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Lelu [443]
2 years ago
5

Hai has been taking expensive beta-carotene supplements for years, because he believes they will reduce his risk of cancer. hai

has just learned that a well-controlled study published in the prestigious new england journal of medicine showed that beta-carotene supplements do not reduce cancer risk. hai is probably experiencing
Biology
1 answer:
Salsk061 [2.6K]2 years ago
3 0

an emotional dilemma or cognitive dissonance

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Which statements describe advantages of using renewable resources? Check all that apply. lower environmental impact lower cost o
NeTakaya

Answer:

1- lower environmental impact

3- replenish faster than they are used

5- produce cleaner energy

Explanation:

5 0
2 years ago
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The synthesis of a new strand begins with the synthesis of a(n) _____. The synthesis of a new strand begins with the synthesis o
Anna35 [415]

Answer:

primer

Explanation:

Most biological reactions rely on the enzyme to speed up the reaction. In the case of DNA replication, this enzyme is DNA polymerase. a; DNA is a double helix made up of two long chains of deoxyribonucleotides. ... b; a primer is used to start this process by giving DNA polymerase something to bind the new nucleotide to. just for you to see.

7 0
2 years ago
Analyze and conclude 7. which, if any, of the blood samples tested cna the patient with type b+ blood receive? explain why. 8. e
Digiron [165]
<span>7. which, if any, of the blood samples tested cna the patient with type b+ blood receive? explain why.
It can't be answered because you didn't put the sample test result


8. explain how you were able to use your knowledge of how different types of blood react with anti-a, anti-b, and anti Rh antibodies to determine the blood types of the four samples.
If the blood react with anti-a, then the blood must not have A antigen
</span>If the blood react with anti-b, then the blood must not have B antigen
If the blood react with anti Rh, then the blood must not have Rh antigen
Based on the antigen, you can conclude the result as:
react with anti A= blood type B
react with anti B= blood type A
react with anti A and anti B= blood type O
react with anti Rh= Rh-
not react with anti Rh= Rh+
<span>
9. if a person has type a blood, he or she would have antibodies for what blood type?
Type A blood has antigen A. So that person should not have anti-A antigens. 
The person should have anti-B antibodies because it was a foreign object to him. Depends on the Rhesus type, he can have Rh antibodies too.

10. why is type o negative blood known as the universal donor? why is o positive not a universal donor?

Type O blood doesn't have antigen-A or antigen-B. That means the blood cells won't trigger any reaction on Type A, B, AB, or O blood. Negative rhesus also means that the blood is safe for Rhesus negative or Rhesus positive type. 

Positive O blood type has rhesus antigen, so it will trigger a reaction in Rhesus negative type. </span>
8 0
2 years ago
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Compared to the cervical (neck) vertebrae, the lumbar (lower back) vertebrae are positioned more ______.
Montano1993 [528]
Not sure what this question is looking for, but possible correct answers would be inferior or maybe even distal
4 0
2 years ago
Which tissue type is formed by many cells joining together, which are multinucleated?
Sever21 [200]

Answer:

Skeletal muscle tissue

Explanation:

4 0
2 years ago
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