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
Mariana [72]
3 years ago
15

4. In quiet breathing, a. None of the options is correct b. Inspiration and expiration are both passive processes c. Inspiration

is passive and expiration involves muscular contractions d. Inspiration involves muscular contractions and expiration is passive
Biology
1 answer:
Alina [70]3 years ago
8 0

Answer:

d. Inspiration involves muscular contractions and expiration is passive

Explanation:

Breathing is the process of taking air in and out of the body or more specifically taking oxygen in and moving carbon dioxide out of the body. Our respiration rate is regulated by medulla in brain and alter according to our activities.

Quiet breathing is slow, relaxed breathing that lowers the blood pressure, slows the heart rate beat and calms the mind. It is done while sitting or maintaining a proper posture that require less energy and opposite to deep breathing that done during energetic activities like running.

Diaphragm is the main muscle movement during quiet breathing, which must contract to carry out it because its contraction draw the air to alveoli. So inspiration involves the contraction of muscles but the expiration is passive in quiet breathing. The reason is that due to the relaxed elastic muscles, the lungs and chest wall regain their resting volume according to the functional residual capacity.

You might be interested in
Air is composed of gases that are so well mixed you cannot tell them apart. This is called a what mixture
Ber [7]
It is called a homogeneous mixture

6 0
3 years ago
Human population growth is currently most rapid in
kirill115 [55]
It is more rapid in the earth I’m just kidding it’s more rapid in the Middle ages
3 0
3 years ago
How many moles are present in 10, 0 grams of sodium hydroxide (NaOH )
Korvikt [17]

Answer:

19 gram of molecule are present in NaOH

Explanation:

because of 10 gram we put in NaOH it is incomplete if we put 9 gram in NaOH it is complete NaOH =11+8+1 =19

7 0
3 years ago
Read 2 more answers
summarize in your own words how plants take energy from the sun and convert it into chemical energy (sugar)
siniylev [52]

Answer:

<em>Steps of photosynthesis:</em>

<em></em>

Step 1: Energy is captured from sunlight.

Step 2: Light energy is converted to chemical energy,

which is temporarily stored in ATP and the energy

carrier molecule NADPH.

Step 3: The chemical energy stored in ATP and NADPH

powers the formation of organic compounds, using carbon

dioxide (CO2 ).

Explanation:

8 0
3 years ago
Which two characteristics are used to classify stars on the Hertzsprung-Russell diagram?
Akimi4 [234]

Answer:

Temperature and absolute brightness

Explanation:

The X-Axis of the diagram is heat, and it actually goes down in heat.

The Y-Axis is for brightness, and it works like a regular axis, meaning as it goes up, the number or unit of some sort, in this case luminosity, goes up.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Radioactive dating of fossils and rocks is possible because radioactive isotopes
    11·1 answer
  • Earth's initial atmosphere probably contained higher levels of water vapor than today's atmosphere. Most of the water vapor left
    11·2 answers
  • If an epidemic were declared in our town, what could happen to control and eventually eliminate it?
    13·1 answer
  • How do you find the “total magnification of something that you are viewing through a microscope?
    12·2 answers
  • Which of these is an agent of abrasion?
    9·1 answer
  • Which of the three graphs shown in figure 17-5 might show a population of birds with members that specialize in different types
    5·2 answers
  • In 1859, a small colony of 24 rabbits was brought to Australia. By 1928 it was estimated that there were 500 million rabbits in
    12·1 answer
  • An organism has a nucleus and is multicellular but has no cell wall and no chloroplasts
    13·2 answers
  • An incomplete diagram of the rock cycle is shown below. Use the labels to correctly complete the diagram.
    15·2 answers
  • How can you prevent oil spills from interfering with storms?<br> Need at least 5 reasons.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!