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Anna007 [38]
3 years ago
10

Which of these molecules is a nucleic acid?

Biology
1 answer:
skad [1K]3 years ago
6 0

Answer:

a.) RNA

Explanation:

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Which statement is true about the law of parsimony?
VARVARA [1.3K]

Answer:

a theory should provide the simplest possible (viable) explanation for a phenomenon. and thereby your answer is C

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3 years ago
A client comes to the physician's office for a follow-up visit 4 weeks after suffering a myocardial infarction (MI). The nurse t
frutty [35]

The question is incomplete.

The complete question is:

A client comes to the physician's office for a follow-up visit 4 weeks after suffering a myocardial infarction (MI). The nurse takes this opportunity to evaluate the client's knowledge of the ordered cardiac rehabilitation program. Which evaluation statement suggests that the client needs more instruction?

A. "Client performs relaxation exercises three times per day to reduce stress."

B. "Client walks 4 miles in 1 hour every day."

C. "Client's 24-hour dietary recall reveals low intake of fat and cholesterol."

D. "Client verbalizes an understanding of the need to seek emergency help if his heart rate increases markedly while at rest."

Answer:

Option B. "Client walks 4 miles in 1 hour every day."

Explanation:

A myocardial infarction (MI) or heart attack occurs when there is no sufficient blood supply to the heart due to less blood flow which causes damage to the heart muscle.

After 4 weeks of MI, a client will be provoded more instruction on the basis that " Client walks 4 miles in 1 hour". The physician should suggest him to walk for 2 miles in less than 1 hour as walking 4 miles in 1 hour can cause another MI due to increase in the oxygen demand of heart.

Therefore, client should be provided precautions regarding appropriate exercise. Client will be notified about the cardiac rehabilitation program that include relaxation exercises, to follow low-cholesterol diet, and seeking emergency help if heart rate increases suddenly.

Thus, the correct option is B.

4 0
4 years ago
The multiple nuclei in skeletal muscle cells are the result of the
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Answer:

Fusion of embryonic myoblasts, each having its own nucleus to many other myoblasts to form the multinucleated skeletal muscle fibers.

Explanation:

The multiple nuclei in skeletal muscle cells are as a result of fusion of embryonic myoblasts, each having its own nucleus to many other myoblasts to form the multinucleated skeletal muscle fibers. This gives rise to multiple copies of genes, allowing production of the large amounts of proteins and enzymes and ATPs needed for muscle contraction.

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the __________ __________ is made up of two concentric membranes and is continuous with the membrane of the endoplasmic reticulu
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Answer:

The <u>nuclear  envelope</u> is composed of two concentric lipid bilayer membranes separated by an intermembrane space of about 20-40 nm. The outer membrane is continuous in many places with the rough endoplasmic reticulum. Like the rough ER the outer membrane of the nuclear envelope is dotted with ribosomes.

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Explain why a person making an emergency call should never be placed on hold
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Its important not to put a person making an emergency call on hold because since it might be a patient who is a serious case and might lose consciousness. It is therefore always important to obtain the name, phone number, and location at the start of the call so that the patient can be found if they lose consciousness or is disconnected. Additionally its is important to make sure one stays connected with the patient until help arrives to ensure their safety.
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