The atomic number of a neutral atom is equal to the number of protons and the number of electrons of the atom. The atomic weight meanwhile is equal to the sum of the number of protons and number of neutrons. An element has a unique atomic number. Hence the answer shoulf be B. number of protons
Photosynthesis
it is how plants make their material to stay alive
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Answer:
Condensation
Explanation:
A single molecule of protein can have hundreds of amino acid units which are joined together by the process of condensation. The process involves combination of two amino acids to form a dipeptide molecule. The bond between the two amino acids is called a peptide bond. Continued condensation leads to the addition of more amino acids to a protein chain. A long chain known as a polypeptide results.
B. 2 there are 2 perpendicular rays when a polarized white light is sent through synthetic fiber.
Answer:
Fossils are the preserved remains of plants and animals whose bodies were buried in sediments, such as sand and mud, under ancient seas, lakes and rivers. .