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
aleksandr82 [10.1K]
3 years ago
9

The features of alveoli for the efficient exchange of gases.

Biology
1 answer:
Nina [5.8K]3 years ago
4 0

Explanation:

The alveoli are lined with mucus and are surrounded by a network of blood capillaries. They have very thin walls for gases to be absorbed through. An individual air sac is called an alveolus. The layer of moisture in the alveoli allows gases to dissolve so that they can diffuse quickly.

You might be interested in
A. Que interpretación o explicación le puedes dar a la cita "… las formas interminables más bellas y más maravillosas han evoluc
gladu [14]

Answer:

esta es una expresión de admiración ante la belleza de los mecanismos evolutivos

Explanation:

El concepto de evolución como mecanismos naturales que está actualmente en boga fue originalmente planteado por Charles Darwin en su celebre publicación "El origen de las especies" (1859). La teoría de la evolución de Darwin está basada en la idea que las especies cambian constantemente con el tiempo a través del proceso de selección natural. Este mecanismo es responsable de la inmensa biodiversidad biológica observada en la naturaleza, la cual incluye la evolución de las especies, poblaciones y organismos individuales. Desde una perspectiva biológica, es imposible no quedar fascinado ante la naturaleza y contemplación de los procesos evolutivos.

5 0
4 years ago
Help please i will mark brainlist!
suter [353]

Answer:

dear student answer us C

5 0
3 years ago
Read 2 more answers
After centuries of moderate weather, temperatures are increasing so much that forest fires are rampant.
nikdorinn [45]

climate change is the answer!

6 0
3 years ago
Read 2 more answers
Que hará un pez que tiene vejiga natatoria para sumergirse en aguas más profundas
kotykmax [81]

Answer:

La vejiga natatoria en un pez, se ve afectada por la presión hidrostatica del agua, generando presión y estrechamiento sobre esta, al disminuirse hace más fácil la inmersión, puesto que está vejiga contiene aire que tiene peso menor que el agua y hace flotar con más facilidad al pez, sin embargo cuando el pez sube, la vejiga aumentará su volumen y tendrá que nadar más para mantenerse más abajo en el agua

4 0
3 years ago
Mechanical stress applied to bone __________ osteoblast activity in bone tissue, and the removal of mechanical stress __________
iren2701 [21]

Mechanical stress applied to bone increases osteoblast activity in bone tissue, and the removal of mechanical stress decreases osteoblast activity.

Explanation:

Osteoblasts are cells , that are produced in the bone marrow and are responsible for formation of bones and bone matrix.

Whenever a mechanical stress is applied on the bones , a series of reactions are triggered. As a result the activities of osteoblast increases to synthesize more and more bone matrix to provide strength.

Again on the other hand a decrease in mechanical causes a decrease in the activities of the osteoblasts.

6 0
3 years ago
Other questions:
  • A mushroom and a humpback whale are alike because both are
    14·2 answers
  • Which of the following describes asexual reproduction?
    10·2 answers
  • Earth's biosphere is?
    12·2 answers
  • The model below represents a phase of meiosis. What stage of meiosis does the picture below represent?
    10·2 answers
  • Fill in the blanks below to complete the hypothesis for this lab. It should answer the lab question, “What is the effect of mole
    11·2 answers
  • Some organisms reproduce sexually. Other organisms reproduce asexually. What are some benefits of asexual reproduction?
    7·1 answer
  • What symbolizes competition among organisms?
    11·1 answer
  • As a science student how to explain the cell division of non-science student ​
    10·1 answer
  • Brainliest - Answer Quickly
    11·2 answers
  • 4. Two experiments were mentioned in the talk: one that tested food preference in caterpillars, and another that tested for egg-
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!