. This exchange of gases is the respiratory system's means of getting oxygen to the blood.
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Science
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Biology
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Human (Anatomy)
