The carbon rod in a standard D-cell serves as a conductor to dry-cell.
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Answer:
c. Protons, electrons
Explanation:
The number of these electrons in a neutral atom is equivalent to the number of protons.
Since protons have positive charge, they balanace the negative charge of electrons. Electrons have same level of charge per particle as a proton.
Neutrons posses no charge, so in a "neutral atom" the number of proton is equal to that of electrons, othermeans it will not be neutral.
When a electron is removed by natural or artificaial means , an ion results which is an electrically charged particle. It also happens some atoms take additonal electrons once they were previously neutral. They can also lose electrons and become positively charged,
Answer:
THE CELL RECEPTOR DETERMINES WHICH CELL RESPOND TO AN HORMONE.
Explanation:
In the endocrine system, the hormones are usually released into the blood stream from where they traveled to their target organs. Even though the hormones meet a lot of cells on their way, they do not bind with just any cell. Hormones bind specifically to cells that have receptors that is meant specifically for the hormone. The cell receptor enables the binding together of the hormone and the cell membrane or the cell surface. After the binding, the hormone then elicit the needed response in the cell.
DNA ..............................................................