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
Tamiku [17]
3 years ago
8

which structure of the respiratory system plays the main role in carry out the system’s primary function? trachea pharynx alveol

i nose

Biology
2 answers:
GuDViN [60]3 years ago
7 0

Answer:

The correct answer would be alveoli.

Alveoli (singular alveolus) are the functional unit of the respiratory system.

They are sac like structures present at the end of respiratory tree (in lungs).

They are arranged in the form of clusters such as found in cluster of grapes.

The exchange of oxygen and carbon dioxide takes place at alveolar level.

These are one celled thick which helps in easy diffusion of oxygen (from inhaled air into the blood stream) and carbon dioxide (from blood stream to exhaled air).

In addition, they are highly supplied with blood capillaries which bring the carbon dioxide from the cells and take oxygen to them.

baherus [9]3 years ago
5 0
The main function of the respiratory system is to allow the exchange of gases between the atmosphere and the lungs.
Hence,the only structure that carries out this function is the alveoli as other structures such as the nose,trachea and pharynx transport gases to the alveoli just so that it can can out its function.
You might be interested in
The mantle and core would be considered part of which earth system realm
dolphi86 [110]
Biological realm..............
4 0
3 years ago
Read 2 more answers
Which of the following is likely the direct source of energy to move the sailboat? A, sun B. Wind. C. Moving sails D, Moving wat
ser-zykov [4K]
The direct source of energy to move the sailboat is probably wind, since wind is what pushes the sail of the sailboat, which is what propels the sailboat forward. 

Hope this helps!
5 0
3 years ago
According to the passage, which of the following topics of study was the most crucial to his final analysis?
TEA [102]

Answer: The study of plant varieties.

Explanation:

This question relates to the studies that Gregor Mendel, founder of modern genetics, performed at the University of Vienna.

Experimenting on pea plants, Gregor Mendel was able to establish a lot of the rules of heredity that we know today even though his research was not fully appreciated or understood during his own life.

He credited the study of plant varieties to have been most crucial to his final analysis because farmers had been crossbreeding varieties for millennia to bring about better traits in plants.

4 0
3 years ago
which of the following human activities most likely result in the growth of the north America deer population
Musya8 [376]

Hunting their predators

8 0
3 years ago
Read 2 more answers
A dog's nose is____ to the dog ears? a.rostral b'.cranial c.caudal. d.distal
Vikentia [17]
A - rostral and cranial are very similar but rostral are for head structures 

HOPE I COULD HELP!!! C:
4 0
3 years ago
Other questions:
  • Which of the following is an INVERTEBRATE?<br> A) Butterfly<br> B) Wasp<br> C) Crab<br> D) Frog
    11·2 answers
  • which organelle can be compared to a security guard who decides whom may enter a building and whom may not? cell membrane cytopl
    15·2 answers
  • PLEASEEE HELP ASAP !!! 40points!
    10·1 answer
  • Complete the following rule if a child is different from both of their parents, the child must be
    13·2 answers
  • A population of mice has black or brown hair. The gene for black hair color (B) is dominant over brown (b). If 16% of the mice a
    11·1 answer
  • When Mendel crossed purebred purple flowering plants (PP) with purebred white flowering plants (pp), what were the flower colors
    13·1 answer
  • A small prokaryotic cell is approximately a rectangular prism with a width of 2uM, length of 4uM, and depth of 3 uM. What is the
    7·1 answer
  • List and explain the eight characteristics of living organisims​
    12·1 answer
  • Which theory suggests that speciation happens slowly through the accumulation of many small changes
    15·1 answer
  • 2. What is the function of DNA and RNA?a.Store and transmit hereditary informationb.Provide the body with quick energyc.Help to
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!