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raketka [301]
3 years ago
15

What arw the importance of the atmosphere for man​

Biology
1 answer:
natulia [17]3 years ago
7 0
We would not be able to live without it! It sustains life as we know it!
You might be interested in
9. Which of the following is not a part of the peer review process or its result? A. Ensuring that work meets the standards of t
Tom [10]

Correct answer: C). Making sure that a piece of work is correct and includes bias

The peer review process can be defined as the process of exposing an author's research or ideas or results to be verified by the others who are expert in that field. Its main function is to encourage an author to meet the high standards of discipline in order to ensure that unacceptable results, interpretations or personal views are not published without the expert view.

Any scientific work should not contain any biasness as they may affect the validity of results. Hence, the scientific work does not have any bias.

Hence, the correct answer would be option C.


7 0
3 years ago
Action potential in a motor neuron triggers the release of what neurotransmitter?
vodomira [7]

Answer:

Action potential in a motor neuron triggers the release of acetylcholine (ACh) neurotransmitter.

Explanation:

Acetylcholine: It is a neurotransmitter released by motor neurons which bind to the receptors end plates of the motor. When an action potential travel down the motor neuron's axon, neurotransmitter release occurs resulting in an influx of calcium and altered permeability of the synaptic terminal membrane.

The Ca2+ ions allow synaptic vesicles to move and bind with the presynaptic membrane which is present on the neuron and released neurotransmitter from the vesicles into the synaptic cleft. Once it's released ACh diffusion occurs across the synaptic cleft to the motor end plate, and binds with ACh receptor. As the neurotransmitter ACh binds, these ions channel open and sodium ions cross the membrane into the muscle cells.

In this phase reduction of voltage inside and outside the cell occurs, which is known as depolarization. When ACh binds to the motor end plate this depolarization is known as end plate potential. Then depolarization spread with the sarcolemma and creating an action potential. This action potential moves the entire cell and creating a wave of depolarization.

5 0
3 years ago
Absorbe nutrientes por medio de micro vellosidades que recubren y aumentan la superficie de absorción
Likurg_2 [28]

Sobre la pregunta:

Cucigrama. Pregunta 1 vertical. Absorbe nutrientes por medio de micro vellosidades que recubren y aumentan la superficie de absorción

Answer:

Intestino delgado

Explanation:

El intestino delgado es el organi mas largo del tubo digestivo, pudiendo medir 7 metros de longitud y 3 cm de diametro. Se caracteriza por estar sumamente plegado sobre si mismo. La primera porcion, llamada duodeno, recibe secresiones de glándulas biliar y pancreática, y las mezcla con enzimas digestivas. Esta mezcla se encarga de degradar la comida y transformarla en sustancias solubles, como amino ácidos.

Es en el intestino delgado donde ocurre la absorción de nutrientes.  Las paredes intestinales estas cubiertas por microvellosidades que aumentan la superficie de absorción.  

Las microvellosidades son células que componene el epitelio columnar, y que extienden proyecciones hacia el lumen del organo.  

 

4 0
3 years ago
Which area of Earth is most similar to the sun's convection zone?
user100 [1]
The mantle i think sorry if i am wrong
6 0
3 years ago
WILL MARK YOU BRAINLIEST!
Andreyy89
Which one all of the or what
7 0
3 years ago
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