How does the air we inhale compare to the air we exhale?
A. The air we inhale has the same percentage of oxygen as the air we exhale.
B. The air we inhale has a greater percentage of oxygen than the air we exhale.
C. The air we inhale has the same percentage of carbon dioxide as the air we exhale.
D. The air we inhale has a greater percentage of carbon dioxide than the air we exhale.
Answers
Answer:
B. The air we inhale has a greater percentage of oxygen than the air we exhale.
Explanation:
First, inhaled air contains about 21% oxygen. Some proportion of this oxygen is used to oxygenate the blood in the alveoli of the lungs for eventual use in cellular respiration. Hence, the proportion of oxygen in exhaled air will be significantly lesser than the proportion of oxygen in inhaled air. Indeed, exhaled air contains about 16% oxygen.
On the contrary, the air we inhale has a lesser percentage of carbon dioxide (0.04%) than the air we exhale (4.4%) due to the additional carbon dioxide produced as a byproduct of cellular respiration—which must be excreted by the lungs.
Related Questions
Which of these organisms is not a chordate?
earthworm
snake
sea squirt
human
Answers
hope this helped.
hich of the following best explains how the circulatory system works with the respiratory system for gas exchange with cells?
Answers
Answer:
Arteries exchange gases with blood to bring back oxygen to cells and carbon dioxide back too the lungs
Explanation:
Blood and oxygen are circulated throughout the body via the circulatory and respiratory systems working together. The trachea, bronchi, and bronchioles transport air into and out of the lungs. The pulmonary arteries and veins, which attach to the heart, transport blood into and out of the lungs.
what method of controlling the python population do you believe would be
most effective? Create a plan based on your chosen method.
Answers
Answer: Well i think that you should see what kind of impact they have on the enviorment then you see what you can to regulate that
second you see what you can kind of tools you can use to regulate that
Explanation:
Answer: snake purge or snake hunger games jkjk
i would say see the impact and try to control the food source but i am not really sure
one product was O2 (oxygen gas). What was the evidence of this gas?
Answers
Winds often blow loose topsoil away, causing erosion. Planting grass or trees on the soil can prevent this erosion.
Which of the following best describes how this solution works?
A.
The roots of grasses and trees anchor the soil and prevent it from blowing away.
B.
The dead remains of grasses and trees cement the soil to the ground and prevent the wind from blowing it away.
C.
Grasses and trees create new soil that replaces the soil lost to the wind.
D.
The leaves of grasses and trees anchor the soil to the ground and prevent it from blowing away.
Answers
Answer:
A: The roots of grasses and trees anchor the soil to the ground and prevent it from blowing away.
Explanation:
The tree roots prevent soil erosion because they keep the soil strong and binded to the land.
1. What kinds of pollution do you know? Which is the worst? Discuss in group.
2. What are fossil fuels? Give examples. Where are they used? Can they be replaced?
3. Some factories dump waste water in rivers and ocean. How can we prevent this?
4. People throw away tons of garbage everyday. How can we reduce the amount of garbage?
5. Do you drink bottled water? Why or why not? What is its effect on the environment?
pls 3-5 sentence and then explain briefly the answer. ty
Answers
Answer:
1. There's air pollution, water pollution, noise pollution, and light pollution. The worst pollution is air pollution because it can cause severe health problems like respiratory diseases or even cancer.
2. Fossil fuels are resources that are formed from the remains of dead plants and animals. An example would be coal, oil, and natural gas. These fuels are used to generate electricity, power vehicles, heat homes and buildings. Yes, there many other energy sources that can replace fossil fuels.
3. One way to prevent factories from dumping waste water in rivers and oceans is to implement stricter regulations and penalties for those who violate them.
4. One of the best ways to reduce the amount of garbage is to reduce, reuse, and recycle.
5. Yes, I drink bottled water because it's more water to drink from a bottle and its effect on the environment is recycling and being reused.
1. Pollution can be of many types such as air pollution, water pollution, noise pollution, and land pollution. In my opinion, air pollution is the worst because it affects people's health and can cause breathing problems, heart diseases, and even cancer. Discussing this issue in a group can help us understand different perspectives and find solutions to reduce pollution.
2. Fossil fuels are non-renewable sources of energy that are formed from the remains of dead plants and animals. Examples of fossil fuels include coal, oil, and natural gas. They are used to generate electricity, fuel vehicles, and heat homes. However, they are a major contributor to air pollution and climate change. Fossil fuels can be replaced by renewable sources of energy such as solar, wind, and hydro power.
3. Factories dumping waste water in rivers and oceans can have a negative impact on aquatic life and the environment. To prevent this, factories can treat their waste water before discharging it into the environment. Governments can also enforce strict regulations and penalties for factories that violate environmental laws.
4. To reduce the amount of garbage, we can follow the three R's - reduce, reuse, and recycle. We can reduce the amount of waste we generate by using reusable bags, bottles, and containers. We can also compost organic waste such as food scraps and yard waste. Recycling can also help reduce the amount of garbage by turning waste into new products.
5. I try to avoid drinking bottled water because it generates a lot of plastic waste that can take hundreds of years to decompose. Plastic waste can also harm wildlife and pollute the oceans. Instead, I use a refillable water bottle and fill it with tap water. Tap water is safe to drink in most developed countries and can be a more sustainable choice.
Waves washing sand onto land until a beach is formed is called
a erosion
b deposition
c rock build up
d weathering
Answers
Answer:
b
Explanation:
deposition!
Look at the diagram of the rock cycle below.
Which part of the cycle is missing?
A.
sedimentation
B.
melting
C.
crystallization
D.
mineral integration
Answers
it’s melting
From the diagram of the rock cycle the missing part is ( B ) ; Melting
Magma is a hot liquid/semi-liquid rock that is usually formed under the earth due to high pressure and temperature present in the inner core of the earth. magma is obtained by the melting down of existing rocks ( Igneous, sedimentary and metamorphic rocks ) under high pressure and temperature in the earths core.
Magma is released to the earth surfaces during volcanoes therefore the missing term in the rock cycle is melting
Hence we can conclude that from the diagram of the rock cycle the missing part is Melting.
Learn more : https://brainly.com/question/23661578
please answer the questions below
Answers
1. The particles will speed up as they gain more kinetic energy from their surroundings and try to escape. They will collide with the balloon more and cause gas pressure which over time will cause the balloon to explode.
2. The particles will slow down
3. It has more density unlike water which expands when it’s frozen. Normally a liquid has more volume and less density when heated.
4. 10°C 50°F
5. 0°C 35°C/36°C ( trick question it’s not 10 degrees less Fahrenheit but Celsius for both)
6. The air particles slow down, losing their energy to the surroundings in an attempt to change state.
I'LL GIVE BRAINLIEST: Maria is camping when she starts to smell smoke. She turns on her radio and hears that a forest fire is heading her way. How can Maria's organ systems interact to help keep her safe? Include at least FIVE organ systems in your response.
Answers
Answer:
nose which detected the smell of the smoke
eyes which can see the direction of the fire
ears which hears the forest fire is heading her way
skin which can feel the hotness of the fire heading her way
tongue which helps her contact (without tongue you can't speak)the near by people
Explanation:
Question
What is one function of the nervous system in humans?
Responses
To transport materials throughout the body.
To bring in oxygen and expel carbon dioxide.
To respond to stimuli in the environment.
To digest food and absorb nutrients.
Answers
50 POINTS!
Energy is transferred into the ecosystem when
1.when bacteria absorbs nitrogen from other organisms
2. dead organisms decay and form organic matter
3. rodent prey on invertebrates
4.plants grow from the soil
Answers
Answer:
2
Explanation:
Energy is transferred between organisms in food webs from producers to consumers.
The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.
Answer: between organisms in food webs from producers to consumers.
Explanation:
Can someone help me please?
Select trachea or larynx
Answers
Answer:
air which we breathe enters the lungs through the larnyx
Explanation:
The air that we breathe in enters the nose or mouth, flows through the throat (pharynx) and voice box (larynx) and enters the windpipe (trachea).
Answer:
trachea
Explanation:
Which of the following trends can be observed when moving down a column in the Periodic Table?
The atomic mass decreases.
The number of valence electrons remains the same.
The number of orbitals decreases.
The possible number of bonds formed decreases.
Answers
Answer: B valence electrons decreases
Explanation:
What is the name given to the
grouping of the most similar
organisms and what makes
them the most similar?
Answers
Moths use light from the moon to help them navigate. An artificial light is brighter than moonlight, so the moths move toward the light instead of the moon.
In this case, seeing the bright light is the _____________, and the ______________ is moving toward the light.
Question 20 options:
response; stimulus
stimulus; response
Answers
A biome is determined by ______, _____, and _____
climate, latitude, weather
plants, precipitation, seasons
climate, latitude, elevation
evaporation, temperature, animals
and
Answers
Answer:a is the answer
Explanation:
pls pls answer this question i need it and pls no silly answer or i will have to report question in the pic
Answers
Answer:
d
Explanation:
Melissa reads about the Burmese pythons that are destroying the native wildlife in the Florida Everglades. The baby pythons are brought into the United States and sold as pets. Some owners release them into the Florida wetlands when they do not want the snakes as pets any more. The pythons breed, and since they have no natural enemies, they have multiplied uncontrollably. Some of the native wildlife are near extinction because the pythons have preyed on them. People introducing non-native predators is one cause of extinction.
What are other causes of extinction? CHOOSE THREE THAT APPLY.
A. climate change
B. competition
C. mutation
D. disease
lizard bird octopus grasshopper whale human Homologous structures
No Homologous structures
Answers
Answer: A
Explanation:
Answer:I might be wrong but A B and D
Explanation: I’m sorry if it’s incorrect
Question 4 (1 point)
Solar panels that heat water use the Sun's radiant energy to reduce the need for non-renewable energy sources.
-O True
O False
Answers
Answer:
The Correct answer is TRUE
A 2 column by 2 row table. Column 1 is titled Planet with the following entries: A, B. Column 2 is titled Length of a Day in hours with the following entries: 16 hours, 1,408 hours.
Which planet is an inner planet, and which one is an outer planet? Explain your answer.
Answers
Planet A is an outer planet and planet B is an inner planet because planet A has a shorter spin.
What are outer planets?There are four outer planets in our solar system with a density of fewer than 2 grams per cubic centimetre. Jupiter and Saturn are composed primarily of helium and hydrogen and Uranus and Neptune are composed of ice, rock, hydrogen and helium.
These four outer planets have longer orbits and take a longer time to revolve around the sun. These have shorter spins and therefore the length of their day is shorter.
Also, since the outer planets are extremely large in size and are mostly composed of gases, they are also called gas giants.
Another characteristic feature of these planets is the presence of a planetary ring around the planet.
The inner planets are denser. They have shorter orbits and require less time to revolve around the sun. The inner planets have a longer spin time and thus their days are longer.
A day on Mercury is 1408 hours and a day on Neptune is 16 hours.
Therefore, planet A is an outer planet and planet B is an inner planet.
Read more about planets, here
https://brainly.com/question/12732828
#SPJ5
Answer:
Sample response: Planet A is an outer planet, and planet B is an inner planet. Inner planets rotate slowly, so they take more time to complete a rotation. Outer planets rotate faster, so they take less time to complete a rotation.
Explanation:
Why is it difficult for people to preserve nature by giving up the practice of fracking?
(don't use g0ogle please!)
Answers
Answer: Were to good at it
Explanation:
Because people have been doing it for a millennia, we cant really stop. and because romance revolves around it, we cant stop and wont.
ITS DUE IN 13 MIN HELP
Is rainwater a pure substance or a mixture?
please explain
Answers
Rainwater is made up of water and other soluble substances and gasses.
True or False: The Calvin cycle is also known as the “light-dependent reaction” because it needs sunlight.
Answers
Answer:
false
Explanation: The Calvin Cycle, or light independent reaction, does not utilize sunlight as an input. During the light independent reaction, or the Calvin Cycle, carbon fixation first occurs. CO2 produced during the light dependent reaction reacts with RuBP, ultimately producing PGA.
Have a nice day!
share diagrams from your notes of a labeled plant and animal cell
Answers
Mechanical energy can take on many forms, but these different forms can be categorized as either potential energy or energy of motion. The height an object is dropped from has an effect on the amount of energy in the object. Let’s conduct an experiment to see the effect.
:How does the height of an object affect the amount of mechanical energy it contains?
1:Variables What is the test variable?
Answers
The height of an object is crucial to the amount of energy something has because the higher up it is the most potential energy it has and kinetic energy it could have.
For example, if the height of a basketball was just a couple inches off the ground, it would not have a large amount of potential energy because because there is not much of a fall between the ball and the ground. However, if the ball was higher, there would be more potential energy because there is more room to fall.
---
"What is the test variable?"
The test variable, or independent variable in this case would be the height, as the scientist is changing the height in order to get different results in the total mechanical energy, which would be the dependent variable.
help please!!! In the nucleus, what genetic material is found there? What is the function, or job of the Endoplasmic Reticulum (ER)? Describe the function, or job of a vacuole. In humans, we have cells that are organized into these three SPECIALIZED groupings. What are they?
Answers
Answer: Function
Explanation:
IT MAKES SENSE!!!!
- nucleus contain chromatin which consists of a mixture of dna & protein
what is the function / job of ER?
- both the smooth & rough ER consists of ribosomes which help to synthesise (produce) proteins for the rest of the cell to function
what is the function / job of vacuole?
- (animal cell) small & many , help sequester waste products
- (plant cell) single large central , help maintain water balance & support cell turgidity , consists of cell sap which contains dissolved substances such as SMA (sugars , mineral salts , amino acids)
* vacuole in plant cells are surrounded by tonoplast
- basically for storage of nutrients
what are the 3 cells in specialised groupings?
- RBC (red blood cell) , WBC (white blood cell) , platelets
- these cells exist in the human circulatory system & each of them carry out a different & specific function
hope this helps :)
45 POINTS FOR A CORRECT ANSWER!!!! No links though, those are super sus and I don't like those. If you do something sus I will report you. :) But please help me! I'm super confused and a thorough explanation would really help! Thanks to anyone who answers in advance!
A specific type of bacteria reproduces through binary fission every two hours. If there are seven bacteria to begin with, how many bacteria will there be after four hours?
Answers
Answer:
28
Explanation:
This is because every 2 hr 4 bacteria "are made" so 7 bacteria 2 hrs later
7x4=28
What is an ecosystem and what are its parts and functions?
What can challenge an ecosystem?
What are the roles of the water and food cycles in an ecosystem?
Answers
An ecosystem is a structural and functional unit of ecology where the living organisms interact with each other and the surrounding environment. In other words, an ecosystem is a chain of interactions between organisms and their environment.
Answer:
An ecosystem consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows. Energy enters the system through photosynthesis and is incorporated into plant tissue.
Parts & Functions Of an Ecosystem
The functions of the ecosystem are as follows: It regulates the essential ecological processes, supports life systems and renders stability. It is also responsible for the cycling of nutrients between biotic and abiotic components. It maintains a balance among the various trophic levels in the ecosystem.
What are the major parts of an ecosystem? An ecosystem includes soil, atmosphere, heat and light from the sun, water and living organisms.
Challenges For An Ecosystem
Some of the primary challenges include, but are not limited to, habitat loss, climate change including sea level rise, and levee stability.
The Role and Function of Water
Water cycle have several impacts on the nature - it takes part in weather, erosion and watering plants.
In short term it is positive, to see green grass and trees, not just bonedry dead nature.
In longer term we can see weather changing, clouds made of tiny drops of water coming and leaving - changing humidity (important for fungi and liches), local temperature changes etc.
Longest takes erosion and it is mostly about changing soils structure and nutritients for plants. Erosion can be also seen on riverbeds - in soft rocks/soils being wider, in harder rocks narrow. Also sedimentation in delta is important for development of border ecosystems.
Water makes organisms live and rocks move, that is the importance of water cycle.
Have a wonderful day! :-)
heyyy can someone pleasee fill in the blankss
Answers
Answer:
the moon is one-fourth the size in earth diameter (write fraction in the blank.) the distance from the moon to the earth is 385,000 earth diameters. one of the limitations of this model is that it does not describe the movement of the earth and the moon in each of their orbits. complete the sentences below to add that information to the model it takes 27 days to orbit around the earth. the moon orbits earth in a Circle
answer 1: 1/4
answer 2: 30
answer 3: about 27 days
answer 4: it’s orbiting in a circle... prograde direction!
i hope that was easy on the eyes to read, feel free to message me for any more explanation or clarification! ♡