Adenosine Triphosphate. Adenosine triphosphate, or ATP, is the primary source of energy in both plant and animal cells. ATP is a nucleotide that is the basis for all cell reactions, including the reactionary process of converting food molecules into energy.
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Cells are the basic unit of life and they are the 1st level of organization. The heart is the 3rd level. They are separated by 1 level, tissues.
Heroin is an opioid drug composed of morphine, a natural alkaloid derived from extracts from the seeds of the opium poppy. It is for that reason that heroin is considered a semi-synthetic opioid.
- HEROIN causes euphoria followed by agitation, and is the major opioid drug of abuse.
- Heroin is a drug that causes addiction, a form of substance use disorder.
- This drug (heroin) is capable of entering the brain quickly and producing immediate effects.
- The feeling of euphoria caused by heroin is followed by a period of sedation because heroin (as well other opioids) sedates the brain.
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Biologists Schleiden and Schwann would state that all cells come from other cells, the smallest living unit is the cell and all living things are made up of a cell or cells. The correct option among all the options that are given in the question is the last option or the fourth option. I hope the answer has helped you.