Why is it true to say that exhaled air is acidic?​

Answers

Answer 1

Answer:

Because it contains carbonic acid

Explanation:

Carbonic acid is made from dissolving carbon dioxide in water. Since carbon dioxide is exhaled in the lungs, and the exhaled air is moist due to the presence of water molecules from the alveoli, then the carbon dioxide gas will be dissolved in the exhaled air’s moisture rendering it  slightly acidic.


Related Questions

How does the hydroelectric dam picture here impact the environment?

By releasing toxic chemicals in their emissions

By generating Significant heat that artificially warms nearby water

By producing greenhouse gases

By blocking fish migration

Answers

Answer:

By blocking fish migration

Explanation:

By releasing toxic chemicals in their emissions

 Hydroelectrics only emissions are usually, non harmful electromagnetic signals.

By generating Significant heat that artificially warms nearby water

  Possible, but they do not produce much significant heat

By producing greenhouse gases

   No, just no- its magnets that are water moved, no room for greenhouse gasses..

By blocking fish migration

It is a dam, blocking a river, with fish in it.

By blocking fish migration the hydroelectric dam will impact the environment.

Because the emissions they produce include hazardous substances. The only pollutants that hydroelectric power typically produces are electromagnetic pulses that are harmless. By producing a significant amount of heat, which artificially heats the water in the surrounding area.  

Although they do not generate a considerable amount of heat, they are a possibility. Because of the emission of greenhouse gases. No way, absolutely not; the water is propelled by magnets, and there is no place for greenhouse gases. By impeding the movement of fish. There are fish in the river that is being blocked off by the dam.

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F.8.4A - An allele carried on a Y chromosome will affect



A.) all of the female offspring.


B.) some of the male and female offspring.


C.) the male offspring.


D.) none of the offspring.

Answers

Answer:

C.) the male offspring.

Explanation:

Only males have XY chromosomes so therefore it is impossible that a female is affected by a Y allele.

An allele carried on a Y chromosome affects only the male offspring. Hence the correct answer is C.

An allele carried on a Y chromosome will affect the male offspring. This is because females have two X chromosomes (XX) and are therefore unable to inherit Y-linked alleles. Males, on the other hand, have one X and one Y chromosome (XY), and the Y chromosome is inherited from their father. This means that any allele present on the Y chromosome will only be transmitted from father to son, affecting only the male offspring. An example of a trait determined by a Y-linked allele is hairy pinna, which only males can inherit and express. This genetic transmission principle underscores the distinct mechanisms of sex-linked inheritance, contrasting with traits linked to the X chromosome or autosomal traits.

Which of the following is a correctly balanced equation?​

Answers

B. is the answer because the number of moles of the reactants is equal to the number of moles of the products

Answer : The correct balanced equation is,

[tex]2HgO\rightarrow 2Hg+O_2[/tex]

Explanation :

Balanced chemical equation : It is defined as the number of atoms of individual elements present on reactant side must be equal to the product side.

The balanced chemical reaction is,

[tex]2HgO\rightarrow 2Hg+O_2[/tex]

This chemical reaction is balanced reaction because in this reaction, the number of atoms are balanced on both the sides.

While the other equations are not balanced because the number of atoms are  not balanced on both the sides.

Hence, the correct balanced equation is,

[tex]2HgO\rightarrow 2Hg+O_2[/tex]

Explain how and where urbanization occurs

Answers

Urbanization usually occurs when a country is still developing.

Based on the data table which two species are most closely related?

Answers

Answer:

C.) B and C

Explanation:

What happens if an enzyme is denatured? How does that impact the reaction rate?

Answers

Answer:

An enzyme is a biological protein molecule made up of thousands of amino acids. ... Enzymes work consistently until they are dissolved, or become denatured. When enzymes denature, they are no longer active and cannot function.extreme high temperatures can cause an enzyme to lose its shape (denature) and stop working. ... Extreme pH values can cause enzymes to denature. Enzyme concentration: Increasing enzyme concentration will speed up the reaction, as long as there is substrate available to bind to.

Which of these is an exothermic reaction?
A. photosynthesis
B. cooking an egg
C. cellular respiration
D. rubbing your hands together

Answers

I think it might be C because when you are rubbing your hands energy is not released it’s absorbed, cooking an egg the heat from the pan is absorbed by the egg, photosynthesis the plant is taking in energy, and in cellular respiration you release energy

PLEASE HELP ME,

A feedback mechanism that serves to decrease the stimulus and bring a system back to
homeostasis is called a

A. negative feedback mechanism

or

B. positive feedback mechanism ​

Answers

Answer:

A. negative feedback mechanism

Explanation:

A negative feedback implies stimulation towards less change and restoration of the normal state.

A mechanism that serves to decrease the stimulus and bring a system back to homeostasis therefore shall be referred to as a negative feedback mechanism.

This is because homeostasis is the normal state, mechanisms bringing further change to homeostasis can be referred to as positive feedback mechanism and vise versa.

Final answer:

A feedback mechanism that decreases the stimulus and brings a system back to homeostasis is known as a negative feedback mechanism.

Explanation:

A feedback mechanism that serves to decrease the stimulus and bring a system back to homeostasis is called a negative feedback mechanism. This process helps to maintain stability in our body by reversing any deviations from the normal levels. Negative feedback does this by triggering responses that counteract changes, bringing the variable back to a set point. For instance, the maintenance of blood glucose levels is a classic example of a negative feedback mechanism. After eating, blood glucose levels rise, which are detected by the pancreas that releases insulin, thereby lowering the glucose levels back to normal.



Conversely, negative feedback also works if glucose levels are too low; the pancreas releases glucagon to increase the glucose levels. The primary function of negative feedback loops is to prevent physiological variables from going beyond the normal range, essentially turning systems 'off' or 'on' to achieve stability. Hence, negative feedback mechanisms are the predominant system used to sustain homeostasis.

What is the function of the Golgi apparatus?

Answers

Answer:

The job of the Golgi apparatus is to process macro molecule. For example proteins an lipids.

Hope this helped!

Brainliest answer? :)

Answer:

Image result for What is the function of the Golgi apparatus?socratic.org

The Golgi apparatus is an organelle present in most eukaryotic cells. It is made up of membrane-bound sacs, and is also called a Golgi body, Golgi complex, or dictyosome. The job of the Golgi apparatus is to process and bundle macromolecules like proteins and lipids as they are synthesized within the cell.

Explanation:

What is the placenta, and what is its role in fetal circulation?

Answers

The prenatal circulation of blood is different than the postnatal circulation, mainly because the lungs are not in use. The fetus obtains oxygen and nutrients from the mother through the placenta and the umbilical cord. Blood from the placenta is carried to the fetus by the umbilical vein.

Which sentence best describes an ecosystem?

Answers

Answer: D

Explanation:

answer is : an ecosystem is all of the organisms living in a given area

What is the function of the mitochondria?
A.
to secure the nucleus at the center of a cell
B.
to provide energy for the cell
C.
to provide immune defense for the cell
D.
to move materials in and out of the cell

Answers

Answer:

a

Explanation:

Define the role of transport proteins

Answers

Answer:

Transport proteins function in both active and passive transport to move molecules across the plasma membrane. ... These channel proteins are responsible for bringing in ions and other small molecules into the cell. It's important to remember that each channel protein can only bring in a specific molecule.

Explanation:

Answer:

Transport proteins are proteins that transport substances across biological membranes. Transport proteins are found within the membrane itself, where they form a channel, or a carrying mechanism, to allow their substrate to pass from one side to the other.

i think that its correct :)

4. How do ocean currents influence climate? Give an example of such an ocean current.

Answers

The Gulf Stream influences the climate of England. Without the Gulf Stream England would be a cold country.

ocean - Large bodies of water.

current flowing towards equator carry cold water from poles

current flowing towards away from equator carry warm water from poles

Example - Humidity

Let me know if you have any questions

What must the grasses be able to do to survive?
A The grasses must be able to outcompete cacti and yucca plants for shelter from
storms.
B The grasses must be able to outcompete cacti and yucca plants for minerals in
mountain rocks.
C The grasses must be able to outcompete cacti and yucca plants for shade.
D The grasses must be able to outcompete cacti and yucca plants for water.
Page
3
/
18​

Answers

D. Must be able to outcompete cacti and yucca plants for water

Name two ways the bamboo uses the macromolecules it builds

Answers

Answer:

photosynthesis and lipids

Explanation:

Answer:

The correct answer is - structural support and storage for energy.

Explanation:

The bamboo is like most of the other plants produce carbohydrates by the process of photosynthesis. Plants convert glucose by polymerization into starch and polysaccharide for storage as an energy source and cellulose for cell wall structure and support.  

Starch and polysaccharides provide energy by digesting the covalent bonds through the cellular respiration process. cellulose form the cell wall of the plant cells and gives it strength and support.

Thus, the correct answer is - structural support and storage for energy.

HELP!!!! Which of the following correctly relates the porosity, permeability and production of a well in an aquifer?
a. Increasing porosity and decreasing permeability lead to increased production in an aquifer.
b. Decreasing porosity and increasing permeability lead to increased production in an aquifer.
c. Decreasing porosity and decreasing permeability lead to increased production in an aquifer.
d. Increasing porosity and increasing permeability lead to increased production in an aquifer.

Answers

D-Increasing porosity and increasing permeability lead to increased production in an aquifer

Answer:

d. Increasing porosity and increasing permeability lead to increased production in an aquifer.

Explanation:

Underground aquifers are permeable geological formations that allow water to accumulate inside the soil. Depending on how water circulates within the soil, there are three primary types of aquifers: porous, karstic and fissural.

In addition to supplying sufficient water to keep surface watercourses stable (production function), aquifers also help prevent their overflow by absorbing excess heavy rainwater (regularization function).

Which statements describe primary consumers? Check all that apply.

Answers

A food chain is the sequence of who eats whom in a biological community (an ecosystem) to obtain nutrition. A food chain starts with the primary energy source, usually the sun or boiling-hot deep sea vents. The next link in the chain is an organism that make its own food from the primary energy source -- an example is photosynthetic plants that make their own food from sunlight (using a process called photosynthesis) and chemosynthetic bacteria that make their food energy from chemicals in hydrothermal vents. These are called autotrophs or primary producers.

Next come organisms that eat the autotrophs; these organisms are called herbivores or primary consumers -- an example is a rabbit that eats grass

A primary consumer is an organism that feeds on primary producers. Organisms of this type make up the second trophic level and are consumed or predated by secondary consumers, tertiary consumers or apex predators.

What is the main "hitch," or problem, in getting fusion to occur?

Answers

Answer:  working with intense pressure and heat

Explanation: you would you have to work with intense pressure and heat in order to fuse two hydrogen nuclei together to create helium isotopes.  

Answer:

The main problem is achieving ignition to start the reactions. Fusion reactions can occur only at extremely high temperatures.

Explanation:

chloroplast is responsible for the reactions of photosynthesis true or false

Answers

Answer:

The answer is TRUE

Explanation:

Answer: true, in cellular respiration the mitochondria is what helps it.

62. Compare point-source pollution and non-point pollution.

Answers

Answer and Explanation: The difference between point and nonpoint source pollution is that point source pollution has a single, identifiable source while nonpoint source pollution is a collection of pollutants from many different sources, not all of which are readily identifiable.

Answer:

Point source pollution refers to the pollution that occurs from a single identifiable source while nonpoint source pollution refers to the pollution that occurs via many diffuse sources

Explanation:


All of the population in a particular area make up a?

Answers

I would guess a community.

The answer would be: A community

What controls traits and inheritance

Answers

Answer:

A persons' parents genes (and maybe Natural Selection)

I think the answer for this one might be the nucleic acids

What structures in the body transport blood through the cardiovascular system?

artery

vein

trachea 

lungs

Answers

The arteries carry blood away from the heart; the veins carry it back to the heart.

B.veins

Answer:it’s artery , vein

Explanation:on edge 2020

Seasons are caused by ____. (1 point)
a).Earth’s rotation
b.) precession
c.)Earth’s tilted axis
d.)Earth’s distance from the sun

Answers

Answer:

Earth's tilted axis

Explanation:

The axial tilt of the Earth  causes either the northern or southern hemisphere to be closer to the sun, causing seasons

a).Earth’s rotation

  This causes the day night cycle, not seasons.

b.) precession

  Precession is the movement of the earth's axis in its orientation with its orbit, for example the orbit changing from lets say 15 to 20 degrees.

d.)Earth’s distance from the sun-

  If this were true, all the earth would have the same seasons, but they do not.

Final answer:

Seasons are primarily caused by Earth's tilted axis. This tilt, combined with Earth's orbit around the Sun, results in different parts of Earth receiving different amounts of sunlight at different times of the year, creating the seasons.

Explanation:

The seasons are primarily caused by Earth’s tilted axis, which is angled at about 23.5 degrees relative to its orbital plane. As the Earth orbits the Sun, this tilt causes different parts of the Earth to receive varying amounts of sunlight at different times of the year. In the summer months, the hemisphere tilted towards the Sun experiences longer, sunnier days, (i.e., summer), while the hemisphere tilted away experiences winter. Conversely, during winter, the hemisphere tilted away from the Sun experiences shorter, darker days. Earth’s rotation and precession do affect the Earth’s climate but are not the primary causes of the changing seasons. Similarly, Earth’s distance from the Sun varies slightly due to its elliptical orbit but doesn’t significantly affect the seasons.

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Can someone please describe how food is rearranged through chemical reactions forming new molecules that release energy as this matter moves through an organism.

Answers

Answer: I think it's photosynthesis

Explanation:

I know this is late, but this is actually an example of Cellular Respiration, the other person is wrong. While, the two are close, they are very different.

Some organisms have genes that improve their ability to survive and reproduce. If the genes also help their offspring survive and reproduce, then which of the following will most likely increase?

Answers

Hi!

The succsesful gene, like a camouflage gene, would increase in the species.

Hope this helps!

Answer:

the frequency of the genes in the population

Explanation:

took the tst

Which Best describes the purpose of a bar graph?

Answers

The purpose of a bar graph is to show the relationships between different data by showing a quantity or amount for each category.

A bar graph (also known as a bar chart or bar diagram) is a visual tool that uses bars to compare data among categories. A bar graph may run horizontally or vertically. ... The graph represents categories on one axis and a discrete value in the other. The goal is to show the relationship between the two axes.

Green power comes from

A. Wind
B. Sun
C. Water
D. All of the above

Answers

Answer:D. all of the above

Explanation: because green power just means power harnessed from nature

Answer:

D. All of the above

Explanation:

Green power is from reusable sources. The Sun, wind and water are all reusable.

Sickle-cell anemia is an example of codominance.What implications does this have for people with one or two copies of the sickle-cell gene?

a) people with two copies of the mutated gene have healthy red blood cells.people with one copy of the mutated gene dont have the disease but are carries of the disease.

b) people with two copies of the mutated gene have sicke cell anemia. people with one copy of the mutated gene have healthy red blood cells.

c) people with two copies of the mutated gene have sickle cell anemia. people with one copy of the mutated gene have both healthy and misshapen red blood cells and are carriers of the disease

d) people with two copies of the mutated gene are carriers of the disease. people with one copy of the mutated gene dont have the disease

please help!

Answers

Answer:

C

Explanation:

Codominant alleles mean that both alleles are expressed in the trait of the organism because no one alleles mask the effects of the other. Therefore an individual heterozygous for sickle cell will have both healthy and sickle cells in his blood. This is similar to plants with codominant alleles for petal color. If red and white color alleles are codominant, then the petals will have red and white patterns on the petals.

people with two copies of the mutated gene have sickle cell anemia. people with one copy of the mutated gene have both healthy and misshapen red blood cells and are carriers of the disease.

Optio nC is correct.

How do we explain?

Sickle cell anemia is a genetic disorder that is caused by a mutation in the hemoglobin gene. Hemoglobin is a protein that carries oxygen in the blood. The mutation in the sickle cell gene causes the hemoglobin molecules to form into long, rod-like shapes. These rod-like shapes can clog up the blood vessels, which can lead to a variety of health problems, including anemia, pain, and organ damage.

People with two copies of the sickle cell gene have sickle cell anemia. They have all of their red blood cells shaped like rods, which can cause severe health problems.

Option C is correc

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Other Questions
A huge chunk of the Earths crust is a The Iceman is the name given to the mummified body of a was found in near a glacier near the border of Italy and Austria. He is the best-preserved prehistoric man ever discovered with his own equipment and clothing. Most ancient human remains are found in burial chambers with carefully selected objected rather than what they use in everyday life. In Europe he is called tzi (rhymes with Tootsie) after the tzal Alps where he was found. [Source: Stephen Hall, National Geographic, July 2007; Bob Cullem Smithsonian, February 2003; David Roberts, National Geographic, June 1993 ] Some have called the discovery of 5,500-year-old Otzi one of the most spectacular archaeological discoveries of the 20th century. He is oldest intact human ever found. With the exception of missing toenails, all but one fingernail and an outer layer of skin the Iceman is otherwise perfectly reserved. His body and the tools and clothes found with him have given great insight into a people and age of which little is known in details never preciously imagined. After Otzi was discovered the world became caught up in Iceman ania. He appeared on the cover of Time magazine and other major publications. T-shirts and jewelry were sold with his sunken eyed beaming out. Pop songs were written about him. A German astrologer announced she was writing a book about her sences with the Iceman. Other women clamored to be the first to be impregnated with sperm from tzi's testicles. Mitochondrial DNA was extracted from Otzi's bones. A company called Oxford Ancestors, for a fee, will compare your DNA with Otzi's to see if you are related.IS IT TRUE PEEPS Examine todays stock listing for SFT Legal, shown below.52 wk High 52 wk Low Symbol Div. Close Net Change 74.80 44.61 SFT 8.94 56.11 5.74 What was the price of SFT Legal yesterday? Which ordered pairs are solutions to the inequality 2x-y>-4 Any organism or particle that can cause an infectious disease is called a Which scenario would most likely occur in a totalitarian country?A. A leader relies on a powerful military to projeot his country's poweroverseas.B. A leader sends secret police to spy on citizens suspected of notsupporting him.C. A leader holds elections to allow his citizens to participate in thegovernment.D. A leader argues that private businesses should operate withgovernment interference. Please help!!! Show work if needed Which of these constructions is impossible using only a compass and straightedge?A. Doubling the squareB. Bisecting any angleC. Doubling the cubeD. Trisecting a right angle how many raffle ticket numbers are possible if they contain two letters followed by three digits 6 Select the correct answer What would you buy at la verdulera? A. aspirinas B. peridicos C. pollo D. patatas south america has mostly been settled Which sentence is complex, compound, simple: after midnight the ghost will come out of the haunted attic. the author cites several statistics in the section "Why protest?" What are some of these statistics, and what is their function in the document can someone please help me out Being familiar with a job will guarantee that no accidents will occur. True False I need help for question 8 What pull factors brought people to the west? Explain Factor each equation 64p^3 - 8q^3 What type of current do power lines transmit and why?A. AC current, because AC current transmits more efficientlyB. DC current, because DC current transmits more efficientlyC. AC current, because AC current is saferD. DC current, because DC current is safer Tasha is decorating a rectangular bulletin board by putting ribbon around its outer edge. The bulletin board is 14 in wide and 18 in tall how many inches of ribbon does she need?