Answer & explanation:
The octet rule states that atoms must have eight electrons in their valence shell (the last electron distribution layer of an atom, or the outer energy level).
For atoms to have the full valence shell, chemical bonds must be made to donate, receive, or share electrons. Normally, atoms tend to share electrons until they acquire stability (complete valence shell).
Noblegases are the elements of the periodic table that have eight electrons in the valence shell, with Helium (He) the only exception, which has two electrons.
When an element reaches its stability, it means that it will not bind to other atoms, because it no longer has a tendency to gain or lose electrons, that is why we find no compounds formed by noble gases.
Answer: The given statement is False.
Gene ( segment of DNA that corresponds to particular protein) expression is a process by which a protein product is produced through transcription and translation of gene.
Gene expression is highly regulated process, which means that genes are only turned on whenever their protein product is required by the body ( for instance, insulin gene is turned on only when blood glucose level is high in the body).
Moreover, particular genes are activated in specific cells and other genes are turned off in order to make cell function in a specific way. Also, there are non protein coding genes in the cells that do not code for any protein.
Thus, given statement is False.
Coelomates are animals which body cavity (coelom) is filled with fluid. Fluid surrounds organs, protects them and allows their free movement and growth. All vertebrates and some invertebrates, such as mollusks, annelids, and arthropods, are coelomates.
Answer:
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