<span>The bite of an infected ticks. The disease, caused by bacteria of the borrelia type, is transmitted to humans through the bite of infected ticks of the Ixodes genus. Two tick species the black legged tick and the western blacklegged tick are known to transmit the bacterium. Most humans are infected from the bites of immature ticks (nymphs) because adult with Borrelia burgdorferi bacterium are larger and more likely to be discovered.</span>
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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Though most prokaryotes have both a cell membrane and a cell wall, there are exceptions such as Mycoplasma (bacteria) and Thermoplasma ( archaea ) which only possess the cell membrane layer. The envelope gives rigidity to the cell and separates the interior of the cell from its environment, serving as a protective filter. Hope this helped!
