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zmey [24]
4 years ago
11

The classical laboratory experiments performed by urey and miller to explore the necessary conditions for the production of orga

nic molecules (the building blocks of living things) in the solar system involved the passing of electrical discharges through what mixure of gases
Biology
1 answer:
horrorfan [7]4 years ago
7 0

Answer;

-Ammonia, methane, water vapor, and hydrogen

The mixture of gases involved include; ammonia, methane, water vapor, and hydrogen.

Explanation;

The chemical experiment simulated the conditions thought to be present on the early Earth at the time, and tested the chemical origin of life under those conditions.The mixture of gases that was involved include; ammonia, methane, water vapor, and hydrogen.

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A mammal is any animal that has hair,three middle ear bones,and mammary glands.Mammals give live birth as well.
5 0
3 years ago
• ¿Qué factores son clave para el manejo correcto del microscopio compuesto u óptico cuando se observa una muestra?
leonid [27]

Answer:

1-Tener en cuenta el tamaño del objeto a observar para utilizar la lente con el aumento correcto (es decir, 10 X, 40 X o 100 X)

2-Utilizar aceite de inmersión para ver objetos en 100 X

Explanation:

El microscopio óptico posee lentes (ocular y objetivo) los cuales permiten ampliar la imagen del objeto observado. El microscopio simple y el compuesto representan dos tipos de microscopios ópticos. El microscopio compuesto es aquel que utiliza más de una lente para aumentar la imagen observada, mientras que el microscopio simple usa una sola lente (la cual se denomina lupa). El microscopio óptico puede utilizar un aceite de inmersión que permite aumentar la resolución de la imagen a través de la inmersión de la lente objetivo. Es importante señalar que durante el enfocado de la muestra se debe tener sumo cuidado de no acercar demasiado la lente a la superficie del cubreobjeto, ya que esta puede dañarse.

5 0
3 years ago
Embryos of different species look very similar, which shows that the organisms share a BLANK ancestor.
Zarrin [17]

Answer:

Ancestor

Explanation:

8 0
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How does the plasma membrane contribute to the structure and function of the cell?
Ivenika [448]

Answer:

it keeps the organelles in the cell and gives hydration

Explanation:

3 0
3 years ago
What neurotransmitter is released by the axon of a sympathetic preganglionic neuron to communicate with the sympathetic postgang
Feliz [49]

Answer:

Explanation:

Cholinergic neurons release acetylcholine as a neurotransmitter. The cell bodies of preganglionic neurons of sympathetic division are present in the lateral horns of 12 thoracic and first two lumbar segments of the spinal cord. These are the cholinergic neurons and their axons release the acetylcholine as neurotransmitter into the synaptic cleft. The acetylcholine released by preganglionic sympathetic neurons binds to the cholinergic receptors present in the membranes of postganglionic neurons of the sympathetic division.

6 0
3 years ago
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