external respiration takes place in?

Answers

Answer 1

Answer:

External respiration takes place in the lungs

Explanation:

External respiration takes place in the lungs, in the exchange process of carbon dioxide (CO2) and Oxygen (O2). This means that in the lungs, oxygen diffuses into the blood and carbon dioxide diffuses into the alveoli (smallest functional structure of the lungs). In order to understand the difference, in the other hand we have internal respiration which occurs in metabolizing tissues, where the exchange of oxygen and carbon dioxide occurs in the cells.

Answer 2

External respiration is the process by which oxygen is taken in from the environment and carbon dioxide is released from the body. It occurs in the lungs.

During external respiration, oxygen from the inhaled air enters the lungs and diffuses across the thin walls of the alveoli (small air sacs) into the bloodstream.

This process is facilitated by the difference in partial pressure of oxygen between the alveoli and the blood in the pulmonary capillaries. Oxygen binds to hemoglobin in red blood cells and is transported throughout the body.

At the same time, carbon dioxide, which is a waste product produced by cells during cellular respiration, diffuses from the bloodstream into the alveoli. The carbon dioxide is then exhaled out of the body during expiration.

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Related Questions

when cement is produced, where is carbon released​

Answers

Answer:

the process of making clinker the key constituent of cement that emits the largest amount of CO2 in cement making. World cement production generated around 2.2 billion tonnes of CO2 _ equivalent to 8℅ of the global total

By that of my explanation i think you will get it

Label the steps for protein synthesis in order, beginning with the first step

Answers

The steps for protein synthesis in order are:

1. Copy of one side of DNA strand is made (called mRNA, messenger RNA)

2. mRNA moves to cytoplasm, then ribosome.

3. mRNA goes through ribosome 3 bases at a time.

4. transfer RNA (tRNA) matches up with the open DNA bases.

5. tRNA releases the amino acid at the top, which joins the chain of amino acids being produced.

Answer:

Steps of protein synthesis:

1) DNA double helix unwinds into a single strand and exposes a sequence of nitrogenous bases, this is also known as the unzipping process.

2) Transcription: In this process, DNA transfer the genetic instruction to mRNA in the nucleus.

3) Translation: In this process mRNA couples the ribosomes & tRNA helps to bring amino acids to ribosomes. This process is known as Initiation.

4) Elongation: Anti-codons present on tRNA recognizes codons present on mRNA.  

5) Termination: In this step when the stop signal on mRNA is reached, the process of protein synthesis is terminated.

What do cellular respiration and fermentation have in common? They both occur in the mitochondria, they both Harvest energy from sugars, they both require oxygen to occur, they both end up with pyruvic acid.

Answers

Answer:

Fermentation and cellular respiration are alike in that they both begin with a series or reactions known as glycolysis, which breaks glucose molecules into smaller pyruvate molecules. They are also similar in that during both processes ATP is produced for the cell to use.

Hope it helps.

Answer:

They both harvest energy from sugars.

Explanation:

Cellular respiration and fermentation are reactions of the energy metabolism of organisms, which aims to obtain energy for metabolic reactions from the breakdown of glucose (sugar) in ATP. ATP keeps in its phosphate bonds energy that will be used in metabolism. This nucleotide is the energy currency of the cell.

16. Is a bear an ENDOTHERM or ECTOTHERM?

Answers

Answer:

Endotherm which basically means that they can create heat from within themselves

mine the weather map.
What do the numbers on the map represent?
air pressure
temperatures
humidity levels
amount of precipitation
Seattle
73/53
Billings
87/59
Minneapolis
82/59 Detroit New York
88/65 80/71
Chicago
87/65 Washington
DC
86/70
San Francisco
75/55
Denver
89/60
Atlanta
9271
Houston
91/76
Н
Miami
93/76
Mark this and return
Save and Exit
Next
Submit​

Answers

Answer:Temperatures.

I hope that helps!

Explanation:

Based on the information provided, the numbers on the map represent temperatures in degrees Fahrenheit for different cities in the United States.

What is temperature?

Temperature is a physical quantity that measures the degree of hotness or coldness of an object or substance. It is a measure of the average kinetic energy of the particles that make up the object or substance. Temperature is measured in various scales such as Celsius, Fahrenheit, and Kelvin.

Temperature is an important factor in many fields of science and engineering, including physics, chemistry, meteorology, and materials science. It affects the behavior of matter and can influence physical and chemical processes, such as the rate of chemical reactions, the properties of materials, and the behavior of atmospheric phenomena, including weather and climate.

Temperature also has significant impacts on living organisms, affecting their metabolism, behavior, and survival. For example, changes in temperature can affect plant growth and development, animal behavior and migration patterns, and the distribution of species across different regions.

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What is used to support a claim made by a product?
A. Exceptions
B. Bias
C. Evidence
D. Warnings

Answers

Answer:

C Evidence

Explanation:

Evidence is used to support a claim made by a product.

What two nervous systems balance each other to provide homeostasis?
O
A. Parasympathetic and sympathetic
O
B. Central and peripheral
O
c. Central and sympathetic
D. Somatic and parasympathetic​

Answers

Answer:

Parasympathetic and sympathetic -A.

Answer:  The correct answer is: [A]:

_________________________________________________

                →  " parasympathetic and sympathetic " .

_________________________________________________

The 2 (two) "nervous systems" that balance each other to provide "homeostasis" are:

_________________________________________________

   1)   the "parasympathetic" nervous system ;  and:

  2)  the "sympathetic"  nervous system.

__________________________________________________

Hope this answer is helpful to you!

       Wishing you the best in your academic endeavors

                   —  and within the "Brainly" community, as well!

__________________________________________________

Enzymes act as catalysts because _________.
A. they raise the activation energy
B. they lower the activation energy
C. they use activation energy
D. they maintain activation energy



Answers

Answer:

B.they lower the activation energy

Explanation:

activation energy is the minimum energy required in order to proceed the chemical reaction

For DNA to be passed on to a later generation an organism must

Answers

Answer:

Reproduce.

Explanation:

For DNA to be passed on to a later generation an organism must, reproduce.

Answer:

Reproduce

Explanation:

__ is the second step of photosynthesis

.A. Chemiosmosis
B. Photophosphorylation
C. Capturing sunlight
D. Harvesting electrons

Answers

Answer:

C. Capturing sunlight

Explanation:

Capturing sunlight is the second step of photosynthesis .

Molds, casts, coprolites, and petrified wood are all example of​

Answers

Answer:

Molds, casts, coprolites, and petrified wood are all examples of​ fossils.

Explanation:

Molds are fossils formed by the authigenic preservation of an organism- it is covered gradually in mud or silt which hardens into rock leaving indents there after it has decayed. Similarly, casts are mineral deposit filled casts, which produce fossilized copies of the organism. Coprolites, fossilized fecal matter, are a type of trace fossil, which provides records the presence, diet and other habits of the organism in an area by its preserved excrement. Petrified wood,like molds and casts are mineralized, however the differs from molds as it has not undergone decay.

The correct answer is fossils.

Molds, casts, coprolites, and petrified wood are all examples of fossils. Fossils are the preserved remains or traces of animals, plants, and other organisms from the remote past. Here's how each of the given examples fits into the category of fossils:

- Molds are fossils that form when an organism's body decays completely, leaving a hollow space in the rock that is the exact size and shape of the organism.

- Casts are fossils that occur when the hollow space left by a mold is filled with minerals, creating a replica of the organism's body.

- Coprolites are fossilized feces that provide information about the diet and behavior of ancient organisms.

- Petrified wood is formed when the organic remains of a tree are replaced by minerals, turning the wood into stone. This process preserves the original structure of the wood in fine detail.

Each of these fossil types provides valuable information about the biology and ecology of past life on Earth.

1. What is microevolution?
A genetic changes among and within populations
B evolution of new species
C major changes in populations over a long time
D changes in a population's allele frequencies

Answers

Answer:

A. Genetic changes among and within populations

Explanation:

Macro evolution is the theory that animals evolved over time into new species while micro evolution is more minute changes within a species, like a genetic mutation to help the species adapt to their environment. An example would be of a genetic mutation in the fur color of bears to make different types of bears like black bears, brown bears, polar bears, etc

Answer:

genetic changes among and within populations

Explanation:

What determines an atom's chemical properties?
A.the number of protons in its outermost shell
B.the number of electrons in its outermost shell
C.the number of neutrons in its nucleus
D.the number of electrons in its nucleus

Answers

B. The number of electrons in the outermost shell.
The valence electrons are the ones who are pretty much reacting with everything around in terms of chemical reactions. Nuclear reactions are different

Answer:The right choice is B

Explanation:

give three other environmental factors that would increase the rate of water loss from plants

Answers

Answer:1)Temperature  2)Wind  3)Humidity  4)Light:plants tend to transpire more rapidly in light than in the dark.

Explanation:

Which options identify the main ocean zones? Check all that apply. deep
intertidal
neritic
open-ocean
surface

Answers

Answer:

Deep, neritic, and open ocean.

Answer:

The answer is Intertidal, Neritic and Open-ocean.

Explanation:

The main ocean zones are:  

Intertidal zone = It is the closest to the coast. In high tide it is covered with water, and at low tide it is exposed to the air. Neritic zone = It is located on the continental shelf, the water is not very deep and many nutrients and sunlight are found. Open ocean zone = It is the ocean beyond the continental shelf where water is very deep and nutrients may be scarce.

What is the process of glycolysis, including its reactants and products?

Answers

The metabolic pathway that converts glucose into pyruvate. The free energy released in this process is used to form the high-energy molecules ATP and NADH.
Final answer:

Glycolysis is the process of breaking down glucose in the cytoplasm of a cell into two molecules of pyruvate. The reactants required for glycolysis are glucose, 2 NAD+, 2 ADP, and 2 phosphate. The products are 2 pyruvate, 2 NADH, 2 ATP, and 2 water molecules.

Explanation:

The process of glycolysis, a crucial part of cellular respiration, occurs in the cytoplasm of cells. It involves the breakdown of glucose, a six-carbon sugar, into two molecules of a three-carbon sugar.

The reactants involved in glycolysis are: a molecule of glucose, 2 NAD+, 2 ADP, and 2 phosphate.

The products of this process are: 2 pyruvate, 2 NADH, 2 ATP, and 2 water molecules. Glycolysis is an anaerobic process that provides cells with a quick source of energy, and it does not require oxygen to occur.

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What are the basic building blocks of DNA and RNA?
A.
nucleotides
B.
phosphorous
O
C.
proteins
D.
sugar
Reset

Answers

The answer is A. nucleotides
Answer is A, nucleotides

Describe how different types of solutes dissolve in water

Answers

Many solutes dissolve in water because water is very polar compound. A general rule : like dissolves like . For example , polar solvates dissolve polar solutes , and non polar solutes . Ionic solutes separate into individual ions when they dissolve.

Water is a polar solvent. The different types of solute dissolved in water due to dipole-dipole interaction, and ion-dipole interaction.

What are solutes and solvents?

The substance that dissolves in water are called solutes and the substance in which solutes are dissolved is called the solvent. Polar substances dissolve in polar solvents while nonpolar substances dissolve in nonpolar solvents.

Water is a molecule where one oxygen is bound to two hydrogen atoms. Water is called a universal solvent because it allows a wide range of molecules to dissolve in it.  Ionic compounds and polar molecules are dissolved in water.

Common examples of some substances that dissolve in water are sugar, salt, glucose, ammonia, and methanol.

Therefore, the different types of solute dissolved in water due to dipole-dipole interaction, and ion-dipole interaction.

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In Ecology, how are organisms grouped?

A. Organisms are grouped by community

B. Organisms are grouped by population

C. Organisms are grouped by species

Answers

Answer:

C. Organisms are grouped by species

Explanation:

In Ecology, organisms are grouped by species.

C . Organisms are grouped by species

How are photosynthesis and cellular respiration related?
O
O
O
A. They are both performed by animals.
B. They are both performed by plants.
c. They both produce glucose molecules.
D. They both require energy from the sun.
O

Answers

Answer:

B

Explanation:

Photosynthesis requires sunlight and produces glucose but animals do not carry out photosynthesis and animal cells do not have the chloroplasts to absorb sunlight. Therefore A is false as is C and D as respiration uses glucose and does not produce it. And respiration transfers energy to cells that needs it therefore sunlight energy is not required.

Hope this helps.

Final answer:

Photosynthesis and cellular respiration are interrelated processes where photosynthesis creates glucose and oxygen, which are then used in cellular respiration to produce energy, carbon dioxide, and water. They function as opposite halves of a cycle that facilitates the energy flow within ecosystems and helps regulate the levels of carbon dioxide and oxygen in the atmosphere.

Explanation:

Photosynthesis and cellular respiration are related in that they are essentially opposite processes that work together to facilitate the flow of energy through living organisms. Photosynthesis is a process used by plants, algae, and certain bacteria to convert light energy from the sun into chemical energy stored in glucose, releasing oxygen as a byproduct. Cellular respiration is a process that all living organisms perform, in which oxygen and glucose, produced by photosynthesis, are used to generate ATP, the energy currency of the cell, with carbon dioxide and water being released as byproducts.

To sum up, while photosynthesis converts carbon dioxide and water into glucose and oxygen using the sun's energy, cellular respiration converts glucose and oxygen back into carbon dioxide and water while releasing usable energy stored in ATP. This cyclical relationship is critical for the energy flow and the constant recycling of carbon dioxide and oxygen in the Earth's atmosphere. It forms part of the larger carbon and energy cycle of our planet.

3. Which of these substance has a brown color and is
detected by the spectrophotometer in our reaction?
A) Guaiacol
D) Tetraguaiacol
B) Peroxidase E) Hydrogen peroxide
C) buffer

Answers

Answer:

E) Hydrogen peroxide

Explanation:

Hydrogen peroxide is the substance that has a brown color and is  detected by the spectrophotometer in our reaction.

Final answer:

A) Guaiacol is the substance that turns brown in the reaction involving hydrogen peroxide (H₂O₂) and is detected by the spectrophotometer. It serves as a reducing agent in the enzymatic breakdown of hydrogen peroxide by turnip extract peroxidase.

Explanation:

The substance that turns brown when detected by the spectrophotometer in the reaction involving hydrogen peroxide (H₂O₂) is guaiacol. In the process where turnip extract is used as a source of peroxidase, guaiacol serves as a reducing agent. When oxidized by the enzyme catalyzed reaction which breaks down hydrogen peroxide into water and oxygen, guaiacol transforms into a brown color. This brown coloration is a direct result of the enzymatic activity and is measured using a spectrophotometer for quantitative analysis.

Determine which of the following characteristics are environmental, not inherited.
I. Weight
II. Blood group
III. Language spoken
IV. Eye color

Answers

Answer:

Environmental characteristics (not inherited): Weight and Language spoken.

Explanation:

Environmental characteristics are traits or features that are primarily influenced by external factors in an individual's environment rather than being inherited through genes. For example, weight can be influenced by factors such as diet, exercise, and lifestyle choices. Language spoken is another environmental characteristic as it is learned from the surrounding culture and the community a person grows up in. These characteristics can vary significantly among individuals based on their unique experiences and interactions with their environment.

what is the meaning of life (do not answer with 42 lol)

Answers

The meaning of life can be thought of as a subjective question. A subjective is a question that varies from each person so each person has a different perspective on it. I believe that the meaning of life is how you handle it. in other words, you can decide how you want to live your life and nobody can stop you from doing what you want to do.

enzymes act as catalysts because___

Answers

Answer:

Explanation:

Enzymes are macromolecular biological catalysts that accelerate chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products

Andrea wants to understand the impact of the fragmentation of habitats on wildlife species. Which method will help Andrea with her study?
A assisted reproduction
B. camera trapping
C. genome conservation
D. ecosystem modeling

Answers

Answer:

D. Ecosystem modeling.

Explanation:

Andrea wants to know the impact that habitat fragmentation has on wildlife. If we think about it, she is studying an ecosystem: habitat + wildlife. Therefore, it is easy to conclude what the answer is. Plus, when we study damage on habitats that bring negative effects to wildlife, we're directly studying the damage of an ecosystem.

Ecosystem modeling is the creation of an ecosystem model, to understand an study what happens in the real ecosystem.

Hope it helped,

BiologiaMagister

C. Genome Conservation

Food employees must wear clean outer clothing to prevent
contamination of:
A. Potable water supply
B. Wall surfaces
C. Handwashing lavatories
D. Food

Answers

Answer:

D. Food

Explanation:

Food employees must wear clean outer clothing to prevent  contamination of food.

Final answer:

Food employees must wear clean outer clothing to primarily prevent contamination of food. This is part of essential food hygiene and safety practices to ensure food is safe for consumption.

Explanation:

Food employees are required to wear clean outer clothing primarily to prevent the contamination of food. Wearing clean clothes helps to minimize the risk of bacteria, dirt, or other harmful substances being transferred from the clothing to the food. Hence, it's a fundamental part of food hygiene and safety practices.

Contamination of the potable water supply, wall surfaces or hand washing lavatories, although important to prevent, are not primarily related to the requirement for food employees to wear clean outer clothing. The main concern is to assure the food they are handling remains safe and clean to consume.

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A scientist uses a simulation because it:

A. Provides the most meaningful type of information
B. Costs less money than a real experiment
C. Is more fun than making measurements in the natural world
D. Can help make sense of a difficult problem

Answers

Answer:

The correct answer would be option D, Can help make sense of difficult problems.

Explanation:

In simple words, simulation is the Model. Simulation is the imitation of some procedure or method or process or situation. We can say it deception as well. Simulation is used as a method of analysis. When there are complex situations or processes that need to be tested before launching into the general public or to be used in the scientific researches or anything, Simulation is used. Simulation imitates the situation, checks for any errors, experiments the inputs and see the outputs of the process, method, system, etc, which they have developed. So A scientist uses simulation because it can help make sense of difficult problems.

Answer:

ANSWER IS D.

Explanation:

Have an nice day :)

Help me pleaseeeeeeeee

Answers

1. Behavioral

2. Structural.

3. Structural.

4. Behavioral.

5. behavioral.

6. Functional

I did my best on these, hope it helps!

What evidence did Darwin use to support his theory of evolution? Check all that apply.

in-depth studies of individual organisms
observations of fossils
finches on different islands had different types of beaks
young finches that acquired desirable traits as they aged
observations of different species with varying traits

Answers

Final answer:

Darwin used observations of fossils, variances in finches' beaks across different islands, and the diversity of traits among different species to validate his theory of evolution. These evidences solidified the basis for his concepts of natural selection and adaptive evolution.

Explanation:

Charles Darwin used various forms of evidence to support his theory of evolution. This evidence played a critical role in the establishment of evolutionary biology as a valid scientific discipline. Key sources of evidence included observations of fossils, the noticeable difference in finches' beaks on different islands, and his vast observations of different species with varying traits.

His fossil observations allowed Darwin to perceive evolutionary change over long periods of time. The finches displayed how species could adapt in response to environmental factors, such as food availability, which impacted the form and function of their beaks. Moreover, his observations of diverse species exhibited the capacity of life forms to develop different characteristics in response to their circumstances, further grounding his argument for natural selection and adaptive evolution.

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The sun rotates
O
A. around Earth once per year.
O
B. at different speeds along its sphere.
O
C. every 31 days.
O
D. once per year.

Answers

Answer: B

Explanation: the sun is made of gas, which doesn't all spin together at the same speed like a solid rock would.

The sun rotates at different speeds along its sphere, a phenomenon known as differential rotation. The rotation period near the sun's equator is about 25 days and increases with latitude.

The correct answer to the question of how the sun rotates is B. at different speeds along its sphere. This phenomenon is known as differential rotation. Unlike a solid body like Earth, the Sun, being a gaseous body, does not rotate at a uniform speed. At its equator, the Sun's rotation period is about 25 days, but this rotation period increases with latitude — being around 28 days at latitude 40°, and up to 36 days near the poles. Galileo discovered this by observing sunspots and their movement across the Sun's disk, indicating that the Sun does indeed rotate on its axis.

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A nurse is assessing a client who is receiving oxytocin via continuous IV infusion for labor augmentation. The nurse notes six contractions in a 10 min period with a non-reassuring FHR. Which of the following actions should the nurse take first?a. Discontinue the oxytocin IV infusion.b. Turn the client to her left side.c. Administer terbutaline 0.25 mg subcutaneously.d. Apply oxygen at 10 L/min via face mask. Christopher came down with chickenpox after spending time in his child's daycare the chickenpox represent a link in the chain of transmission in this scenario Which is the best example of a cottage industry business?A car company uses an assembly line to make vehicles.A family sells the rights to the coal in their backyard.A seamstress weaves clothes to sell out of her home.A shoemaker starts at home but expands into a factory. What Is the measurement value? 70% of the workers at Motor Works are female, while 68% of the workers at City Bank are female. If one of these companies is selected at random (assume a 50-50 chance for each), and then a worker is selected at random, what is the probability that the worker will be female? A university is trying to determine what price to charge for tickets to football games. At a price of $24 per ticket, attendance averages 40 comma 000 people per game. Every decrease of $3 adds 10 comma 000 people to the average number. Every person at the game spends an average of $6.00 on concessions. What price per ticket should be charged in order to maximize revenue? How many people will attend at that price? Which of the following disorders results from a deficiency of factor VIII? a. Sickle cell disease b. Christmas disease c. Hemophilia A d. Hemophilia B What was the Velvet Divorce?Czechoslovakias split into two countriesthe rift between Czechoslovakia and Polandthe end of communism in Czechoslovakiathe first phase of the Velvet Revolution Hydrocyanic acid is classified as a weak acid in water. This means that A) it produces a relatively small fraction of the maximum number of possible hydronium ions. B)100% of the maximum number of possible hydronium ions. C)a relatively large fraction of the maximum number of possible hydronium ions. D)no hydronium ions. If an electric wire is allowed to produce a magnetic field no larger than that of the Earth (0.503 X 104 T) at a distance of 15 cm from the wire, what is the maximum current the wire can carry? A cylindrial hole is cut through the cylinder below.below. The larger Cylinder has a diameter of 14 mm and a height of 25 mm. If the diameter of the hole is 10 mm, find the volume of the solid. Simplify the following expression.x4 + 3x2 - 2x* -5x2 - x + x2 + x +1+7x4 3. Find all the zeroes of the polynomial x4 + 2x3 - 8x2 - 18x - 9, if two of its zeroes are 3and -3. For several nights in a row, a sleep researcher wakes you up whenever you show signs of entering REM sleep. On the first night that you are allowed to sleep uninterrupted, you will most likely experience: A baseball diamond is actually a square with sides of 90 feet. If a runner tries to steal second base how far must the catcher at home plate throw to get the runner out given this information explain why runners more often try to steal second base than third Find the slope and the y-intercept of the equation y-36x - 1) = 0 Which event led a Powderkeg in Europe and led to the start of World War I?- Russia joined a war between Austria-Hungary and Serbia.- Austria Hungary declared war on Serbia due to ethnic uprising.- Archduke Franz Ferdinand was assassinated by a Serbian nationalist.- Archduke Franz Ferdinand stopped a revolt of Serbian nationalists. _____ are ______ midsegments of WXY.What is the perimeter of WXY?11.57 cm12.22 cm12.46 cm14.50 cm Answer each of the questions negatively using the appropriate expression which of the following are necessary when proving that the diagonals of a rectangle are congruent check all that apply