What is the first structure to receive carbon dioxide from the blood during exhalation?
bronchus
alveolus
nasal cavity
bronchiole
Answers
The first structure to receive carbon dioxide from the blood during exhalation is the alveolus.What is an alveolus?An alveolus is a tiny air sac found within the lung tissue that aids
the diffusion of gases between the air in the lungs and the blood in the capillaries. The oxygen from the air is taken up into the blood and replaced with carbon dioxide, which is then removed from the body during exhalation.What is a bronchiole?Bronchioles are small airways that carry air from the bronchi to the alveoli in the lungs. They are much smaller than the bronchi and branch off into smaller and smaller tubes.What is dioxide?Dioxide is a molecule composed of two oxygen atoms covalently bonded to a single carbon atom. It is also referred to as carbon dioxide (CO2) and is produced by cellular respiration in organisms that use oxygen as part of their metabolism.
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Related Questions
A person takes a drink of water and begins to
choke. The water has gotten into the person's
windpipe. Which part of the upper respiratory
system is supposed to prevent this?
larynx
nasal cavity
pharynx
nose
Answers
A flap of tissue called the epiglottis sits over the top of the trachea. This flap blocks food and drink from going down into the trachea when you swallow. But in some cases, food or drink can enter the trachea. It may go down as you swallow.
Answer:
Larynx
Explanation:
add a methyl or ethyl group to the amino or keto groups of nucleotides, changing base-pair affinities that result in mutation following dna replication. the following is a specific example: blank.
Answers
Alkylating agents add a methyl or ethyl group to the amino or keto groups of nucleotides, changing base-pair affinities that result in mutation following DNA replication. The following is a specific example: Ethyl methane sulfonate (EMS)
What are Alkylating agent?Alkylating agents are a powerful class of mutagens that can cause a variety of different mutations.
They are used in cancer chemotherapy, but they can also be harmful to DNA in other cells. Therefore, it is important to be careful when handling alkylating agents.
Ethyl methane sulfonate (EMS) is a relatively simple alkylating agent that is often used in mutagenesis studies.
The above answer is based on the full question below;
.......................... add a methyl or ethyl group to the amino or keto groups of nucleotides, changing base-pair affinities that result in mutation following dna replication. the following is a specific example: .....................
Alkylating agents
nitrous acid
New DNA strand
deaminating agent
base analog
proflavin
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The floor of the Atlantic Ocean is split in two by an immense volcanic chain that spans more than 40,000 miles around the
globe. True or false ?
A. True
B. False
It’s science FYI
Answers
The statement is true because the floor of the Atlantic Ocean is split by an immense volcanic chain that spans more than 40,000 miles around the globe
What is the atlantic ocean?The atlantic ocean is a massive body of water that spans across approximately one-fifth of Earth's surface. It is the large body of water that separates Africa and Europe.
The floor of the Atlantic Ocean is split by an immense volcanic chain that spans more than 40,000 miles around the globe hence the assertion is true.
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differentiate between light reaction and dark reaction
Answers
Answer: The main difference between light and dark reaction is that light reaction is the first stage of photosynthesis, which traps light energy in order to produce ATP and NADPH whereas dark reaction is the second stage of photosynthesis, which produces glucose by using the energy form ATP and NADPH produced from the light
Answer:
The difference between light reaction and dark reaction
Explanation:
Light reaction and dark reaction are the two types of sequential processes that occur during the photosynthesis of plants. Light reaction occurs in the thylakoid membrane of chloroplast whereas the dark reaction occurs in the stroma of the chloroplast. Light energy from sunlight is trapped by chlorophylls during the light reaction of the photosynthesis. Dark reaction is catalyzed by various enzymes. The main difference between light and dark reaction is that light reaction is the first stage of photosynthesis, which traps light energy in order to produce ATP and NADPH whereas dark reaction is the second stage of photosynthesis, which produces glucose by using the energy form ATP and NADPH produced from the light reaction.
How many different genes are coordinately regulated by the gal4 transcriptional activator?.
Answers
Answer:
Four
(For the extra words limit)
8. global warming is causing plants to spread north. which biome is likely to establish itself on the fringes of the tundra as the effects of global warming increase?
Answers
Plants are migrating north due to global warming. As the consequences of global warming worsen, the boreal forest biome is anticipated to grow on the edges of the tundra.
Boreal woods might disappear and turn into tundra, while temperate forests and grasslands might take their place.Climate is the primary factor in tundra formation. The Arctic experiences lengthy, chilly winters and brief, chilly summers.There isn't much vegetation there outside a few hardy scrub species. Due to its potential, scientists carefully monitor the tundra. All ecosystems will go through the fastest period of change if global temperatures rise as expected during the twenty-first century.
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Global warming is causing plants to spread north. which biome is likely to establish itself on the fringes of the tundra as the effects of global warming increase?
Mixed venous blood samples can be taken from which of the following blood vessels?
a. pulmonary vein
b. superior vena cava
c. inferior vena cava
d. pulmonary artery
Answers
Mixed venous blood samples can be taken from the pulmonary artery.
Mixed venous blood refers to the blood that has passed through the tissues and organs of the body and has returned to the heart, specifically the right side of the heart. It contains a mixture of oxygen-depleted blood and metabolic waste products.
To obtain a mixed venous blood sample for analysis, the pulmonary artery is typically used as the site for blood collection. The pulmonary artery carries deoxygenated blood from the right ventricle of the heart to the lungs, where it picks up oxygen and releases carbon dioxide.
By sampling blood from the pulmonary artery, healthcare professionals can assess the oxygenation status, acid-base balance, and other parameters reflecting the overall functioning of the body's tissues and organs. This information is particularly valuable in critical care settings to monitor the patient's respiratory and circulatory status and guide treatment decisions.
It's worth noting that blood samples from the pulmonary artery are usually obtained invasively, through a procedure called a pulmonary artery catheterization, which involves the insertion of a catheter into the pulmonary artery under sterile conditions.
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Beginning at the snout, identify the major physical characteristics of a hog.
Answers
Answer:
Pigs are stout-bodied, short-legged, omnivorous mammals, with thick skin usually sparsely coated with short bristles. Their hooves have two functional and two nonfunctional digits. Domestic North American pigs originated from wild stocks still found in European, Asian, and North African forests.
How AZT AZT interferes with DNA DNA synthesis?
Answers
AZT, also known as azidothymidine, is a medication used in the treatment of HIV and AIDS.
It works by interfering with the process of DNA synthesis in the virus.
More specifically, AZT is a nucleoside analogue, which means it mimics the structure of the nucleosides that make up DNA.
When the virus incorporates AZT into its DNA, it disrupts the chain of nucleotides needed for DNA synthesis, resulting in faulty viral replication and eventually leading to the virus's death.
While AZT can also affect normal DNA synthesis, it is less toxic to healthy cells due to their ability to repair and replace damaged DNA.
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heyy! i’ll give brainliest help asap pls
Answers
Answer:
I think the answer is A
hope this helps
have a good day :)
Explanation:
The appropriate response I accept would be dumping industrial sediment into the oceans.
what is the difference between agglutinogens and agglutinins
Answers
Explanation:
Both agglutinins and agglutinogens are made of proteins, but agglutinins are proteins produced by the body as part of an immune response, while agglutinogens are proteins produced by foreign cells or genetic material.
Answer:
Both agglutinins and agglutinogens are made of proteins, but agglutinins are proteins produced by the body as part of an immune response, while agglutinogens are proteins produced by foreign cells or genetic material. Agglutinins bind to agglutinogens, which causes the process called agglutination.
It is not the number of different nucleotides, but the ________________ that is important in the ability of DNA to code for all the variability of organisms.
I'll mark brainlest
Answers
Answer:
discupa eu não sei
uma bela noite abençoe
The correvisin sequires a prim perised adiuartmant. a The wormita +ntry will be difierent than if the erroe had besw सacrerted the poritul year whest it ocrarred. 6. The 20×1. Pepriciation Expener arroent will be involved in the poereving eutigh d. Aal sheve natemente arv trae. 44. Which of the fallowing is an ancurafe description ef the w failare to recerd ab ecriasl is Hikely tio be found? a. An expense that was not acrerued is paid, but there ia no poyaBLe wn thr tooks as thres thould be b. A revenue that was not aceroed is received, but there is ne receiv. attle on the beoks as there shoald be. c. A review of the trial balnnce teveals that aat asset or liability. actoant that ia norrally pireient after secrals are recorded is. fit presest. 4. All abere statemant are sccurate deseriptions of how faiture to fecord an accual is likely to be found 45. A comparison of thin your's trial bolance with lant year's may be w good พay to discever … a. whetber nurmal accuals were made this year- b. whether normal defirrals were made this year c. errers in accruate of deferrals that have resalted in overi or ugderetatement of revenues or expensef d. all of the abowe? 46. When trying to find errun in a trialhalance that docs not balance, the first step should be to ... it. mork from the ledger to the trial balance in check the jourran! entries and postings for errors b. see if the ledger acerant balanter have been calcalated correctly c. work from the ledper to the trial balance to verify that ledger account balances were transferred to the ourrect debit or credit: colurans d work from the trial balance to the ledger to verify that ledger: account balances were transferred to the corrcet debit or credit columns
Answers
The accurate descriptions are as follows: For question 44, none of the options accurately describe the likely finding when a failure to record an accrual occurs. For question 45, the accurate description is option (d): all of the above. For question 46, the correct first step to find errors in an unbalanced trial balance is to work from the ledger to the trial balance and verify the correct transfer of ledger account balances, which corresponds to option (c).
It appears that the text provided contains several errors and inconsistencies. However, I will attempt to address the questions based on the context and assumptions made.
44. The inaccurate description of the failure to record an accrual that is likely to be found is option (c): A review of the trial balance reveals that an asset or liability account that is normally present after several are recorded is not present. In reality, if an accrual is not recorded, it would lead to an understatement or omission of expenses or revenues, not the absence of assets or liabilities in the trial balance.
45. A comparison of this year's trial balance with last year's may be a good way to discover whether normal accruals or deferrals were made this year and whether errors in the accurate or deferred recognition of revenues or expenses have resulted in over- or understatement. Therefore, the correct option is (d): all of the above.
46. When trying to find errors in a trial balance that does not balance, the first step should be to work from the ledger to the trial balance to verify that ledger account balances were transferred to the correct debit or credit columns. This option corresponds to option (c).
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what is haploid?
explain it
Answers
Answer:
Haploid is the quality of a cell or organism having a single set of chromosomes. ... Sexually reproducing organisms are diploid (having two sets of chromosomes, one from each parent). In humans, only their egg and sperm cells are haploid.
Answer:
Haploid cells contain a single set of chromosomes. Gametes are an example of haploid cells produced as a result of meiosis. Examples of gametes are the male and female reproductive cells, the sperm and egg cell respectively.
Explanation:
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(a) Explain the effect of noise on humans when they are undergoing prolong and continuous exposure? (b) The hearing range can be divided into three main ranges called infrasound, audible sound and ultrasound. Define each range by relating it to humans, animals, tools, and machineries.
Answers
Prolonged and continuous exposure to noise can have various negative effects on humans, including physical, psychological, and physiological impacts. The hearing range is divided into three main ranges: infrasound, audible sound, and ultrasound.
When humans are exposed to prolonged and continuous noise, it can have detrimental effects on their well-being. Physically, noise can lead to hearing loss or damage to the auditory system. Psychologically, it can cause stress, irritability, anxiety, and difficulty concentrating. Physiologically, noise can disrupt sleep patterns, increase blood pressure, and negatively impact overall health.
The hearing range consists of three main ranges. Infrasound refers to sounds with frequencies below the range of human hearing, typically below 20 Hz. While humans cannot hear infrasound, some animals like elephants and whales can perceive it, and certain natural phenomena such as earthquakes and thunder produce infrasound. Audible sound is the range that humans can hear, typically between 20 Hz and 20,000 Hz. It includes speech, music, and environmental sounds. Ultrasound refers to sounds with frequencies above the range of human hearing, typically above 20,000 Hz. Some animals, such as bats and dolphins, can detect ultrasound, and it is used in various applications like medical imaging and pest control devices.
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Bed bugs probably evolved from bat bugs. Which statement best describes how this likely happened? Larger bugs must feed on blood more often, and are therefore more likely to need to feed at night when bats are not around. These larger bugs evolved into bed bugs. Bugs who fed on humans lost the ability to fly, and could therefore no longer feed on bats. There were two populations of bat bugs, one feeding on humans, and one on bats. Reproductive isolation, mutation, and natural selection led to speciation Differences between human blood and bat blood forced individual bugs to adapt and grow larger mouthparts
Answers
Bed bugs probably evolved from bat bugs. Which statement best describes Reproductive isolation, mutation, and natural selection led to speciation
The mechanisms of reproductive isolation are a collection of evolutionary mechanisms, behaviors and physiological processes critical for speciation. They prevent members of different species from producing offspring, or ensure that any offspring are sterile.
A change in the usual DNA sequence at a particular gene locus. Although the term often has a negative connotation, mutations (including polymorphisms) can be harmful, beneficial, or neutral in their effect on cell function. The term variant is sometimes used as a synonym for the term mutation.
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What are two tools that can be used to measure wind direction?
Answers
Answer:
it should be a wind vane and an anemometer.
Explanation:
The anemometer measures wind speed and the wind vane helps determine what direction the wind is coming from.
which plane divides the body into superior and inferior portions
Answers
Transverse plane divides the body into superior and inferior portions, that is, is the horizontal plane that divides the body into an upper and lower half.
The planes are reference lines that divide the body (or section it) to make it easier to visualize a structure.
Transverse planes are planes that cross the body at right angles to the coronal and median planes, dividing the body into upper and lower parts.
The axes of this plane are the transverse or horizontal and the anteroposterior, thus we can describe more medial or lateral and more anterior or posterior structures.
Between two horizontal planes, one will be more superior or cephalic (close to the head) and the other more inferior towards the feet (caudal).
Therefore, we can conclude that the planes are reference lines that divide the body and that allow us to understand the direction of the structures of our organism, where the transverse plane divides the body into superior and inferior portions.
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Look carefully under 400x magnification and relatively low light in order to see the ross walls representing the separate cells of the filament. Use yourrsciaphragm level to reduce the light level and increase image acuity. A. Below, draw one strand of Anabaena at 400x magnification and IDENTIFY EACH TYPE OF CELL FROM THE STRAND by circling them. Are all the cells dentical? Note that you may not see the very large akinete but should easily see heterocysts and vegetative cells (the most abundant) vegetative cet B. Use the diameter of the field of view at 400X from WeekLab Exercise to estimate wiath of the filaments. How wide is one cell of Anabaena? Show your calculations. 2 C. What color(s) are the cells? s green D What moleculets give them this color? heterotroph? Based exclusively on what you can see in the Is Anabaena an autotroph or-a image how do you know this?
Answers
A. Circle the heterocysts and vegetative cells. No, all the cells are not identical. B. Estimating the width of the filaments: Use the diameter of the field of view at 400x magnification. Calculate the width of one cell of Anabaena based on the known field of view. C. The color of the cells is green. D. The molecules that give the cells their green color are chlorophyll pigments. Anabaena is an autotroph, as it contains chlorophyll for photosynthesis.
Draw and identify Anabaena cells at 400x magnification. Estimate width and identify color and molecules responsible for it.
To draw and identify Anabaena cells at 400x magnification, one needs to look for the ross walls representing the separate cells of the filament under relatively low light.
One should use their diaphragm level to reduce light level and increase image acuity. The most abundant cells are vegetative cells, followed by heterocysts.
One can estimate the width of the filaments by using the diameter of the field of view at 400x. The cells are typically green due to chlorophyll and phycocyanin molecules.
This indicates that Anabaena is an autotroph, capable of producing its own food through photosynthesis.
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Which of the following shows correctly ordered steps for protein synthesis in animal
cells?
Protein -> RNA ->DNA
DNA -> Protein ->RNA
RNA -> DNA ->Protein
DNA -> RNA ->Protein
Answers
Answer: DNA -> RNA ->Protein (choice 4)
RNA enters the cell nucleus to copy the DNA sequence, and that sequence of RNA is transported outside the nucleus to the ribosome. This is where amino acids are assembled to form complex protein chains.
How do some cells become brain cells and others become skin cells, when the DNA in all the cells is exactly the same?
Answers
Answer:
it has the ability to turn off genes
what species do we consider good and which ones are bad
Answers
Answer:
We may consider bees good because they pollinate the plants that give us food crops. We may consider mosquitos bad because they can transmit malaria.
What method is being used when the roads are being watered?
Answers
Answer:
handy mandy
Explanation:
Answer:
reduced slopes, rubber membrane and a water tube
Explanation:
for ingested foods, the first opportunity for enzymatic digestion occurs in the . view available hint(s)for part a for ingested foods, the first opportunity for enzymatic digestion occurs in the . pancreas stomach large intestine small intestine mouth
Answers
According to the research, the correct option is mouth. For ingested foods, the first opportunity for enzymatic digestion occurs in the mouth.
What is enzymatic digestion?They are proteins whose function is that they allow the digestion of food and the assimilation of nutrients and the decomposition of the different nutrients are secreted by the pancreas and go to the duodenum to exert their action, such as amylase, lipase.
In this sense, enzymes, since they are proteins that break down nutrients, are formed inside the cells present in the mouth and have a prominent role in all phases of digestion, which starts from the mouth with the saliva that contains enzymes for digestion, preventing the formation of toxins and other substances harmful to the digestive tract.
Therefore, we can conclude that according to the research, the correct option is mouth. For ingested foods, the first opportunity for enzymatic digestion occurs in the mouth.
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A researcher investigated a blood disease carried by birds she isolated an organism from the blood of an infected bird she finds that the organism is unicellular and has a nucleus a cell wall and the ability to produce spores what kingdom does the organism belong to
Answers
The researcher who conducted an investigation on a blood disease carried by birds found out that the organism is unicellular and has a nucleus, cell wall, and the ability to produce spores. Based on this information, the organism belongs to the Kingdom Fungi.
The kingdom Fungi consists of unicellular and multicellular organisms that lack chlorophyll and reproduce asexually and sexually by forming spores. They are heterotrophic organisms, which means they depend on other organisms for their food. Fungi cells have a cell wall made up of chitin, which provides strength and rigidity to the cell wall. The cytoplasm of the fungal cells contains many specialized organelles, including nuclei, ribosomes, mitochondria, and Golgi bodies that carry out various metabolic activities.
The researcher's findings suggest that the organism is a unicellular fungus with a nucleus, cell wall, and the ability to produce spores. Spores play a crucial role in the fungal life cycle, as they allow the organism to reproduce and spread to new habitats. These spores can be transported by wind, water, or other organisms to colonize new areas.
In conclusion, based on the researcher's investigation, the organism she isolated from the blood of an infected bird belongs to the Kingdom Fungi.
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Which of the following statements are true? Select all that apply.
A. The order of amino acids in a protein does not affect the protein’s function.
B. Each type of amino acid interacts in the same way with molecules in the cell environment.
C. A protein’s structure depends on the order of its amino acids.
D. The shape of a protein can affect its function.
Answers
Answer:
C. A protein’s structure depends on the order of its amino acids.
Answer: The real anwser is C and D
the cell bodies of sensory neurons are found in an enlarged area of the dorsal root called the gray commissure. the cell bodies of sensory neurons are found in an enlarged area of the dorsal root called the gray commissure. true false submit
Answers
It is false that the cell bodies of sensory neurons are found in an enlarged area of the dorsal root called the gray commissure.
The cell bodies of sensory neurons are in the dorsal root ganglia. The cell bodies of motor neurons are found in the gray matter of the spinal cord in the ventral region.
A collection of neurons is referred to as a nucleus if it is found in the central nervous system; a ganglion (PNS) is the name given to it if it is found in the peripheral nervous system. Ganglia are the structures that lie between the central and peripheral nervous systems together with the anterior white commissure, which connects the two halves of the spinal cord, the grey commissure is a thin strip of grey matter that surrounds the central canal of the spinal cord. In the Rexed classification, it is lamina X. Commissure in grey.
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Half reactions with the greatest reducing potential are found
o at the top of the redox tower. o in the middle of the redox tower.
o at the bottom of the redox tower. o indiscriminately throughout the redox tower.
Answers
Half reactions with the greatest reducing potential are found at the top of the redox tower. The redox tower is a graphical representation of the relative strengths of oxidizing and reducing agents.
It is arranged with the strongest oxidizing agents at the top and the strongest reducing agents at the bottom. The half reactions at the top of the redox tower have the greatest tendency to accept electrons and become reduced. This means that they have a strong oxidizing potential and can easily oxidize other substances. In contrast, the half reactions at the bottom of the redox tower have the greatest tendency to donate electrons and become oxidized. This means that they have a strong reducing potential and can easily reduce other substances. Half reactions with intermediate reducing potential are found in the middle of the redox tower. In general, the greater the difference in reducing potential between two half reactions, the more energetically favorable the reaction will be. This knowledge is important in understanding the behavior of redox reactions and in predicting the outcome of chemical reactions.
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What is the function of the vacuole?
to control all cell functions
for storage
to make proteins
to transport materials
Answers
Answer:to transport materials
Explanation:
That is to say that their function is really to handle waste products, and by handle, mean take in waste products and also get rid of waste products.
BRAINLY PLEASE
Which statements are true about variations in the genetic code?
Select all that apply.
A) All organisms display huge differences in their genetic code.
B) They may result in diseases.
C) They may provide selective advantages.
D) Slight differences in the genetic code may have significant results.
Answers
Answer:
C) They may provide selective advantages.
D) Slight differences in the genetic code may have significant results.
Explanation:
The genetic code is universal, and present in most living beings . Generally, in most living organisms, the same codons are assigned to the same amino acids.
DNA sequences make up genes that may have multiple variants, called alleles. DNA deoxyribonucleic acid, is transcribed into mRNA and then translated into amino acids that form proteins.
Natural selection mainly acts on phenotypes, which are dependent on proteins and the organisms's environment. Phenotypes conferring advantageous traits are favored by the selection process- these help groups of organisms evolve over time.
