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
svlad2 [7]
4 years ago
12

The aorta receives the full force of blood exiting the heart during ventricular systole. Which of the following statements best

describes the adaptive anatomy of the aorta? A) The aorta's tunica media is thick with dense regular connective tissue to withstand the blood's pressure. B) Smooth muscle is relatively thin in the aorta to increase lumen size and systemic blood flow. C) Elastic fibers are extensive in the tunica media of the aorta and dampen the pulse pressure generated by the heart. D) The tunica external of the aorta is nearly absent compared to other vessels.
Biology
1 answer:
11Alexandr11 [23.1K]4 years ago
6 0

Answer:

A & C

Explanation:

Aorta is the biggest artery and channels pumped blood from the left ventricle of the heart to tissues. It, therefore, needs to bear the greatest burden of blood pressure because the left ventricle is thicker than the right ventricle and pumps blood with high pressure so that it reached the tissues with the right hydrostatic pressure to allow blood plasma pass through the capillaries walls into tissue fluid.

The walls of the aorta need to be thick enough and elastic to bear the pressure. This is why the <em>tunica media</em> is thickest it aorta because these elastic fibers provide strength and elasticity to prevent rupturing and smooth muscle cells contract and relax in regulation of this pressure to maintain the right pulse.

You might be interested in
The diagrams are showing a cell undergoing a mitotic division at different points of Anaphase.use the ABC labels on the drawings
katrin [286]

The rigth answer is C (B ==> A ==> C)

The 3 images represent the key stages of mitosis.

Image B represents the beginning of the anaphase, where the chromosomes are aligned in the equatorial plate.

The image A represents the anaphase where the chromosomes are separated on both sides of the cell.

The image C represents the telophase or one can observe in the middle the formation of the division furrow to allow the cell to cut itself in two.

8 0
3 years ago
Read 2 more answers
2.)
wlad13 [49]
Answer: C-G-A will produce Arginine.

This can be shown in an amino acid codon chart :)
8 0
3 years ago
In what way is the treaty on plant genetic resources limited ?
SCORPION-xisa [38]

Answer:

The correct answer is option D. "It neglects the loss of habitat".

Explanation:

The main objective of the international treaty on plant genetic resources for food and agriculture is to achieve the conservation and sustainable use of all plant genetic resources and the fair and equitable sharing of the benefits obtained from their use. This treaty is managed by Food and Agriculture Organization of the United Nations and is applied in many countries of the world. One of the limitations of this treaty is that it neglects the loss of habitat, which can also affect the availability of plant genetic resources. The international treaty on plant genetic resources is limited to work on loss of biodiversity and management of genetic resources such as seeds.

5 0
3 years ago
Duplication of a segment of a chromosome would result in _______. see section 16.4 (page 344) .
Svetlanka [38]
Duplications are repeated segments of genetic materials that result from unequal crossing over during meiosis or through a replication error prior to meiosis. They usually occur when homologous pairs do not line up correctly or in chromosomes with a lot of repeat sequences. Duplication of a segment of a chromosome would result in Genetic variability during evolution due to gene duplication. 
5 0
3 years ago
Explain why an organism cannot choose to have a mutation that would enable it to live more successfully in its environment.
vaieri [72.5K]

Answer:

Explanation:

An organism can't chose to have a mutation because it depends on the way they are born. If they are missing some type of mineral, (Protein, Vitamin, etc.) they will have a mutation because they're missing that. Well, something similar to a mutation is natural selection and genes. For example, there are some short and tall giraffes. The tall ones can reach the tree and the short ones can't so they die and the tall ones can reproduce and their offspring will inherit that trait

6 0
3 years ago
Other questions:
  • A transcription factor that binds to a gene first and facilitates binding of other transcription factors is called a(n) ________
    14·1 answer
  • Name at least three physical properties of the bowling<br> ball.
    9·2 answers
  • The four sphere of earth
    9·1 answer
  • Primordial follicles consist of an oocyte and ________. primordial follicles consist of an oocyte and ________. a fluid filled c
    12·1 answer
  • Do the shortest duration of insolation and the minimum temperature occur in the same month?
    10·1 answer
  • What component do animals add to the atmosphere when they breathe?
    6·1 answer
  • In the thylakoid membranes, light strikes pigments in photosystem II and is absorbed by ___________.
    15·2 answers
  • How might the digestive system and the immune system interact to help protect the body?
    6·1 answer
  • Use numbers to indicate the order of steps in the pyruvate dehydrogenase complex: 1. _______Decarboxylation of pyruvate to an al
    11·1 answer
  • Which of the following does not affect the gravitational force between the earth and the sun?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!