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Ann [662]
3 years ago
13

Question 7

Biology
1 answer:
Dmitry_Shevchenko [17]3 years ago
6 0

Answer:B

Explanation:

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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
1. Which of the following accurately describes a typical human karyotype?
yuradex [85]
<span>Human cells contain 23 chromosomes and has a total of 46 pairs of chromosomes. The answer is letter A. Depending on the length and morphology, it has seven groups. They are arranged from largest to smallest. It has 22 pairs of homologus chromosomes known as autosomes and 1 pair of sex chromosomes, a total of 23 chromosomes. A male karyotype has a total of 46 chromosomes and gives a pair of XY while a female karyotype has a total of 46 chromosomes and gives a pair of XX. These pairing are responsible to the gender of the offspring.</span>
6 0
3 years ago
Given the energy charge equation below, if a biological system has an EC = 0.8, what is true about the concentrations of ATP, AD
Andrej [43]

Answer:

c. There is more ATP in the system than ADP or AMP.

Explanation:

ATP is an energy molecule, and in the equation is the most important parameter. if you have all concentrations equal, the answer is EC=0.5 independently of the values

If you add more ADP on the system, the total will be reduced due the term on the numerator is divided by 0.5 - values are usually between 0.5-0.6

If you have more ATP on the system the numbers will automatically arise, due the importance of ATP term on the numerator, usually the EC is equal to 0.8-0.87.

If there is more AMP on the system numbers fall because the denominator is much greater than numerator. Usually the EC is equal to 0.5

4 0
3 years ago
Neoteny is invoked to help explain:________
Triss [41]

Answer:D, how relatively little genetic change could lead to the significant differences we see between ourselves and chimps. 3 mya-2 mya. You inherited from your mom both her crooked nose and her recipe for chocolate chip cookies (both favorable traits).

Explanation:Neoteny is the retention, by adults in a species, of traits previously seen only in juveniles, and is a subject studied in the field of developmental biology. In neoteny, the physiological (or somatic) development of an animal or organism is slowed or delayed. You inherited from your mom both her crooked nose and her recipe for chocolate chip cookies (both favorable traits).

8 0
3 years ago
What is true of levels of c02 in the atmosphere?
Ira Lisetskai [31]

Answer:

412.5 Parts per million.

Explanation:

Based on preliminary analysis the global average atmospheric carbon dioxide in 2020 was 41 2.5 parts per million setting a new record high amount despite the economic slowdown.

8 0
2 years ago
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