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kari74 [83]
3 years ago
14

Why is water molecule called polar

Biology
1 answer:
7nadin3 [17]3 years ago
3 0

Answer:

Since oxygen has a higher electronegativity than hydrogen, the electrons of the molecule tend to group closer to the oxygen than to the hydrogen atoms. as well as , water is said to be a "polar" molecule, which means that there is an uneven distribution of electron density.

thats what i found sorry if its confusing

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Which of the following is not a sign of possible pest infestation?
Brrunno [24]

The right answer is smelly garbage.

Infestation is the penetration into the body of a parasite whose nature is not microbial.

smelly garbage is not synonymous of infestation, because the olfactory system only detected smelly metabolites of these microorganisms. This does not necessarily mean that the microorganism has managed to penetrate the body.

By cons other proposals are signs and tools for infestation (torn packaging with food leaking out, dead insect bodysuits, feathers, and fur).

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3 years ago
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When is it appropriate to use images in presentations?
Molodets [167]

Answer:

to illustrate key points simply.

Explanation:

You first use images to back up your evidence, then secondly use them to add aesthetic value to your slide

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2 years ago
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2. Ms. L's respiratory function was evaluated by quantifying different lung volumes and capaci-
Sphinxa [80]

Based on respiratory function tests, the correct options are:

  • spirometer.
  • vital capacity
  • residual volume.

<h3>What is a respiratory function tests?</h3>

A respiratory function test is a test done to evaluate the ability of the lungs to take in air and remove carbon dioxide

The machine used for this test is called a spirometer.

Therefore;

  • Ms. L's respiratory function was evaluate using a machine called a spirometer.
  • The amount of air that can be expelled by maximum ex-halation after maximum inhalation is termed the vital capacity
  • An increase in the amount of air remaining in her lungs after a normal expiration is called the residual volume.

Learn more about respiratory function test at: brainly.com/question/18117969

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3 0
2 years ago
How long does it take for a person's cells to all die after clinical death?
Blababa [14]
Clinical death is the medical term for cessation of blood circulation and breathing, the two necessary criteria to sustain human and many other organisms' lives.

It occurs when the heart stops beating in a regular rhythm, a condition called cardiac arrest.


Brain injuries start to accumulate almost immediately after Clinical Death.

Full recovery of the brain after more than 3 minutes of clinical death at normal body temperature is rare.

Usually brain damage or later brain death results after longer intervals of clinical death even if the heart is restarted and blood circulation is successfully restored.
Although loss of function is almost immediate, there is no specific duration of clinical death at which the non-functioning brain clearly dies.






The most vulnerable cells in the brain, CA1 neurons of the hippocampus, are fatally injured by as little as 10 minutes without oxygen.

However, the injured cells do not actually die until hours after resuscitation.

Brain failure after clinical death is now known to be due to a complex series of processes called Reperfusion Iinjury that occur after blood circulation has been restored, especially processes that interfere with blood circulation during the recovery period.

Hope this helps!!!
~Alkka♥


4 0
3 years ago
What is the objective lens used to locate the specimen and first focus?
Mandarinka [93]
Course alteration is the first to be utilized to find the example, and just with the low power objective. When seeing an example, you should dependably utilize the lower control target focal points first. Low power focal point gives the most stretched out field of view and makes it less demanding to discover the example when you look through the magnifying lens. Finding the example at high power, without first focusing it in the field of view at low power, is almost outlandish.
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