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Ilia_Sergeevich [38]
2 years ago
9

An alpha-2-agonist that provides excellent sedation, muscle relaxation, and analgesia is

Biology
1 answer:
blondinia [14]2 years ago
7 0
Muscle relaxers physical therapy
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Las paredes externas de una casa o un automóvil brindan una barrera fuerte e inflexible que protege a sus habitantes humanos de un mundo externo rudo e impredecible. Podría esperarse que el límite externo de una célula viva estuviera construido de una barrera igual de fuerte e impenetrable porque también debe proteger su delicado contenido interno ante un ambiente no vivo y a menudo inhospitalario. Sin embargo, las células están separadas del mundo externo por una estructura delgada y frágil llamada membrana plasmática que sólo mide 5 a 10 nm de espesor. Se requerirían casi 5 000 membranas plasmáticas apiladas una sobre otra para igualar el grosor de una sola página de este libro.

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2 years ago
Three species of frogs—Lithobates pipiens, Lithobates clamitans, and Lithobates sylvatica—all mate in the same ponds, but they p
Sladkaya [172]

Answer:

"This is a specific example of a reproductive barrier, called behavioral isolation or sexual isolation".

Explanation:

Reproductive barriers are <em>isolation mechanisms</em> that prevent mating between two or more species. The <u><em>prezygotic mechanism</em></u> avoids fertilization between individuals of different species, and the <u><em>postzygotic mechanism</em></u> avoids the zygote to develop and reach the adult stage.

There are different types of reproductive barriers, one of them is <em>behavioral isolation</em>, also known as <em>ethological isolation</em> or <em>sexual isolation</em>. This is a <em>prezygotic barrier</em> that refers to the fact that <em>many species occupy the same area</em> but they are <em>not sexually attracted</em> to each other and might even be rejected <em>because of behavioral factors</em>, and this is why they do not get to mate. This mechanism includes courtship patterns or mating rituals, and specific chemical signals that allow the recognition between individuals of the same species. A typical <em>example</em> is the <em>recognition songs</em> of some species like frogs, birds, insects, and etcetera.

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Describe the process and purpose of cell fractionation
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3 years ago
How does the polarity of water explain all of its properties?
zhenek [66]

Answer:

It allows it to disolve easily

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It is a chemical change

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3 years ago
What is the role of cytoplasm in a living cell?
Law Incorporation [45]
Cytoplasm is a jello like substance that hold all the cells organelles in place|

Imaging a fruit cup with jello in it,the fruits in the cup represent organelles and the jello in the cup represents cytoplasm.
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