It disconnects the brain's dopamine system.
Further explanation
Cocaine
Cocaine is a capably addictive stimulant medication. For a great many years, individuals in South America have bitten and ingested coca leaves which is source of cocaine, for their stimulant effects. In the mid-1900s, refined cocaine was the primary dynamic fixing in numerous tonics and elixirs created to treat a wide assortment of diseases and was even a fixing in the early plans of Coca-Cola. Prior to the advancement of manufactured specialists utilized cocaine for the relief of pain. However, examine has since demonstrated that cocaine is an effectively addictive substance that can change cerebrum structure and capacity whenever utilized over and over.
Functions of cocaine
It shows very quickly effect after a solitary portion and vanish inside a couple of minutes to 60 minutes. Limited quantities of cocaine for the most part make the person feel euphoric, enthusiastic, loquacious, rationally caution, and easily affected to sight, sound, and contact. The medication can likewise briefly diminish the requirement for sustenance and sleep. Some clients find that cocaine encourages them perform straightforward physical and scholarly assignments all the more rapidly, in spite of the fact that others experience the contrary impact.
Effect of cocaine on dopamine
Cocaine particles block the dopamine transporters which shut down the neuron's capacity to take-up the additional dopamine inside the synaptic parted. This outcomes in expanded degrees of the synapse dopamine present in the extracellular spaces among these neurons.
Answer details
Subject: Biology
Level: College
Key words
- Cocaine
- Functions of cocaine
- Effect of cocaine on dopamine
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Helminths are parasitic worms.
Parasitic Worms- Large macro-parasites called helminths, or parasitic worms, are typically visible as adults to the unaided eye. Many are soil-transmitted intestinal worms that infect the gastrointestinal system. Schistosomes and other parasitic worms live in blood vessels.
Gastrointestinal system- The alimentary canal, often known as the digestive system, is the body's mechanism for ingesting food and expelling solid waste. The mouth, throat, esophagus, stomach, small intestine, large intestine, and anus are all parts of the gastrointestinal system.
Helminths- Invertebrates known as helminths have elongated, flat, or circular bodies. Flukes and tapeworms are considered flatworms, often known as platyhelminths (platy is a Greek word that means "flat").
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Answer:
Explanation:
https://www.treehugger.com/natural-sciences/what-selective-breeding.html
https://en.wikipedia.org/wiki/Selective_breeding
https://www.yourgenome.org/facts/what-is-selective-breeding
http://www2.nau.edu/~gaud/bio301/content/selbrd.htm
https://www.britannica.com/science/selective-breeding
Answer:
Option 2: Spiracles.
Explanation:
Cartilaginous fish (also called Chrondricytes) have a skeleton of cartilage, instead of bone. There are two subclasses - Elasmobranchii and Holocephali. Sharks, rays, skates and sawfish are elasmobranchs while chimeras are holocephali.
Here’s a list of features of cartilaginous fish in comparison to bony fish:
1. Cartilage skeleton: unlike bony fish that have a skeleton made of bones (just like other terrestrial vertebrates), the skeleton of cartilaginous fish is made of cartilage.
2. Spiracles: this is a modified gill of sorts, it aids with respiration and is found slightly behind each eye. It leads directly to the mouth. Most cartilaginous fish possess this organ (exceptions are present, such as hammerhead sharks). Bony fish do not possess spiracles.
3. Ampullae of Lorenzini: absent in bony fish, these organs are electroreceptors that form a network of pores filled with a form of jelly that can transmit electrical signals. It allows the cartilaginous fish to sense electric fields in the water (such as the movements of a fish struggling), magnetic fields and temperature. Some bony fish such as sturgeon and lungfish may possess these organs, however research is still ongoing.
4. Claspers: male cartilaginous fish possess an organ known as claspers at their pelvic fin. This is used during reproduction to transfer the sperm into the female for fertilisation. As such, internal fertilisation occurs in cartilagonous fish. Bony fish do not possess this organ, and external fertilisation occurs.
There are many other characteristics that differentiate cartilaginous fish from bony fish. They're an extremely fascinating group of animals that unfortunately, is decreasing in numbers. Very little is known about many of these animals, so it is important that we do our best to conserve the sharks, rays, sawfish and chimeras before we lose them forever.
Hmm this is a rough explanations but because to be sure cells are made properly and not misfunctioning or going Rouge.
Cancer cells is an example of this, a cell goes rouge and starts doing it's function on it's own but outside of it's brother cells function slightly different turning into a growth or etc. The body thinks it is normal during the check body it's composed of the dna that passes this check.
viruses and other things don't pass this check and things like white blood cella come shut it down.
that's why doctors poison the area they find the cancer. to send white blood cells there to shut the area down not passing the check.
