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xxTIMURxx [149]
2 years ago
15

Question 23 of 25

Biology
1 answer:
nevsk [136]2 years ago
5 0

Answer:

I think it is B. The Genes that a person has

Explanation:

Please Correct me If I am wrong :)

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What was one major effect of urbanization on British society during the
Maru [420]

Answer:

B is the answer

B. Improved living conditions resulted in a decline in the mortality

rate.

Hope it helps

5 0
2 years ago
Which of the following scenarios represents the best use of a scientific model?
Pepsi [2]
<span> a. predicting weather patterns</span>. Scientific models are used in making predictions. One way to do this is by analyzing big chunks of data from the past, and see if it can predict the present with accuracy. Computers are often used to create this models because of the huge amount of data that need to be manipulated.
3 0
3 years ago
Read 2 more answers
Matings between individuals from the two populations of Rhagoletis produce hybrid flies that appear to be healthy and have norma
Mama L [17]
<h2>The correct answer is : C.</h2>

Explanation:

  • According to the question, mating between two populations of Rhagoletis produce hybrid flies.
  • This means that the two population is present in the same habitat or locality, hence they are capable of coming in contact with each other and mate. Hence, the answer cannot be Habitat Isolation.
  • Mating produces hybrid flies. This is possible when the gametes (egg and sperm) of the two different populations are capable of capable of coming close to each other and undergoing fusion (fertilization). Hence, there is no Mechanical Isolation.
  • The zygote formed by the above fertilization is capable of developing into healthy hybrid flies with normal life span. Hence, Pre-zygotic Isolation is absent.
  • But the hybrid flies formed are sterile and not fertile, that is, they are incapable of producing viable gametes which can undergo fertilization and produce a new offspring.Therefore, the eggs laid by the hybrid flies hatch less often. Hence, there is existence of Reduced hybrid fertility.
8 0
3 years ago
Why is dna replication called semiconservative?
Rus_ich [418]
DNA replication<span> is </span>semi-conservative<span> because each helix that is created contains one strand from the helix from which it was copied. </span>
5 0
3 years ago
Neville has low blood pressure and his pituitary started producing a homorone to maintain water balance his blood pressure event
ivanzaharov [21]

Answer: The options are missing in the question,the options are;

A) Positive feedback will stop the release of this hormone.

B) Positive feedback will speed up the release of this hormone.

C) Negative feedback will speed up the release of this hormone.

D) Negative feedback will stop the release of this hormone.

The correct answer to the question is option D

NEGATIVE FEEDBACK WILL STOP THE RELEASE OF THIS HORMONE.

Explanation: The hormone the will be produced is known as Antidiuretic hormone (ADH).it is otherwise known as VASOPRESSIN.It is secreted by the posterior lobe of the pituitary gland.

The main effect of Antidiuretic hormone is to reduce urine output,(diuresis is the production of large amount of urine). Antidiuretic hormone acts in the distal convulated tubules and the collecting ducts of the nephrons of the kidneys,it increases their permeability to water and more of the glomerular filtrate is reabsorbed. Antidiuretic hormone secretion is determined by the osmotic pressure of the blood circulating to the osmoreceptors in the hypothalamus.

As osmotic pressure rises,for example as a result of dehydration, secretion of Antidiuretic hormone increases. With this,there is Increased reabsorption of water reducing the amount of urine produced.This implies that more water is retained in the body making the rise in the osmotic pressure of the blood to be low,for example,after a large fluid intake, secretion of Antidiuretic hormone is reduced,less water is reabsorbed and more urine is produced.

At high concentrations,for example after severe blood loss, antidiuretic hormone causes smooth muscle contraction, especially vasoconstriction in small arteries.this has a pressor effect,raising systemic blood pressure.

5 0
3 years ago
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