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gregori [183]
3 years ago
8

Which of the following statements is true?

Biology
1 answer:
Lelu [443]3 years ago
8 0

Answer:

The true statement is: "Spring tides are the highest, while neap tides are the lowest."

Explanation:

  • The range of difference in the level of water between high and low tide is always larger in spring tide.
  • Neap tides are the moderate tides. It does not have huge difference in higher and low tides because the bulging of the ocean ( by the sun)  balances the bulge of the ocean caused by the moon.
  • This balance is not found in spring tides that is the main reason for spring tides to have the highest level for both higher and lower tides.
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The population in South Africa is more prone to sickle cell anemia (genotype "ss"). People with genotype "ss" survive only up to
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The answer is stabilizing selection.

<span>Sickle-cell anemia is a recessive disorder caused by the presence of two recessive alleles "s", so genotype is "ss". This disorder is characterized by sickle hemoglobin. In an area with malaria, heterozygous individuals "Ss" (with one dominant allele and one recessive allele) have an advantage. These individuals will have both normal and sickle hemoglobin. But pathogen that causes malaria affect only normal hemoglobin, so heterozygous individuals will have half of the hemoglobin resistant to the pathogen and those individuals are resistant to malaria.</span>

Stabilizing selection favors heterozygotes Ss,  disruptive selection favors dominant (SS) and recessive (ss) homozygotes, while directional selection favors dominant (SS) or recessive (ss) homozygote. Since in this example, people with genotype Ss (heterozygotes) are in advantage, then this is an example of stabilizing selection.

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What are the principles of medication administration
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Answer:

This tool is divided into three sections representing the principles in the Medication practice standard: authority, competence, and safety.

Explanation:

Rights of Medication Administration

1. Right patient

  • Check the name of the order and the patient.
  • Use 2 identifiers.
  • Ask patient to identify himself/herself.

2. Right medication

  • Check the medication label.
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3. Right dose

  • Check the order.
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4. Right route

  • Again, check the order and appropriateness of the route ordered.
  • Confirm that the patient can take or receive the medication by the ordered route.

5. Right time

  • Check the frequency of the ordered medication.
  • Double-check that you are giving the ordered dose at the correct time.
  • Confirm when the last dose was given.

6. Right documentation

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  • Chart the time, route, and any other specific information as necessary.

7. Right reason

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8. Right response

  • Make sure that the drug led to the desired effect.  If an antihypertensive was given, has his/her blood pressure improved?
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How does the motion of particles in a gas change as the gas cools?
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A they move more slowly
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