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
Zina [86]
3 years ago
15

The only structures that allow gas diffusion across them are the _____.

Biology
1 answer:
Fed [463]3 years ago
8 0
The answer is alveoli, there the only structures.

Hope this helps! Have a BLESSED day! :-)
You might be interested in
What is the structure of DNA (use the words nucleotide, phosphate, sugar,<br> base)?
Elina [12.6K]

Answer:I believe B:The Phosphate Group

Explanation:

6 0
3 years ago
Why is a large number of egg cells not a tissue?
Nat2105 [25]

Answer:

Because they are not working together

Explanation:your welcome

5 0
3 years ago
Read 2 more answers
(GIVING BRAINLIEST!!)
zubka84 [21]
Over the Ocean, D ((:
4 0
3 years ago
Read 2 more answers
Which phase of the cell cycle is typically the longest phase
dexar [7]
Interphase. This is when the cell is growing and duplicating DNA. The stages of mitosis happen more quickly.
6 0
3 years ago
The majority of cells in a human body go through mitosis and not meiosis. Is this true or false?
Andru [333]

Answer:

True

Explanation:

Mitosis results in two cells that are genetically identical. DNA replication only occurs during "S phase." Meiosis is commonly defined as a type of cell division that divides a somatic cell and produces four gamete cells when doing so.

<u><em></em></u>

<u><em>S phase:</em></u> In S phase, the cell synthesizes a complete copy of the DNA in its nucleus. It also duplicates a microtubule-organizing structure called the centrosome. The centrosomes help separate DNA during M phase.

<u><em>Gametes</em></u> are an organism's reproductive cells. They are also referred to as sex cells. Female gametes are called ova or egg cells, and male gametes are called sperm. Gametes are haploid cells, and each cell carries only one copy of each chromosome.

7 0
2 years ago
Other questions:
  • Which method of genetic recombination is Illustrated in the diagram
    9·2 answers
  • What is the most important difference between vertebrates and invertebrates
    15·1 answer
  • Which type of mutation is responsible for causing sickle cell anemia?
    10·1 answer
  • When the left ventricle contracts, blood flows to the?
    6·2 answers
  • Which of the following sources in not currently used to produce electricity for us in our homes?
    11·1 answer
  • Why are large boulders present in steep mountain streams?
    9·1 answer
  • When plasma Ca concentration decreases... 1. Parathyroid hormone level increases 2. Parathyroid hormone level decreases 3. Ca an
    13·1 answer
  • All of the following are true facts about enzymes EXCEPT
    14·1 answer
  • A beetle moving away from a light source is an example of
    6·1 answer
  • What is the main disadvantage of overdraft protection?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!