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:
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.
Related Questions
Neutron stars are incredibly dense. Describe a neutron star in terms of a sugar cube.
Answers
Answer:
A neutron star has a density 3 E^17 kg/m^3. One sugar cube is half an inch (1.27 cm) long per side. Which makes the volume of the sugar cube to be 2.05 E^-6 m^3. If the sugar cube has the density of a neutron star, the total mass it should contain is 615 billion kg.
Explanation:
Is every solute the same in terms of solubility?
Answers
Answer:
Yes, they are always somewhat soluble.
Explanation:
Darwin observed that finches on the Galapagos Islands have different kinds of beaks.
Which conclusion is best supported by his observations?
Finch 2 is adapted to survive dry weather conditions.
Finch 3 is adapted to survive dry weather conditions.
Finch 1 is adapted to eat small insects that live in tiny holes.
Finch 4 is adapted to eat small insects that live in tiny holes.
Answers
Answer:
The answer would be D, finch 4 is adapted to eat small insects that live in tiny holes.
Explanation:
did the test!!
Explanation:
Use process of elimination
A and B both talk about weather which would have nothing to do with a birds beak.
C. Finch 1 would be unable to eat a small insect from a small hole due to its large beak.
D. The only choice left and correct because Finch 4 is able to eat small insects that live in tiny hole because of their beak.
Hope this helps!! And let me know if you have any questions about the strategy I used to find the answer.
How to work out the relative mass of potassium? What is the calculation? ( explained very easily )
Answers
Answer:
39
Explanation:
Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.
———————————
(1/12)th Mass of one C12 atom
1. Using D10W and a vial of NaCl 4 mEq/mL, how many mL of NaCl are needed to prepare 250 mL of a
D10/NS solution?
a. 4.8mL
b. 9.6ml
c. 19.6mL
d. 154mL
Answers
To prepare 250 mL of a D10/NS solution using D10W and a vial of NaCl 4 mEq/mL, you would need 9.6 mL of NaCl. Normal saline (NS) contains 154 mEq/L of sodium chloride (NaCl). To prepare 250 mL of NS, you would need 250 mL * (154 mEq/L) = 38500 mEq of NaCl. Since the vial of NaCl contains 4 mEq/mL, you would need 38500 mEq / (4 mEq/mL) = 9625 mL = 9.6 mL of NaCl. So the correct answer is b. 9.6ml.
Tell me step by step how to do 3/5 divided by 5.
Answers
Answer:
3/25
Explanation:
3/5 divided by 5.
Flip the reciprocal of 5.
3/5*1/5.
3/25.
Hope this helps plz mark brainliest :D
Answer:3/25
Explanation:divide
pls help me with this science question
Answers
Answer:
D because as the seafloor grows wider, the continents on the opposite sides of the ridge move away from each other
An acid solution contains more (hydronium, hydroxide) ions than (hydronium, hydroxide) ions.
Answers
Answer:
An acidic solution contains more hydroxide ions than hydroxide ions.
Explanation:
Answer:
An acidic solution contains more hydroxide ions than hydroxide ions.
Explanation:
Friction is a force that opposes motion. When friction is present, heat is generated.
According to the law of conservation of energy, which of the following statements is true about the energy associated with friction?
a. Energy is destroyed by the force of friction.
b. Energy is created with friction.
c. Some of the energy is converted into thermal energy.
d. Most of the energy is transformed into chemical energy.
Answers
Answer:
I think it is: Some of the energy is converted into thermal energy.
Explanation:
Please let me know if I am wrong so I can fix it :)
To solve this , we must know the concept behind law of conservation of energy. Therefore, the correct option is option C that is Some of the energy is converted into thermal energy.
What is aw of conservation of energy?Energy cannot be generated or destroyed, but it may move from one form to another, according to the physical rule of conservation of energy. The total energy of an isolated system remains constant or is conserved within a certain frame of reference.
Friction is a force that opposes motion. When friction is present, heat is generated. According to the law of conservation of energy, the statements that is true about the energy associated with friction is Some of the energy is converted into thermal energy.
Therefore, the correct option is option C that is Some of the energy is converted into thermal energy.
To know more about law of conservation of energy, here:
https://brainly.com/question/12050604
#SPJ2
piece of roasted salted fish is put in a mouse trap. explainwhy the mouse comes to the trap
Answers
Answer: Food
Explanation:
The rat smells the food or sees the food it goes towards the food to eat it.
A green box contains a blue box and a pink box. The blue box contains C H subscript 4 + 2 O subscript 2. An arrow then leads in the green box to the pink box, which says C O subscript 2 + 2 H subscript 2 O. Lines lead from labels to parts of the boxes. Label A leads to the beginning of the green box. Label B leads to the + in the blue box. Label C leads to the arrow. Label D leads to the 2 in 2 H subscript 2 O. Label E leads to the end of the pink box.
Identify each part of this chemical equation that describes the burning of methane and oxygen.
B (blue box):
D (number):
E (purple box):
Answers
Answer:
A (the entire green box):
✔ chemical equation
B (the blue box):
✔ reactants
C (the arrow):
✔ reacts to form
D (the number):
✔ coefficient
E (the purple box):
✔ products
Answer:
A chemical equation
B reactants
C reacts to form
D coefficient
E products
Explanation:
hope this helps, the person above me is also correct
What is an ellipse please help)
Answers
In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. As such, it generalizes a circle, which is the special type of ellipse in which the two focal points are the same.
Maybe they might use that math thing for Science.
Which part of the electromagnetic spectrum has the longest wavelengths? radio waves gamma rays infrared light ultraviolet light
Answers
Radio waves is part of the electromagnetic spectrum which has the longest wavelength.
What is Wavelength?This is defined as the distance between corresponding points of two consecutive waves.
Radio waves is a part of the spectrum and has the longest wavelength while gamma rays have the shortest wavelength in the electromagnetic spectrum.
Read more about Radio waves here https://brainly.com/question/69373
Radio waves are the part of the electromagnetic spectrum has the longest wavelengths, hence option A is correct.
What is electromagnetic spectrum?The range of electromagnetic radiation's frequencies, along with the corresponding photon energies and wavelengths, is known as the electromagnetic spectrum.
An example of electromagnetic radiation is radio waves. The wavelength of a radio wave is substantially greater than that of visible light.
Radio waves are widely used by people for communication. Both rectangular and circular antennas are used by this radio tower to send and receive radio frequency energy.
Therefore, in the electromagnetic spectrum, radio waves has the longest wavelengths as compare to other, hence option A is correct.
Learn more about electromagnetic spectrum, here:
https://brainly.com/question/23727978
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Whats the sum of the coefficients in Na2O + AIBr3 = NaBr AI2O3 of all the reactants and products when this equation is balanced?
Answers
Answer:
Answer: 12
Explanation:
\({ \sf{3Na _{2} O +2 AIBr _{3} \rightarrow 6NaBr + AI _{2} O _{3} }}\)
\({ \tt{sum = 3 + 2 + 6 + 1}} \\ = { \tt{12}}\)
Answer:
12
Explanation:
3+2+6+1
A student is pulling a large recycling bin. A teacher fills it with old papers to recycle. What property of the bin changes, and in what way? What does the student have to do to keep the bin moving at the same speed?
Answers
Answer:
the mass use his or her force to keep it at the same speed
Explanation:
electrons are one of the ________, or pieces, that make up an atom
Answers
Answer:
Components
Explanation:
Wish it helps
When the speed of the bottle is 2 m/s, the KE is kg m2/s2. When the speed of the bottle is 3 m/s, the KE is kg m2/s2. When the speed of the bottle is 4 m/s, the KE is kg m2/s2. When the speed of the bottle is 5 m/s, the KE is kg m2/s2. When the speed of the bottle is 6 m/s, the KE is kg m2/s2.
instructions
In this part of the experiment, you will be changing the speed of the bottle by dropping it from different heights. You will use the same mass, 0.250 kg, for each trial, so record this mass in Table B for each velocity. Then, calculate the expected kinetic energy (KE) at each velocity. Use the formula KE = mv2,
where m is the mass and v is the speed. Record your calculations in Table B of your Student Guide.
Answers
Answer:
Based on the given instructions, you need to calculate the expected kinetic energy (KE) at each velocity using the formula KE = mv^2, where m is the mass and v is the speed. The mass is given as 0.250 kg.
Table B: Calculation of Kinetic Energy (KE)
Table B: Calculation of Kinetic Energy (KE)
Speed (m/s)Mass (kg)KE (kg m^2/s^2)20.2500.50030.2500.75040.2501.00050.2501.25060.2501.500
To calculate the kinetic energy at each velocity, multiply the mass (0.250 kg) by the square of the velocity.
For example, when the speed of the bottle is 2 m/s: KE = (0.250 kg) * (2 m/s)^2 = 0.250 kg * 4 m^2/s^2 = 1.000 kg m^2/s^2
Perform similar calculations for the other velocities and record the results in Table B.
Answer:
Explanation:mass of the bottle in each case is M = 0.250 kg
now as per given speeds we can use the formula of kinetic energy to find it
1) when speed is 2 m/s
kinetic energy is given as
2) when speed is 3 m/s
kinetic energy is given as
3) when speed is 4 m/s
kinetic energy is given as
4) when speed is 5 m/s
kinetic energy is given as
5) when speed is 6 m/s
kinetic energy is given as
Please help me por favor :'(
Answers
How do you think heat moves through Earth's atmosphere?
Answers
Answer:
Conduction, Convection, Radiation.
Explanation:
Heat moves through Earth's atmosphere by Conduction, Convection, and Radiation.
Conduction is when heat is transferred directly through a substance. For example if you put you hand on a hot plate or pan, the heat traf=nfer is called conduction.
Convection is heat transferred through fluids. For example heating water.
Radiation is the transfer of heat through radiation waves. For exapmle the heat, warmth we get from the sun.
Hope this helps :)
In an electrical wire, if instead of copper, plastic wire is used. Would it conduct electricity?Justify your answer.
Answers
Answer:
No, a plastic wire would not conduct electricity. This is because plastic is an insulator that does not allow electric current to flow through it. In a wire, electrical conductivity is provided by the movement of charged particles - typically, electrons. Copper is an excellent conductor of electricity because it has a high number of free electrons that are not bound to atoms and can move through the wire very easily. However, in a plastic wire, the tightly bound electrons of its atoms do not allow for the free flow of charges, thus preventing the passage of electric current.
how are thing measured using the metric system
Answers
Answer: The metric system is a system of measurement that uses the meter, liter, and gram as base units of length (distance), capacity (volume), and weight (mass) respectively. To measure smaller or larger quantities, we use units derived from the metric units.
HELP ME THIS IS 1 MONTH OVER DUE PLS HURRY
Choose all the statements below that are true.
1) Temperature has no effect on whether water can be found in solid or liquid form.
2) Water does not exist in solid and liquid forms.
3) Water can be solid when it is very cold (below 32 degrees Fahrenheit/0 degrees Celsius).
4) Water can be liquid when it is warm (above 32 degrees Fahrenheit/0 degrees Celsius and below 212 degrees Fahrenheit/100 degrees Celsius).
Answers
2false
3true
4true
Calculate the mass of a liquid with a density of 4.7 g/mL and a volume of 15 mL. pls help me
Answers
Answer:0.31
Explanation:that the answer
Answer:
biraz naruto izle
Explanation:
Choose 1 type of electromagnetic wave. Write 3 sentences about that type of wave. Describe the wave's frequency and wavelength as well as what the wave is used for in the real world.
Answers
Answer: Ultraviolet
Explanation:
The video attached will help you remember the Electromagnetic Spectrum; just search it.
Ultraviolet has a higher frequency than visible light but a lower frequency then x-rays. Ultraviolet has a wavelength range of 100-400 nm.Ultraviolet can be used in detecting forged bank notes.
Answer: Radio waves
Explanation :
There are seven types of electromagnetic waves are present in nature .
Radio waves , microwaves , infrared waves , visible light , ultraviolet waves , X -rays , Gamma rays .
IN GIVEN QUESTION ONLY ASKED ABOUT ONE ELECTROMAGNETIC WAVE, SO I WILL BE EXPLAINED ABOUT RADIO WAVE .
Radio waves :
1) Radio waves are the electromagnetic wave with the longest wavelengths.
2)These waves are a type of electromagnetic radiation with frequencies ranging from 300 GHz to 3kHz.
3) The wavelength is 1mm at 300 GHz and 100 km at 3kHz .
Radio waves are used for communication.
Q: What property of propane does Rodriguez change using the burner? Support your answer with evidence from the text.
T: The wind is starting to blow stronger, and when you’re riding in a basket under a hot air balloon, just 400 feet above ground, that’s not necessarily a good thing. Keith Rodriguez looks to the horizon and squints. He had planned to take off from Scioto Downs, a horse racetrack south of Columbus, Ohio, fly a few miles north, and land his balloon in a barren cornfield next to his pickup truck.
Then the wind changed. Instead of a light breeze from the south, now Rodriguez’s bright red balloon is getting hit by stronger, colder winds headed west. He has plenty of propane fuel in his tank—he probably could ride the wind halfway to Pennsylvania. But that would be dangerous. Rodriguez’s choice of landing sites just became very limited. As the balloon switches direction and floats east, everything below becomes a wide carpet of suburban sprawl—big-box stores, major highways, and strip malls. Beyond the stores lie forests.
The only factor in Rodriguez’s favor is that it’s early, just after 7 a.m. The highways are filling up with people driving to work, but otherwise the morning is quiet and still.
“Oh boy,” Rodriguez thinks. “If I don’t land, like now, this could get bad.”
The balloon has no propeller or engine, so Rodriguez can’t change direction on his own—he’s entirely dependent on the wind. The only thing he controls is altitude. He does this by changing the air temperature inside the balloon.
Sitting on the floor of the wicker gondola are three tanks of liquid propane. The tanks are connected via black rubber hoses to two burners overhead. Each burner is nearly as big as Rodriguez’s head. Rodriguez turns a knob on one side of the burners. This releases propane from a tank into the heating coil, where the liquid propane is heated to a gas and mixed with the air. Then the mixture is ignited by a pilot light. The mixture catches fire, and flames leap two feet high into the balloon.
The balloon rises. Rodriguez has a plan in mind. The flame heats the air inside the nylon balloon. This works on a simple principle: hot air is lighter than cold air. One cubic foot of air weighs about an ounce. If you heat that air by 100 degrees Fahrenheit, its weight drops by about 7 grams. This means every cubic foot of heated air inside Rodriguez’s balloon can lift about 7 grams. Just by himself, Rodriguez weighs 170 pounds, which equals about 77,110 grams. That means he needs about 11,016 cubic feet of hot air just to raise his own body off the ground. This is why hot air balloons are so big—they must trap tremendous amounts of heated air. Rodriguez’s balloon is a common size, trapping about 100,000 cubic feet of air. The balloon is 80 feet tall and 60 feet wide. As Rodriguez gives his short burst of flame, the air inside swirls in complicated, invisible patterns.
To drop in altitude, Rodriguez can pull a cord attached to a parachute valve at the very top of the balloon. Since the hottest air sits at the top, this releases the balloon’s most buoyant air, which makes the balloon descend.
Rodriguez gives the cord a short pull, and the gondola drops a little.
“I don’t have an altimeter, and I can’t really see anything happening inside the balloon,” Rodriguez thinks. “I have to pilot by feel.”
Pushed by the wind, the balloon is flying quickly now. It’s floating over the back wall of a supermarket when Rodriguez grabs hold of the parachute valve cord and gives it a long, hard tug. The balloon drops. Quickly. The hot air balloon is sinking, but still flying forward.
It looks as though it’s about to slam into the edge of the supermarket’s roof, but it sails over it, with only about 15 feet to spare. Still, Rodriguez does not let go of the cord. He drops and drops, right between the light poles of the nearly empty parking lot. Just a few feet above the ground, Rodriguez releases the parachute cord, turns the knob above his head and fires both burners. The steep descent slows. The gondola touches lightly against the asphalt, and then drags to a stop. There are only two people in the parking lot, standing near the entrance to the store. They look toward the balloon, their eyes and mouths open wide in shock.
“That was a little closer than I expected,” Rodriguez says to himself, laughing. “I really needed to land quick.”
Answers
Answer:
The wind is starting to blow stronger, and when you’re riding in a basket under a hot air
balloon, just 400 feet above ground, that’s not necessarily a good thing. Keith Rodriguez looks
to the horizon and squints. He had planned to take off from Scioto Downs, a horse racetrack
south of Columbus, Ohio, fly a few miles north, and land his balloon in a barren cornfield next
to his pickup truck.
Then the wind changed. Instead of a light breeze from the south, now Rodriguez’s bright red
balloon is getting hit by stronger, colder winds from the west. He has plenty of propane fuel in
his tank—he probably could ride the wind halfway to Pennsylvania. But that would be
dangerous. Rodriguez’s choice of landing sites just became very limited. As the balloon
switches direction and floats east, everything below becomes a wide carpet of suburban
sprawl—big‐box stores, major highways, strip malls. Beyond the stores lie forests.
Explanation:
Please help, I’ll give brainliest!
Answers
Answer:
the coefficient of NO3 is going to be 2
Explanation:
Cu+2NO3−+2H2O→Cu2++2NO2+4OH−
Reproduction is NOT essential for the survival of an individual ______________ but is essential for the survival of the _____________.
Answers
Reproduction is not essential for the survival of an individual organism but is essential for the survival of the species.
Answer : Reproduction is not essential for the survival of an individual organism but is essential for the survival of the organism's species.
NEED HELP ASAP NOT REALLY THOUGH
A school bus was stopped. After a short time it was going 55 miles per hour. This is evidence that the school bus
A. had inertia
B. had gravity
C. lost energy
D. had accelerated
Answers
What was one was one important impact of Supreme Court's ruling in Bush v. Gore
Answers
Answer: the answer is b or c
Explanation:
I took it
help me with this I only have one more
1156 g/L
= ________ kg/mL
Answers
The Answer is 0.001156.
1156 g/L = 1.156 kg/L
Since 1 L is equal to 1000 mL, we can convert kg/L to kg/mL by dividing by 1000:
1.156 kg/L = 1.156/1000 kg/mL
1.156/1000 kg/mL = 0.001156 kg/mL
Therefore, 1156 g/L is equal to 0.001156 kg/mL.