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aleksandrvk [35]
3 years ago
5

How do gases move in andout

Biology
1 answer:
deff fn [24]3 years ago
6 0

Answer:

Gas exchange during respiration occurs primarily through diffusion. Gas molecules move from a region of high concentration to a region of low concentration. Blood that is low in oxygen concentration and high in carbon dioxide concentration undergoes gas exchange with air in the lungs.

Explanation:

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Describe three characteristics of cell membranes
Phoenix [80]

Answer:

Explanation:

The cell membrane, also called the plasma membrane, has the following characteristics:-

It is present as the outermost layer in animal cells and lies below the cell wall in plant cells.

The cell membrane surrounds the cytoplasm of living cells, physically separating the intracellular components from the extracellular environment.

The cell membrane is semi-permeable, ie, it allows some substances to pass through it and does not allow others.

It is thin, flexible and a living membrane, which consists of a lipid bilayer with embedded proteins/

The cell membrane has large content of proteins, typically around 50% of membrane volume. These proteins are important for cell because they are responsible for various biological activities.

4 0
4 years ago
Tell how you should respond if you come upon the scene of a vehicular accident
ddd [48]
Incorporating basic life support, the first thing one should do is survey the scene. Look for any obstacles that will make the response difficult such as shattered glass, fire, etc. Second, call emergency hotline (usually it's 911 but it may differ from other countries). If you are a certified basic life support provider, then continue with the next steps. Next step would be checking the patient's airway, breathing, and circulation (ABC) by checking the if there is blocking the airway, or if the patient can breathe spontaneously, as well as the pulse. Next step would be assess if the patient as a cervical fracture as this should be handled carefully. If the patient is not breathing or has no/decreased pulse then proceed with doing CPR until help arrives. 
4 0
3 years ago
4. According to Newton's Law of Gravity, which of these changes would cause the gravitational force between two objects to incre
Katen [24]

Answer:

If the mass of one of the objects is doubled, then the force of gravity between them is doubled. Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces.

Explanation:

6 0
3 years ago
Read 2 more answers
In figure 1-2 what is the distance from point B to point C
gayaneshka [121]

Answer:

i donot no bot

Explanation:

hdhdjrkrhrjtutururufurif

4 0
3 years ago
Question 3 (Multiple Choice Worth 3 points)
Nezavi [6.7K]

Answer:

Gradually cool a gas and record its change in state.

Explanation:

The experiment is directed towards the removal of thermal energy from a system, so "gradually cool a gas and record its change in state" is the best experiment to use.

Hope it helps.

8 0
3 years ago
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