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Neuropsychology is the study of brain and behavior</span>
The correct answer is a - silicon dioxide.
Diatoms are single celled algae. They have a silica - based cell wall called a frustule, which gives each diatom a particular shape.
Diatoms exist as separate single cells although some may be found in groups or colonies. The ones found in colonies create very pretty forms: leaf shaped, oval , star and even like a period.
Outer shells of diatoms are quite valuable. They are used in industry in the manufacture of toothpaste to give it grit.
La biología (del griego «βιος» bios, vida, y «λóγος» logos, razonamiento, estudio, ciencia) es una de las ciencias naturales que tiene como objeto de estudio a los seres vivos y, más específicamente, su origen, su evolución y sus propiedades: génesis, nutrición, morfogénesis, reproducción, patogenia, etc.
Answer:
Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth. Carbon moves from plants to animals. Through food chains, the carbon that is in plants moves to the animals that eat them.
Explanation:
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