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Nataliya [291]
2 years ago
6

2. What role does the environment play in the evolution of lactase persistence?

Biology
1 answer:
timofeeve [1]2 years ago
3 0

Answer: the need of evolution

Explanation: Charles Darwin saw the differences between the birds beaks in the Galapagos island. The beaks were different because of the different food that the environment provides.

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With parallel flow, diffusion of urea happened at regions I and II but not at regions III, IV, or V because...
nikklg [1K]

Answer:B

Explanation:bc all of the other ones was equal together and the concentration gradient could not spread them

5 0
3 years ago
Proteins are three dimensional molecules made of strands of amino acids (imagine a ball of string). There are 20 different amino
zlopas [31]

Answer:

A series of nonpolar amino acids would most likely be located in the interior region of the tridimensional molecule.

Explanation:

Proteins are formed by linearly arranged amino acids, each with a side chain: the R-group.

Of the 20 different amino acids that compose the proteins, about half of them -10- are non-polar. Their R-groups are not stable if they are in contact with water, meaning that non-polar amino acids are hydrophobic.

When proteins are synthesized, they acquire a three-dimensional structure that makes them more stable. Lineal polypeptides get folded and turn into a shape that makes them more stable in the environment and capable of accomplishing their biological role. When they are in an aqueous media, their bent shape leaves the hydrophilic R-groups in contact with water. The hydrophilic R-groups stick in the center of the polypeptide, facing the protein interior, and avoiding interaction with water.

3 0
3 years ago
Based on what you have learned from your rankings in parts a and b, why is it generally hotter in summer than in winter?.
lesya692 [45]

We feel hotter in summer than in winter because the temperature is generally higher than in winter.

<h3>What are seasons?</h3>

There are three seasons on earth namely winter, summer, and rainy season. In the winter season, the temperature is cold and during summer the temperature is higher.

Timing and characteristic of season depend upon the location of the earth. The time of a year region experience season depends on it is northern hemisphere or southern hemisphere.

The southern hemispheres experiences winter while northern hemisphere experiences summer. The cycle of seasons is caused by earth's tilted towards the earth. The planet rotates around an axis.

Therefore, We feel hotter in summer than in winter because the temperature is generally higher than in winter.

To learn more about seasons, refer to the link:

brainly.com/question/19009677

#SPJ2

5 0
1 year ago
Please just answer a few biology questions for me!
arsen [322]

Answer:

Explanation:

1. The fur in both parents is Black, they both have dominant traits

2. Phenotype in box 3 would be Black.

3. Genotype ratio is 1:3

7 0
3 years ago
What are the principles of medication administration
Natali [406]

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.
  • Check the order.

3. Right dose

  • Check the order.
  • Confirm the appropriateness of the dose using a current drug reference.

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

  • Document administration AFTER giving the ordered medication.
  • Chart the time, route, and any other specific information as necessary.

7. Right reason

  • Confirm the rationale for the ordered medication.  What is the patient’s history? Why is he/she taking this medication?

8. Right response

  • Make sure that the drug led to the desired effect.  If an antihypertensive was given, has his/her blood pressure improved?
  • Does the patient verbalize improvement in depression while on an antidepressant?

3 0
3 years ago
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