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Mandarinka [93]
3 years ago
12

When you are exposed to sun light for a long time your skin which otherwise appears normal gets heavily tanned what could be the

reason?
Biology
1 answer:
vovangra [49]3 years ago
5 0
"<span>The genes for melanin pigmentation remain turned on and prepare more melanin than usual to protect the skin from photo-damage when it is exposed to sunlight for long time" is the actual reason. </span>
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Mrs. F has a history of mild heart problems, but she has been admitted to the medical-surgical floor for management of her liver
Pachacha [2.7K]

Answer:

Option (B).

Explanation:

Liver is an important organ that regulates the metabolic pathway of the body and helps in the process of digestion. The improper functioning of liver can cause yellowish skin, edema and high blood pressure.

Mrs F medical condition clearly describes the improper functioning of liver. The liver helps in the formation of bile juice. Bile is a soapy compound that helps in the emulsification of lipids.

Thus, the correct answer is option (B).

4 0
3 years ago
Read 2 more answers
Can you determine which instances reflect a valid experiment or conclusion? Check only those that are valid.
vagabundo [1.1K]

Answer:

Only options a reflects the instances with valid experiment or conclusion.

Quality of any experiment depends upon two things reliability and validity. Reliability is measure of regeneration of results every time an experiment is performed under specific conditions.

Validity is measure of accuracy of results of an experiment. It can be check by two ways: internal validity (checks the design of the experiment) and external validity (checks if the conclusion is the real explanation of the phenomenon).

Now, in marine biologist experiment, he concluded the results only after one breeding season. This makes his results unreliable as it might have happened by chance.

Similarly, in cola experiment the taste was only checked by one candidate i.e. Karl. He might have problem in his taste buds. In addition, the temperature of cola can also affects its taste which is not taken care of in the experiment. Hence, it is not the valid experiment.

Similarly. Jeanette could use more plants for her experiment and Robert just followed only one instruction. He didn't perform any experiment.

8 0
3 years ago
A scientist discovered a new antibiotic and wanted to know if it would be effective against group A Streptococcus bacteria. He d
Tom [10]
An experiment is a process where the a scientist tests and draws their evidence and data from. Hence, this process is where the hypothesis be supported or negated.

Variables are traits, factors, or characteristics that either manipulated or measured being the subject to become the data.
The independent variable is B. 
<span>the presence of the new antibiotic</span>
6 0
3 years ago
What does the speed of sound depend on?
sdas [7]

frequency of the sound

4 0
3 years ago
4. The diagram below represents one possible immune response that can occur in the human body.
krek1111 [17]

Answer:

A and C only

Explanation:

I'm sorry I don't know how to explain it but trust me its A and C only.

8 0
2 years ago
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