What is a diaphragm? What does it do?

Answers

Answer 1

The diaphragm, located below the lungs, is the major muscle of respiration. It is a large, dome-shaped muscle that contracts rhythmically and continually, and most of the time, involuntarily. Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges.

Explanation:

Diaphragm contracts and expands when you breathe air

Answer 2

Answer:

A diaphragm on a microscope is the piece that enables the user to adjust the amount of light that is focused under the specimen being observed. A diaphragm is typically found on higher-power microscopes versus less expensive or toy models. The diaphragm is located directly under the stage or platform where user places the specimen or slide.

Explanation:


Related Questions

Frank has an eraser It has a mass of 4g and a volume of 2ml What is its density hint Density equals mass and volume

Answers

Answer:

its 16ml                                                                        

Explanation:

Answer:

it is 16ml

Explanation: I just want to help and get points‍♀️

I will brainly
And 5 star rate

Answers

THE ANSWER IS AGREEEEE!
......

Answer:

agree

Explanation:

you cannot undo the reaction when you bake the cake

Which of the following statements best defines the Law of Conservation of Mass?
Mass cannot be created but it can be destroyed under extreme presures
Mass cannot be conserved during a chemcial reaction: a little bit of mass is always lost
The mass cannot be created nor destroyed
Mass can be created and destroyed

Answers

Answer: mass cannot be created or destroyed.

Explanation:

Energy cannot be created or destroyed and mass is an energy!

Answer choice C

The Law of Conservation of Mass states Mass is neither created or destroyed in chemical reactions. It’s on Google as well.

Which statement describes a chemical property of gasoline?

O A. It melts at -57°C.

O B. It is highly flammable.

O C. It is a clear liquid.

O D. It has a density of 0.7 g/cm3.

Answers

The answer will be B
B is the answer to the question

What two objects transmit light?

Answers

Answer:

Water, and metal.

Explanation:

Air, glass and water are common materials that are very good at transmitting light. They are transparent because light is transmitted with very little absorption. Translucent materials transmit some light but are not completely clear.

1.Write the chemical formula for the ionic compound formed by each pair of ions.

a.Na+and Br−

b.Mg2+and Br−

c.Mg2+and S2−

d.K+and Cl−

e.Mg2+and Cl−

f.Li+and N3−

2. Noel created two binary ionic compounds using sameCation and two different anions -MgO and MgCl2Now ,Can you create two binary ionic compounds withTwo different cations and same anion

PLEASE HELP FAST !!

Answers

Answer: a

Explanation:

Jessica is traveling from Miami, Florida, to Chicago, Illinois. Using the map, tell what the land will be like during the first half of her trip.



The elevation will be high.
The elevation will be low.
The land will be mountainous.
The land will stay below sea level.

Answers

The land will be high

Explanation:
The elevation would be high

I have 7 more questions left :’)

Answers

A, B for the first two
The 3rd question ranks: XZYW

What is radiation?????????????

Answers

Answer:

Radiation is the emission of energy through space in the form of particles and/or waves. Nuclear reactions are very different from chemical reactions. In chemical reactions, atoms become more stable by participating in a transfer of electrons or by sharing electrons with other atoms.

Radiation is said to be the transfer of heat between two objects without any medium between them , that can help them in heat transfer . Hence radiation is said to be the direct transfer of heat between two objects . For example the heat we get from the sun can be said to be from radiation as there is nothing between us and the sun that is helping the sun's heat reach us . The sun's heat reaches Earth directly . This is an example of radiation; which is a type of heat transfer .

One atom of carbon _____.

has four electron shells
is part of all inorganic compounds
forms a special shape called a tetrahedron
can bond with up to four other atoms

Answers

Answer:

One atom of carbon:

does not has four electron shells

cannot  form a special shape called a tetrahedron

is not part of all inorganic compounds

so only right ans left: can bond with up to four other atoms

(One atom of carbon)

1. Does not have four electron shells.

2. Cannot form a shape called a tetrahedron.

3. It is not part of of all inorganic compounds.

4. Only the atoms on the right and left can bond with any other four.

I will brainly
And 5 star rate
Asapp

Answers

Answer:

Agree

Hope this helps

Compound: ________________
. Found in saltpeter in soil; contain nitrogen (N)

Answers

Potassium nitrate

Potassium nitrate is one of several nitrogen-containing compounds collectively referred to as saltpeter or saltpetre. Major uses of potassium nitrate are in fertilizers, tree stump removal, rocket propellants and fireworks. It is one of the major constituents of gunpowder (black powder).

Answer:

Potassium nitrate or KNO3

Explanation:

Choose all the answers that apply.

Which of the following are physical properties?

flammability
hardness
magnetism
boiling point
density

Answers

Physical properties are boiling point, density, hardness,and magnetism.
Physical properties on your list would include hardness, magnetism, boiling point, and density.

Select all that apply. Wire is typically made out of metal because metal

Question 10 options:

Is malleable


Is ductile


Is brtittle


Conducts electricity

Answers

The correct answer is conducts electricity.

Metal is a really good conductor and is used in different electronics. It is also ductile, meaning it can be pulled into a thin wire.

Hope you have a wonderful day:)

Wire is typically made out of metal because metal is ductile and conducts electricity.

Ductility is the property of metal which makes it easy to be stretched into wire when drawn without breaking. This is a great feature for wires.

Conductor of  electricity : The ability for a material to allow electricity to pass through it with ease shows it is a good conductor of electricity.This is also a great feature for wires.

The transition metal, copper is usually  preferred for the manufacture of electrical wires This is because apart from being thermal resistant and cheap, it is very ductile and a good conductor of  electricity.

See more on the property of metals to make wires :https://brainly.com/question/13854828

How do you enter the density into the calculator?

A. volume (cm3) / mass (g) =
B.mass (cm3) / volume (g) =
C.mass (g) / volume (cm3) =
D.mass (g) X volume (cm3) =

Answers

Mass (cm3)/Volume (g)

I will brainly
And 5 star rate

Answers

The answer is Agree :)
The answer is agree :)

You know the drill by now-

Answers

Answer:

distance   time

Explanation:

Answer:

First box : Distance

Second Box: Time

Explanation:

<3

most of the substances around us are ________

compounds
free atoms
pure elements

Answers

Answer:

free atoms

Explanation:

Answer:

Compounds is the answer i think

Explanation:

A compound consists of two or more kinds of atoms.

1. Explain what the process of respiration is.
2. List at least 6 of the organs or structures which exist in the
respiratory system.
3. When we exercise, why do we breathe harder?

Answers

Answer:

The process of respiration is breathing

Explanation:

1. The process of respiration is inhaling oxygen and exhaling carbon dioxide.

2. Lungs, Bronchus, Trachea, Larynx, Pharynx, Bronchiole, and Pulmonary Alveolus

3. Our bodies use more oxygen which produces more carbon dioxide. To fulfill the body's needs, your breathing has to increase from about 15 times a minute to about 40–60 times a minute.

Which of the following descriptions matches the motion shown in the graph.



A person leaves home and slows down for a pedestrian.


A person leaves home, picks up speed, and then stops at a red light.


A person is parked at parking lot and then speeds off.


A person walks down the block at a steady speed.


If I already asked this but please help ;v;

Answers

Answer:

A person leaves home, picks up speed, and then stops at a red light.

Explanation:

Which answer one
(A Carbon dioxide Carbon dioxide enters their leaves from the atmosphere.)
( B Carbon dioxide enters their leaves from the atmosphere.)
(C Carbon dioxide enters their roots from the soil.)
(D Carbon dioxide is produced in a chemical reaction inside their mitochondria.)

Answers

Answer:

B) Carbon dioxide enters their leaves from the atmosphere.

Explanation:

Answer: I think the answer is A

Explanation:

Is this right?
...........

Answers

Yes u are very right GOODLUCK!

Why is rain likely when warm, moisture-laden air meets cold air? A) The lighter warm air will rise and cool down, causing condensation and rain. B) The cold air moves faster and pushes the warm air away, causing condensation and rain. Eliminate C) The moisture in the warm air condenses on contact with the cold air, causing rain to fall. D) The cold air mixes with the warm air, reducing its temperature causing moisture to condense.

Answers

Answer:

B) The cold air moves faster and pushes the warm air away, causing condensation and rain.

The answer is most likely B

Which of the following represents two molecules of carbon dioxide?

C 2O 2
CO 2
2C 2O 2
2CO 2

Answers

Answer:

CO 2 is the correct answer.

Explanation:

Answer:

Co2

Explanation:

How does the diaphragm aide in breathing?
A. When the diaphragm contracts, the lungs expand and allow
oxygen to enter
B. When the diaphragm relaxes, the lungs expand and allow
oxygen to enter
C. The diaphragm does not work with the respiratory system

Answers

It’s A I’m %99.999 sure
The answer is A hehe

The chemical symbol for sulfuric acid is H2SO4. How many atoms are contained in each molecule of sulfuric acid?
a.
3
c.
6
b.
5
d.
7

Answers

C.6

Look at it as H2 So4
H2 two atoms of that element
So4 four atoms of that element
And then up and you get six

How do you think the presence of farms will affect the oxygen concentration in the ponds? im in sixth grade so i can't really comprehend to much of words lik algae or my teacher will ask me how i got educated on the topic

Answers

Answer:

The more farms the less the oxygen concentration levels. Farmers use fertilizers to increase crop growth. When algae die, bacteria break down their remains, using up the dissolved oxygen in the water. The rapid loss of oxygen, or eutrophication, can kill fish and other wildlife living in the pond or stream.

Explanation:

Answer:

The more farms the less the oxygen concentration levels. Farmers use fertilizers to increase crop growth. When algae die, bacteria break down their remains, using up the dissolved oxygen in the water. The rapid loss of oxygen, or eutrophication, can kill fish and other wildlife living in the pond or stream.

Pls help this is due in 5 mins!!!! Brainlest to the best answer and 20 points

Every Cell in the body requires oxygen for respiration so that sufficient energy can be produced. Carbon dioxide, a waste product, is also produced and needs to be removed.
Therefore, the levels of both gases must be regulated. How does this explain the changes in our pulse rates

Answers

Answer:

Your pulse will go higher or lower, This explains the changes in our pulse rate because, our heart is having to work twice as hard. Our heart is having to work twice as hard because while its producing oxygen its also getting rid of the Carbon Dioxide. while you are jogging or doing any physical activity than your body requires alot of energy and produce a lot of carbon dioxide which causes the heart to beat fast as to remove co2 and take o2 from the blood leading to higher rate of pulse. on the secon hand if you are sedentary , consumption and production of o2 and co2 respectively will decrease leading to the slow beating of heart leading to low pulse

Explanation:

It's the drawing axis, this is due in some hours so pls hurry.

Answers

Answer:

What are we supposed to do

Explanation:

Answer:

Ummm... wdym... comment

                                    ↓

Explanation:

The movement of rocks and soil is an example of

erosion

weathering

deposition

2.

How does alternate freezing and thawing of water cause weathering to occur?

Freezing chemically alters the rock surfaces

Water expands when it freezes and cracks rocks open

Thawing causes rock particles to move from place to place

3.

How can you determine if a mountain valley has been created by a glacier?

It is V-shaped

It is U-shaped

It is irregularly shaped

Answers

Answer:

1. C (deposition)

2.  C (Thawing Causes rock particles to move from place to place)

3. Glaciers were moving along, right? so it has to be U shaped since it was a big hunk of ice moving around lol ( my backyard was formed by a glacier so)

brainliest ? :')

Answer:

n

2.

How does alternate freezing and thawing of water cause weathering to occur?

Freezing chemically alters the rock surfaces

Water expands when it freezes and cracks rocks open

Thawing causes rock particles to move from place to place

3.

How can you determine if a mountain valley has been created by a glacier?

It is V-shaped

It is U-shaped

It is irregularly shaped

Explanation:

It is U-shaped

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