Answer:
Apoptosis (programed cell death)
Explanation:
Apoptosis is a type of controlled cell death. It happens throughout development when cells have to be removed. It also gets rid of diseased cells, such as those that are potentially cancerous, or those infected with a pathogen, for example.
Answer:
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Explanation:
Each molecule has a characteristic size and shape that determines its function in the living cell. The shapes of molecules are determined by the positions of the atoms' orbitals. When an atom forms covalent bonds, the orbitals in its valence shell are rearranged.
Answer:
Because of the Earths rotation
Explanation:
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Endocrine glands make chemicals called hormones and pass them straight into the bloodstream. Hormones can be thought of as chemical messages. From the blood stream, the hormones communicate with the body by heading towards their target cell to bring about a particular change or effect to that cell.Mar 30, 2014