1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alexandr1967 [171]
3 years ago
10

Consider three blood vessel segments of equivalent length and diameter: vessels A, B, and C. Pressure at the beginning of each s

egment is as follows:
A) P = 100 mmHg;
B) P = 80 mmHg;
C) P = 60 mmHg.
Pressure at the end of each segment is as follows:
A) P = 70 mmHg;
B) P = 50 mmHg;
C) P = 30 mmHg. Which vessel has the greatest blood flow through the described segment?
Biology
1 answer:
anzhelika [568]3 years ago
5 0

<u>Answer:</u>

<u>A, B and C. All have same blood flow.</u>

<u>Explanation:</u>

The hemodynamic relation between blood flow (F), resistance (R)  and pressure difference (ΔP) can be expressed as

F = ΔP/R

<u>RESISTANCE:</u>

Since the three blood vessel segments are of equal length and diameter, it implies that all three blood vessel segments possess equal resistance.

Since the resistance is same in all vessels therefore, in this case blood flow depends on pressure differences.

<u>PRESSURE DIFFERENCES:</u>

ΔP in vessel segment (A):

100-70= 30 mmHg

ΔP in vessel segment (B):

80-50= 30 mmHg

ΔP in vessel segment (C):

60 -30 = 30 mmHg

<u>CONCLUSION:</u>

Since the pressure differences is same i.e. 30 mmHg in all vessel segments and resistance is also same, therefore blood flow will be same in all vessel segments.

You might be interested in
11. Which is a density-dependent factor?
Sophie [7]

Answer:

Explained below:

Explanation:

Density-dependent factors are biological factors adopted by the population as a resource. The things can be like shelter, food, or different poor resources. Density-dependent factors affect fitful variations in the population as its density fluctuations. If the population is small, these portions typically support improved rates of birth and lower will be the death rates, empowering the population to increase and when the population is big and thick, these factors display that the birth rate is decreased and death rate became higher.

6 0
3 years ago
Can someone help me? The question is State two scenarios that demonstrate the process diffusion​
gtnhenbr [62]

Answer:

One could be in the cell. The cell respires, thus producing carbon dioxide in it. So the concentration builds up in the cell. Diffusion is the net movement of particles from a region of high concentration to a region of low concentration, and the carbon dioxide concentration outside the cell is less, therefore the carbon dioxide molecules moves outs of the cell.

Another scenario is when perfume is sprayed into the air. The perfume particles collides with the air particles (lower or no concentration of perfume). This process goes on and on. This is diffusion since the concentration perfume particles collides with the less concentrated particles of perfume.

8 0
3 years ago
What type of macromolecule stores genetic information
hammer [34]

Nucleic acids (DNA and RNA) are the only known molecules that are able to store genetic information and transmit genetic information (copy it and pass it on). They are found in all living things on Earth.

-Agarvated

5 0
3 years ago
A model of a gene, DNA, and a chromosome is shown here. A researcher tags the gene with a heavy radioactive isotope (P-32). Whic
adoni [48]

Answer:

The gene will be radiolabeled, but only a portion of the chromosome will display P-32 because genes are smaller than chromosomes

Explanation:

Genes are made of DNA, but there are many (numerous) genes found along chromosomes. Only a small portion of the chromosome will be radiolabeled.

7 0
3 years ago
Complete the sentence using the word below​
8090 [49]

Answer:

During a process called photosynthesis, plants take in carbon dioxide, sunlight ,and water.

Plants make sugar and give off oxygen as a by-product of this process.

Please mark me brainliest if this answer could help, have a great day.

5 0
2 years ago
Other questions:
  • Give an example of a specialized leaf system that is adapted specifically to its environment and explain how it works.
    8·1 answer
  • Which of the following is true for identical twins?
    8·1 answer
  • Specialized lymphatic capillaries called lacteals are _________.a. more numerous than blood capillaries. b. necessary for the tr
    6·1 answer
  • What is the role of the effector in a feedback loop?
    5·2 answers
  • A plate moves 200 m in 10,000 years. What is its rate in cm/year?
    6·1 answer
  • During a heavy thunderstorm, where would you most likely to see surface runoff?
    10·2 answers
  • What are the four primary uses or benefits of the nguni breed amongst South African communities?​
    11·1 answer
  • HELP PLEASE ILL GIVE YOU BRAINLEST
    14·1 answer
  • In three to five sentences, explain why animal cells do not require a cell wall or a central vacuole for their functions. 15 poi
    5·2 answers
  • A catabolic reaction is one in which large molecules are broken down into smaller molecules.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!