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Ksenya-84 [330]
3 years ago
8

Which of the following describes how background research helps in the design of an experiment?

Biology
2 answers:
anyanavicka [17]3 years ago
8 0

The answer is C. When you design an experimental plan, the main thing is about the novelty of the research and for that, proper literature study of what is already known, what research has been already done is necessary. Background research will help to make out what has not been answered and to design an experiment accordingly.

BlackZzzverrR [31]3 years ago
6 0

Answer: C. It provides information about what is already known about a particular research question.


Background research is a research which is done before designing a new research plan. This involves a review of complete history and nature of research problem with respect to the existing literature. Therefore, background research provides  already known information about a particular research.

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Nitrogen and carbon are more abundant in proteins than sulfur. Why did Hershey and Chase use radioactive sulfur instead of nitro
lora16 [44]

Answer:

Hershey and Chase experiment confirms that DNA is the genetic material of the living organism, not the RNA or protein. They also got a noble prize for this discovery.

Hershey and Chase use the radioactive sulfur to label the proteins and distinguish them from the DNA because DNA do not contain sulfur. The radioactive label phosphorus was used to label the DNA as phosphorus is specific to DNA as they wants to know exactly the genetic material. They do not use the radioactive carbon and nitrogen because both carbon and nitrogen are present in DNA and RNA. This labeling may produce confused result as it label both DNA as well as protein. The result o radioactive phosphorus and sulfur determines that DNA is the genetic material of the organism.

4 0
3 years ago
Which forms asks for information about medical conditions such as allergies?
creativ13 [48]
Answer: New Patient Forms or Intake Forms

Explanation:
New patient forms have one purpose: to gather enough information about the patient's habits, general health, medical history, allergies and other information that will enable the medical organization to provide effective and safe treatment for the patient.

Often the forms provide information about the patient's rights and the responsibilities of the medical organization in administering health care to the patient.

Sometimes, new patient forms ask permission to obtain medical data from other medical organizations that had provided medical services to the patient.
 
4 0
3 years ago
Three effects of constipation​
algol13

1. Infections

If you end up being constipated, you are probably having trouble passing a stool. If the stool has become dry and hard from lack of moisture, it could make having a bowel movement painful. When the rectum is stretched out to accommodate the painful stool, the rectum could stay open resulting in rectal prolapse. This could lead to an infection.

 

2. Bad breath

One unusual side effect is bad breath. You may wonder how a condition that is occurring at one end of your body could affect the complete opposite end of your body, but it can. What happens is the gasses and toxic waste that are building up because you are constipated rises up and as it goes throughout the body and it usually ends up in your mouth.

3. Lowered ratio of healthy bacteria

Healthy bacteria in your body is called flora. The purpose of flora is to help with the production of vitamins and helps with your immune system. When you are constipated the amount of flora in your intestine is reduced putting you at risk for illness and infection.

Extra Options

4. Colon cancer

The colon is meant to store a couple of pounds of stools. If you become constipated, there is a buildup of stools and puts the colon at risk for ripping. When the colon becomes strained because it is overloaded, it strains the inner membrane. Ruptures and possible infections occur and it could lead to colon cancer.

 

5. Increased toxins

Your skin will show on the outside what your body is going through on the inside. If you become constipated, you will suffer an excess of toxins in your body. The skin, your largest organ, has to work overtime to get rid of these toxins. If your skin looks less than glowing you need to address the issues that are going on inside of your body before you start looking for a new facial cream.

From- naturalon.com

6 0
3 years ago
Gene mutations can be passed on to future generations and drive natural selection. Choose the best description of how Gene mutat
prohojiy [21]
Gene mutations can be passed on to future generations and drive natural selection. ... Gene mutations can be helpful, harmful, or neutral for an organism's survival. Only mutations that are helpful in the organism's environment would influence its survival and reproduction
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What is the main idea behind the model of a molecular clock?
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D I just took the test
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