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
Debora [2.8K]
2 years ago
15

Breathing out occurs when the respiratory muscles _____. relax dilate contract

Biology
2 answers:
damaskus [11]2 years ago
6 0

Answer:Relax

Explanation:

In exhalation, the diaphragm moves upward and the chest wall muscles relax, causing the chest cavity to get smaller and push air out of respiratory system through the nose or mouth. Every few seconds, with each inhalation, air fills a large portion of the millions of alveoli.

Studentka2010 [4]2 years ago
3 0
Breathing out occurs when the respiratory muscles relax
You might be interested in
What is the difference between mechanical digestion and chemical digestion?
Bad White [126]

Answer:

So, Mechanical and Chemical Digestion is the way of breaking down foods in the body. The difference between Mechanical and Chemical Digestion is, Mechanical Digestion involves the body's movement to make the food smaller and Chemical Digestion involves enzymes to break the food down.

Explanation:

Since Mechanical Digestion involves moving around to break the food down, you would get up and walk around a little to burn it to make it work and Chemical Digestion is just using the natural enzymes in the body to break food down.

3 0
3 years ago
What are Haploid And Diploid Cells?
sammy [17]
Diploid cells contain 2 sets of the same DNA where as haploid contains one set.....so our normal cells in our body (somatic cells) are diploid however our sex cells(gametic cells) which are the egg of a woman and sperm from a guy are only haploid which means they have only 1 copy of DNA......this is because they fuse with one another and add their DNA together to make a diploid cell
5 0
3 years ago
Read 2 more answers
HELP ASAP! In what direction does air fow between areas of high and low pressure?
Anna71 [15]

Answer:

Explanation:

winds blow clockwise around an area of high pressure and counter-clockwise around low pressure.

7 0
3 years ago
Any alloy of iron mixed with a small amount of carbon to increase its strength or malleability is called _______________.group o
Amiraneli [1.4K]

Any alloy of iron mixed with a small amount of carbon to increase its strength or malleability is called Steel.

<h3>Why we use alloy ?</h3>

The most common reason for alloying is to increase the strength of a metal. This requires that barriers to slip be distributed uniformly throughout the crystalline grains. On the finest scale, this is done by dissolving alloying agents in the metal matrix (a procedure known as solid solution hardening).

It increases tensile strength also. Hardness, hardenability and resistance to wear. It decreases tendency toward scaling and distortion. It increases the rate of carbon-penetration in carburizing.

<h3>How to make Alloy? </h3>

Alloys are made by mixing two or more elements, at least one of which is a metal. This is usually called the primary metal or the base metal, and the name of this metal may also be the name of the alloy.

To know more about Alloy please click here: brainly.com/question/716507

#SPJ4

6 0
2 years ago
Scientists group materials together ________ it is easier to compare and study them that way
o-na [289]

The provided question is incomplete, the correct and complete question is as follows:

Choose the answer that best completes the sentence below.

Scientists group materials together ____________ it is easier to compare and study them that way.

A however

B but

C although

D because

Answer:

The correct answer is - option D because.

Explanation:

Researcher and scientists tries to group material together on their similarities and difference to one another which makes it easier to study and compare various type of materials.

It is the one of major reasons to differentiate materials between groups like liquids state, gases state,  plasma state and solid state materials. One can easily see the difference and comparison is very clear on this type of grouping of materials.

Thus, the correct answer is - option D.

5 0
3 years ago
Other questions:
  • Which is not an age-related change that alters the integument? which is not an age-related change that alters the integument? re
    11·1 answer
  • What are the "twisty columns" and "rungs" in the DNA?
    13·2 answers
  • Study the picture above. Based on what you leared in this unit, correctly match the type of plate
    13·1 answer
  • The number of different species of plants and animals in an area is called
    9·1 answer
  • Which is a unique feature of Venus? A. The thick atmosphere—made mostly of carbon dioxide—absorbs solar radiation, heating up an
    8·1 answer
  • The beaks of finches found on various Galápagos Islands differed based on ?
    6·1 answer
  • What is another name for reservoirs
    8·1 answer
  • PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU B
    10·2 answers
  • Which of the following is a true statement about weather and climate maps?
    8·1 answer
  • What is needed in order for scientists to refine and expand on ideas?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!