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
vlabodo [156]
3 years ago
8

Identify 2 characteristics of the alveoli that facilitate gas exchange and infer their significance for their process

Biology
2 answers:
Mars2501 [29]3 years ago
3 0
First, in the lungs are150 a million alveoli (very large surface area) which mean more oxygen is taken in.
<span>Second, of all, the alveoli are covered in capillaries, meaning that gas exchanges happen extraordinarily fast - with each breath.</span>
spayn [35]3 years ago
3 0
First of all, humans have their two lungs to breathe, which are covered in over 150 million alveoli, meaning a very, very large surface area, which means more oxygen is taken in.

Second of all, the alveoli are covered in capillaries, meaning that gas exchanges happen extraordinarily fast - with each breath.

So, yes, they add up to create a large surface area and are covered in capillaries.
You might be interested in
The process in which rocks are formed, change, and break down is called
lubasha [3.4K]
<span>The Rock Cycle is the process in which rocks are formed, changed, and broken down. An igneous rock can either change into a sedimentary or into a metamorphic rock; just the same that a sedimentary rock can change into an igneous rock or metamorphic rock. Factors like heat, water, and air can break and form new types of rocks in a continuous cycle. <span>

<span>The rock cycle never stops; it is a continuous process that occurs through time. A mountain that is composed of<span> metamorphic rocks can easily be washed away by streams and new sedimentary rocks can be formed through this process. </span></span></span></span>
7 0
3 years ago
When invaded by antigens, the body forms substances called?
Delvig [45]
Anti-bodies. This is not a hard question to answer, as you can just copy/paste the question into a search engine to get an adequate answer.
7 0
3 years ago
Jan's sister and mother have both had breast cancer. She is wondering if she should undergo genetic testing to check for a mutat
Lynna [10]
A) Yes, Jan should undergo genetic sequencing.
BRCA1/BRCA2 are the causes of 20-25% of all hereditary breast cancers, so if Jan's mother and sister both have breast cancer, then the odds are that she has BRCA1 as well.

B) 
Pros: If she does have an abnormal BRCA1 gene, she can take steps to lower her risk of breast cancer.

Cons: The tests can incite discrimination towards her in the workplace, and having it known she has a risk for breast cancer can severely increase the cost of insurance.

C) Genetic sequencing could affect the frequency of genetic diseases because the test could point out --- I can't finish because I have to go. I'm so sorry, reask the url of this question and ask someone to finish. Have a nice day!
5 0
3 years ago
Read 2 more answers
When ants get food from plants and protect the plants from being eaten, what kind of relationship do these two species have? Plz
Mariana [72]

Answer:

Myrmecophytes, otherwise known as ant-plants, share a mutualistic relationship with a colony of ants. This is when two organisms of different species each benefit from the activity of the other. There are over 100 different genera of myrmecophytes that can be found across the world's tropical regions

Explanation:

4 0
3 years ago
The average age at which an infant can sit unattended is approximately __________ months.
Alika [10]
This varies from baby to baby, but it is approximated to be the ages of 4 to 7 months.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Why does fast-moving water lead to greater erosion than slow-moving water?
    6·2 answers
  • How does a virus infect a host cell? A. It lays its lipids on a host cell. B. It lays its proteins on a host cell. C. It injects
    7·2 answers
  • What short term objectives are required for tesla to survive?
    5·1 answer
  • Porque el huevo es una celula
    8·1 answer
  • Research the process of erythropoiesis, and explain the role erythropoietin plays. Why is this a popular "doping" drug for athle
    11·1 answer
  • If i were an Organelle Exploration. I would be a Nucleus. Write a paragraph about your choice of Organelle. Provide the answers
    12·2 answers
  • Cancer is all of the following EXCEPT
    15·2 answers
  • Which organelles work together in converting the potential energy of organic compounds into a suitable form for media used by th
    7·1 answer
  • What controls traits and inheritance
    14·2 answers
  • I am struggling answering this question:Discuss the structural differences between polysaccharides starch, cellulose, and glycog
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!