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EastWind [94]
2 years ago
8

Some psychoactive drugs work as _______, meaning that they artificially stimulate receptors in a neurotransmitter system. Others

work as _______, meaning that they block activity at particular receptors.
Social Studies
1 answer:
MAXImum [283]2 years ago
3 0

Answer:

1.Agonists

2.Antagonists

Explanation:

An agonist drug attaches to both the receptor which induces the reaction inside the cell. An antagonist can attach to the very same receptor, but will not generate a response, rather it stops the receptor from a natural agonist.

Antagonism can be successful and offset by elevated agonist levels. Unmanageable antagonists are firmly bound to a transmitter and therefore are not removed by an external agonist.

You might be interested in
identify three surface process that are part of the rock cycle. Explain the role of each process in the cycle.
Galina-37 [17]

Answer:

PLEASE MARK ME BRAINLIEST!!!!!!!

Explanation:

There are three main types of rocks: sedimentary, igneous, and metamorphic. Each of these rocks are formed by physical changes—such as melting, cooling, eroding, compacting, or deforming—that are part of the rock cycle.

Sedimentary Rocks

Sedimentary rocks are formed from pieces of other existing rock or organic material. There are three different types of sedimentary rocks: clastic, organic (biological), and chemical. Clastic sedimentary rocks, like sandstone, form from clasts, or pieces of other rock. Organic sedimentary rocks, like coal, form from hard, biological materials like plants, shells, and bones that are compressed into rock.

The formation of clastic and organic rocks begins with the weathering, or breaking down, of the exposed rock into small fragments. Through the process of erosion, these fragments are removed from their source and transported by wind, water, ice, or biological activity to a new location. Once the sediment settles somewhere, and enough of it collects, the lowest layers become compacted so tightly that they form solid rock.

Chemical sedimentary rocks, like limestone, halite, and flint, form from chemical precipitation. A chemical precipitate is a chemical compound—for instance, calcium carbonate, salt, and silica—that forms when the solution it is dissolved in, usually water, evaporates and leaves the compound behind. This occurs as water travels through Earth’s crust, weathering the rock and dissolving some of its minerals, transporting it elsewhere. These dissolved minerals are precipitated when the water evaporates.

Metamorphic Rocks

Metamorphic rocks are rocks that have been changed from their original form by immense heat or pressure. Metamorphic rocks have two classes: foliated and nonfoliated. When a rock with flat or elongated minerals is put under immense pressure, the minerals line up in layers, creating foliation. Foliation is the aligning of elongated or platy minerals, like hornblende or mica, perpendicular to the direction of pressure that is applied. An example of this transformation can be seen with granite, an igneous rock. Granite contains long and platy minerals that are not initially aligned, but when enough pressure is added, those minerals shift to all point in the same direction while getting squeezed into flat sheets. When granite undergoes this process, like at a tectonic plate boundary, it turns into gneiss (pronounced “nice”).

Nonfoliated rocks are formed the same way, but they do not contain the minerals that tend to line up under pressure and thus do not have the layered appearance of foliated rocks. Sedimentary rocks like bituminous coal, limestone, and sandstone, given enough heat and pressure, can turn into nonfoliated metamorphic rocks like anthracite coal, marble, and quartzite. Nonfoliated rocks can also form by metamorphism, which happens when magma comes in contact with the surrounding rock.

Igneous Rocks

Igneous rocks (derived from the Latin word for fire) are formed when molten hot material cools and solidifies. Igneous rocks can also be made a couple of different ways. When they are formed inside of the earth, they are called intrusive, or plutonic, igneous rocks. If they are formed outside or on top of Earth’s crust, they are called extrusive, or volcanic, igneous rocks.

Granite and diorite are examples of common intrusive rocks. They have a coarse texture with large mineral grains, indicating that they spent thousands or millions of years cooling down inside the earth, a time course that allowed large mineral crystals to grow.

Alternatively, rocks like basalt and obsidian have very small grains and a relatively fine texture. This happens because when magma erupts into lava, it cools more quickly than it would if it stayed inside the earth, giving crystals less time to form. Obsidian cools into volcanic glass so quickly when ejected that the grains are impossible to see with the naked eye.

Extrusive igneous rocks can also have a vesicular, or “holey” texture. This happens when the ejected magma still has gases inside of it so when it cools, the gas bubbles are trapped and end up giving the rock a bubbly texture. An example of this would be pumice.

 

5 0
2 years ago
Please HELPPPPPPPPPPPPPPPPPPPPPPPP MEEEEEEEEEEEEEEE!!!!!!!!!!!!!!!!!!!!!!! Does the information in the article ""Ranger killed d
jek_recluse [69]

Answer:

The information provided in the article 'Ranger killed during rescue of climbers on Mount Rainier,' supports the argument found in the interview 'Helicopter Rescues Increasing on Everest.'

Explanation:

"Ranger killed during rescue of climbers on Mount Rainier" is an article published in The Seattle Times on June 21, 2012. The article provides information about Nick Hall, a climbing ranger, who lost his life while rescuing a climber on Mount Rainier. The article informs about the life-risking jobs of the climbing ranger.

In the interview, "Helicopter Rescues Increasing on Everest," Nick Heil talks about the risk involved in rescuing. Nick Heil shares one incident in which the helicopter crashed while rescuing one climber.

Therefore, both the text talks about the risk involved in the rescue operation to such high altitudes.

Textual evidence:

<em>"“We sincerely hope the loss of our son will draw appropriate  attention to the hazards and safety requirements and  commitment to be involved in the profession and sport he so  loved,..." </em>(from "Ranger killed during rescue of climbers on Mount Rainier")

<em>"The accident that I  describe in the beginning of the story, is on a peak called Ama  Dablam. And the helicopter flies up to about 19,000 feet and,  you know, the air at this altitude is very thin. So it requires a  helicopter to utilize more power to stay aloft up there. So, you  know, you can imagine, if you add weight, it’s going to lose lift.  So in this case, they could only bring one climber at a time.  And they got one climber off, and they crashed attempting to  rescue the second man."</em> (from "Helicopter Rescues Increasing on Everest"

<em />

4 0
2 years ago
Unlike many recent interpretations of Beethoven’s piano sonatas, the recitalist’s performance was a delightfully free and intros
alexgriva [62]

The correct answer is controlled

Explanation: Unlike many recent interpretations of Beethoven’s piano sonatas, the recitalist’s performance was a delightfully free and introspective one; nevertheless, it was also, seemingly paradoxically, quite <u>controlled.</u>

6 0
3 years ago
A.The James-Lange theory of emotion states that a cognitive experiences of emotion determine the extent of our physiological aro
jeka94

Answer:

c. the expression of emotion reduces our level of physiological arousal.

Explanation:

Hello! The theory suggests that emotions occur as a result of physiological reactions to events. In addition, this emotional reaction is dependent on the way we interpret those physical reactions. This means that for example we do not cry because we are sad, we are sad because we cry.

Thanks for your question!

8 0
2 years ago
What does the truth in lending act require credit card issuers to provide?
prohojiy [21]

Answer:

1.the anwer is letter B

6 0
3 years ago
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