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Arada [10]
3 years ago
5

What is refraction? What does it mean when we say that light is refracted as it enters the eye?

Biology
1 answer:
vivado [14]3 years ago
7 0
The fact or phenomenon of light, radio waves, being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density
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List at least three natural processes that can cause a change in an environment
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Rain, avalanche, and hurricane
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4 years ago
The lesson of the Kaibab ?
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Answer: kaibab

Explanation:

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When would a testcross be done?
vova2212 [387]
<span>Additional facts:
A test cross between an organism whose genotype for a certain trait is unknown and an organism that is homozygous recessive for that trait so the unknown genotype can be determined from that of the offspring.
Answer:
You'd use it when you wish to see if the one that you think is a homozygous dominant is a purebred, because if you did get a recessive offspring then it proves that the animal is a heterozygous and not a purebred.</span>
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3 years ago
Please list and discuss the indications and steps used during endotracheal suctioning. Suggested Fundamentals Learning Activity:
vlabodo [156]

Answer:

need to be done with plenty of observation to avoid infection.

Explanation:

This technique is quite delicate because the main risk is infection. Some of the main risks are neuromuscular disease, sedation or neurological illness.

Another risk is that by passing the time, there is a difficult in respiratory, in this case, the main risk is directly to the heart, with some stoke, due to the high concentration of carbon dioxide due to the low exchange among oxygen and CO2.

Some of the indications are:

a.- Coarse crackles auscultated over trachea.

b.- Increase the respiratory pressure.

c.- Decrease tidal volume.

d.- Check the levels of oxygen in blood as in arteries.

e.- Check that patients can generate a cough.

Hope this info is useful.

3 0
4 years ago
How are pathogens able to get past the body’s first line of defence?
Klio2033 [76]

Answer:

Stomach acid kills bacteria and parasites that have been swallowed. Your urine flow flushes out pathogens from the bladder area. Skin, tears and mucus are part of the first line of defence in fighting infection. They help to protect us against invading pathogens

Explanation:

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4 years ago
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