the vessel central to the four chambers of the heart on axial ct images is the a. ivc. b. pulmonary trunk. c. ascending aorta. d. svc.
Answers
The vessel central to the four chambers of the heart on axial ct images is the c)ascending aorta.So,correct option is c.
The ascending aorta (AAo)[1] is a piece of the aorta starting at the upper piece of the foundation of the left ventricle, on a level with the lower boundary of the third costal ligament behind the left 50% of the sternum.
It passes diagonally vertically, forward, and to one side, toward the heart's pivot, as high as the upper boundary of the second right costal ligament, depicting a slight bend in its course, and being arranged, around 6 centimeters (2.4 in) behind the back surface of the sternum. The absolute length is around 5 centimeters (2.0 in).
The aortic root is the piece of the aorta starting at the aortic annulus and reaching out to the sinotubular intersection. It is once in a while viewed as a piece of the climbing aorta,[2] and at times viewed as a different substance from the remainder of the rising aorta.[3]
Between every commissure of the aortic valve and inverse the cusps of the aortic valve, three little dilatations called the aortic sinuses.The sinotubular intersection is the point in the climbing aorta where the aortic sinuses end and the aorta turns into a cylindrical design.
Hence,correct option is c.
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Related Questions
during ____ the nuclear membrane around the nucleus begins to disintegrate
Answers
Answer:
during prophase, the nuclear membrane around the nucleus begins to disintegrate.
when lumps of soil for clay, loam and sand are rolled in hands, the ease with which they crumble is always in the reducing order as.
A.clay,sand,loam
B.sand,clay,loam
C.sand,loam,clay
D.clay,loam,sand
Answers
Answer:
The correct answer is:
sand, loam, clay (C.)
Explanation:
Arranging the ease of crumbling in reducing other means that the different types of soils are arranged in the order where the soil type most likely to crumble when rolled is written first, and the soil type least likely to crumble is written last. The soil most likely to crumble (scatter) when rolled is the sandy soil, and the least likely to crumble is the clay soil.
if all cells contain the exact same copy of DNA, how do they become specialized?
Answers
Even if all the cells have the same DNA they biochemical function are different, that's because differents sets of genes must be turned on and off in each cell type by the action of enzymes and other molecules. Each cell have the same 20,000 or so genes but they are biochemically selected by the action of molecules as hormones and chemical signaling. Therefore, different cells use different parts of the DNA code as directions.
following habituation to one stimulus, the tendency for a second stimulus to arouse new interest (often used to testwhether infants can discriminate between stimuliDishabituation
Answers
Habituation is a decrease in response to a repeated stimulus. In infants, this can be observed through a decrease in attention or interest in a particular object or sound. Dishabituation refers to the reversal of this process, where a second stimulus is presented after habituation and it elicits a new response or renewed interest.
Dishabituation refers to the process where, after habituation to one stimulus, a second stimulus is introduced which arouses new interest. This concept is often used to test whether infants can discriminate between stimuli.
1. Habituation: Infants are exposed to a stimulus (e.g., a sound or image) repeatedly until their response decreases, indicating that they have become habituated to it.
2. Second stimulus: After habituation, a new stimulus is introduced to the infants. This second stimulus is different from the first one, allowing researchers to assess the infants' ability to discriminate between the two stimuli.
3. Dishabituation: If infants can discriminate between the two stimuli, they will show an increased response (e.g., looking time or attention) to the second stimulus compared to their response to the habituated stimulus. This increased response is known as dishabituation and indicates that the infants are capable of differentiating between the two stimuli.
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One study of newspaper reporting found that around ______ of homicides received the vast majority of all media attention.
Answers
One study of newspaper reporting found that around 5% of homicides received the vast majority of all media attention.
This is further explained below.
What are homicides?Generally, The common law legal word for a homicide that is judged by the law to be less responsible than murder is known as manslaughter.
It is often believed that the ancient Athenian legislator Draco created the difference between murder and manslaughter in the seventh century BC. Draco is credited with making this distinction.
In conclusion, According to the findings of one research that analyzed the reporting in newspapers, just around five percent of murders got the overwhelming bulk of media attention.
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complete question
One study of newspaper reporting found that around ______ of homicides received the vast majority of all media attention.
A. 10%
B. 5%
C. 20%
D. 15%
The air masses that originate in low latitude are called
a) polar b) tropical c) continental d) marine
Answers
The air masses that originate in low latitude are called b) tropical.
Air masses are large bodies of air with similar temperature and humidity characteristics. The air masses that originate in low latitudes near the equator are called tropical air masses. These air masses are typically warm and moist due to the high temperatures and abundant moisture present in tropical regions. As these air masses move away from the equator, they can influence weather patterns and climate in the regions they encounter.
Tropical air masses are important in shaping weather conditions in many parts of the world, particularly in tropical and subtropical regions. When tropical air masses interact with other air masses, such as polar air masses, it can lead to the formation of weather systems, including fronts, storms, and precipitation. Understanding the characteristics and movement of tropical air masses is essential for meteorologists and climatologists in predicting weather patterns and studying climate dynamics.
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Which explanation is best supported by the numbers in the chart?
Lion and cheetah populations compete for the food source of zebras, and lions outcompete cheetahs.
The dwindling zebra population has led to the decline of the predator lion and cheetah populations.
Overhunting of lion and cheetah populations has led to a decline in the food source population.
Lion and cheetah populations compete for the food source of zebras, and cheetahs outcompete lions.
Answers
Answer:
The dwindling zebra population has led to the decline of the predator lion and cheetah populations.
Explanation:
The decrease in zebra population also decreases the population of the predator lion and cheetah because both predators depends on zebra for their survival. Both predators used zebra as a source of food for their growth and survival so if there is high availability of zebra so the population of Lions and cheetah also increases while on the other hand, if there is decrease in zebra population, the population of lion and cheetah also decreases because of less available food for them.
Answer:
B) The dwindling zebra population has led to the decline of the predator lion and cheetah populations.
Explanation:
2021 edge :)
i need help with my lab report please! it’s due today and it’s about rocks and fossils
Answers
Sedimentary rocks
Rocks formed from deposition of materials ("sediment"), usually by water (lakes, seas, rivers), but sometimes by wind (deserts). The depositional environment can be characterized by it’s levels of oxygenation and energy. A high-energy environment is one in which the water is fast-moving and agitated, able to carry particles of large grain sizes; typically this occurs in shallow lakes & seas and in rivers, as well as deserts. Conversely, a low-energy environment is one in which the water can be very deep and quiet; it can only carry the finest grain sizes (if any!). The oxygen levels in the depositional environment correlate roughly with the energy levels (high-energy = high oxygen); high-energy water is well-agitated and contains much oxygen, whereas low-oxygen water is usually low-energy (either deep, or stagnant, as in some ponds and lakes).
Clastic sediments
Consist of fragments (clasts) of pre-existing rocks, which have been transported and deposited by physical processes (e.g. sandstone, mudstone).
The grainsize depends almost entirely on the water energy (high-energy => large grainsize). Dinosaur bones are most likely to be found in clastic sediments.
Enamel is the hardest substance in the human body. Justify your answer.
Answers
Enamel is indeed the hardest substance in the human body. It is present in teeth of humans. It covers every tooth and provides the hard layer.
Tooth Enamel is hard glossy substance that is comprised of calcium and phosphate mineral crystals which in return makes our teeth more stronger. Teeth enamel care is extremely important to maintain the oral health of teeth.
Tooth Enamel is one of the major tissue that make up tooth in humans. It covers the top layer of the teeth known as Crown. Calcium hardens the tooth enamel. Enamel contains 96% of the minerals. The color of Enamel varies from light yellow to white.
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which process is missing from the water treatment plant? chlorine is added to kill any bacteria or microorganism that may be in the water. dirt and other sediment in the water attach themselves to the alum to form floc. heavy particles settle to the bottom after alum is added to the water and before the water is piped to the filtration beds. water passes through layers of sand, gravel, and charcoal to filter out even smaller particles.
Answers
The missing process in the water treatment plant is disinfection.
While it is mentioned that chlorine is added to kill bacteria or microorganisms, it is not explicitly stated that the water undergoes a disinfection step after filtration. Disinfection is a crucial process in water treatment to ensure the elimination of any remaining pathogens or harmful microorganisms that may be present in the water.
Common methods of disinfection include the use of chlorine, chloramine, ozone, or ultraviolet (UV) light. Therefore, the missing process in the water treatment plant is disinfection.
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tattoos consist of ink injected into the skin. do you think that the ink is injected into the epidermis or the dermis? what support do you give for your answer
Answers
Since the ink-needle for the tattoo penetrates 1.5 to 2 mm below the skin surface, therefore it can be stated that the ink is injected into the dermis through the epidermis.
Dermis is the inner part of the two layers of the skin. It is present on the inner side and comprises of connective tissue, blood vessels, oil and sweat glands, nerves, hair follicles, and a few other structures. The dermis can be divided into two parts: thin upper layer called papillary dermis, and a thick lower layer called reticular dermis.
Epidermis is the outermost part of the skin. It serves the function of protection from external environment. The pigment melanin is also present in the epidermis. It prevents the loss of moisture from the skin as well.
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Worms live in a habitat of wet soil which of the following scientist is most likely to have believed that worms are made of soil
Answers
Which of the following is the best description of a chemical reaction?
Answers
Answer:
When two molecules collide with enough force, old chemical bonds are broken and new bonds form, resulting in one or more new substances.
a cell has eight chromosomes in g1 of interphase. how many chromosomes will be found in anaphase of mitosis?
Answers
Which provides the correct procedure when converting a number from scientific notation to standard notation?
Answers
Answer:
i think second one
Explanation:
Why do grasshoppers blend with the grass or bush?
Answers
do nucleotide bonds dehydrate plants? i just need a yes or no answer
Answers
Answer:
no
Explanation:
idk
Try it
12ty
(-1.5, 10.4)
For which values is the graph decreasing? Check all
that apply.
8
between x = -3 and x = -1.5
between x = -1.5 and x = 0
O between x = 0 and x = 1.5
.x
between x = 1.5 and x = 3
-2
2.
4
-4
-8
(1.5, -10.4)
-12
Answers
Answer:
B and C
I just took the test
What DNA analysis can be used to determine species of a particular animal? For example, dolphins.
Answers
Answer:
Scientists identify an animal species from a sample of its DNA using a specific gene, known as cytochrome c oxidase
2. The five Climate zones are:
polar, deciduous, hot and dry, rainy, and cold deserts.
Antarctica, equator, deciduous, rain forest, and deserts.
tropics, temperate, polar, sub-tropic, and sub-polar.
tropics, subtropics, temperate , sub-polar and polar.
Answers
Answer:
C
Explanation:
tropics, temperate, polar, sub-tropic, and sub-polar.
Pls help meee I’m stuck
Answers
Answer: it is b
Explanation:
Why is respiration essential for living things?
Answers
Answer:it is need so the exchange of gases can take place.
Explanation:
what is the measurement of the osmotic pressure gradient between two fluid compartments?
Answers
The measurement of the osmotic pressure gradient between two fluid compartments is determined by the difference between their respective solute concentrations.
What is osmotic pressure?
Osmotic pressure is a term used to describe the amount of pressure that must be applied to a solution to avoid water from moving through a semipermeable membrane from a region of low solute concentration to a region of high solute concentration.
The pressure exerted by a solution on a semipermeable membrane as a result of the difference in solute concentrations between the two sides of the membrane is referred to as osmotic pressure.
What is a concentration gradient?
A concentration gradient is a measure of the difference in concentration of a solute between two separate regions. The rate at which the concentration of a solute changes as a result of the solute's movement is determined by the concentration gradient. The greater the difference in solute concentration between the two regions, the greater the concentration gradient.
What is a solute?
A solute is a substance that dissolves in a solvent, creating a solution. A solution is a homogeneous mixture of two or more components. In a solution, the solute is the component that is present in the smallest amount. The solvent is the component that is present in the largest amount.
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What is the chemical equation that shows the dehydration synthesis that creates the following
triglyceride? Two of the fatty acids are С6H12O2 and the third is C5H8O2.
Answers
2CH3-CH2-CH2-CH2-CH2-COOH + CH3-CH=CH-CH2-COOH
+ OH-CH2-CH(OH)-CH2-OH-->
identify at least two ways photoperiodism and phototropism are similar. what makes them different
Answers
Photoperiodism and phototropism are both responses of plants to light, and they share some similarities in terms of their effects on plant growth and development. One of the similarities is that both processes involve plant receptors that sense light, and they trigger specific physiological responses in plants.
Another similarity is that both photoperiodism and phototropism are influenced by the intensity and duration of light exposure. For example, in photoperiodism, the length of exposure to light determines the plant's developmental stage, while in phototropism, the direction and intensity of light influence the plant's growth towards or away from the light source.
However, there are also some differences between photoperiodism and phototropism. The main difference is that photoperiodism is a response to the duration of light exposure, while phototropism is a response to the direction of light. Photoperiodism controls the timing of key developmental stages, such as flowering, while phototropism controls the orientation of plant growth.
Additionally, photoperiodism is more sensitive to changes in day length, while phototropism is more influenced by the direction and intensity of light. Finally, photoperiodism is a universal response in plants, while phototropism is observed only in certain plant species.
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Thinking back to the Darwin and Evolution material, bacteria provide evidence of micro evolution: we can observe them evolving on a scale that a human can see in a lifetime. What trait of bacteria supports this?
Their ability to release endospores
Their ability to live in the soil
Their ability to reproduce quickly
Their ability to live as a parasite
Answers
Their ability to reproduce quickly supports the observation of microevolution in bacteria. Therefore, the correct option is C.
What is microevolution?Microevolution is the process of small-scale genetic changes that occur within a population over a relatively short period of time.
Bacteria have a very short generation time, and they can produce multiple generations in a short period. This means that mutations and genetic changes can accumulate and spread through the population rapidly, leading to observable changes in the population over a short period.
Additionally, bacteria can acquire new genetic material through horizontal gene transfer, further contributing to their rapid evolution. Therefore, the correct option is C.
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The question is incomplete, but most probably the complete question is,
Thinking back to the Darwin and Evolution material, bacteria provide evidence of microevolution: we can observe them evolving on a scale that a human can see in a lifetime. What trait of bacteria supports this?
A.Their ability to release endospores.
B. Their ability to live in the soil
C. Their ability to reproduce quickly
D. Their ability to live as a parasite
The scales shown in the introduction measure mass or the amount of matter in a particular object. The scientific law of conversation of mass states that matter can both be created or destroyed during a chemical reaction but it can change from one form to another. Did the simulation support this scientific law? Explain why or why not.
Answers
The simulation of a chemical reaction does support the scientific law of conversation of mass that states that matter can neither be created nor destroyed but it can change from one form to another.
The scientific law of conservation of mass states that matter can neither be created nor destroyed but it can change from one form to another. This means that the mass of the reactants and the products must be the same, i.e., mass cannot be lost or gained.
For example, when the wood is burned, the products formed are ash, water vapour, and carbon dioxide. The mass of the ash, water vapour, and carbon dioxide formed during the combustion of wood is the same as the mass of the wood that was burned.
The simulation of a chemical reaction supports this scientific law as it has been observed that the mass of the reactants in a chemical reaction is equal to the mass of the products formed during the chemical reaction. Even if the products appear to have a different mass than the reactants, it is only because the mass has changed from one form to another, and not because the mass has been destroyed or created.
For instance, in the process of rusting, iron and oxygen react to form rust, which is hydrated iron(III) oxide. The mass of the iron and oxygen involved in the chemical reaction is equal to the mass of the rust formed. In conclusion, the scientific law of the conversation of mass states that matter can neither be created nor destroyed but it can change from one form to another, which is supported by the simulation of a chemical reaction.
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a.) what purpose does it serve to warm the extraction buffer and tissue sample?
b.) what is the function of guanine hydrochloride?
c.) how does 95% ethanol help precipitate DNA?
Answers
a.) Warming the extraction buffer and tissue sample helps to facilitate the breakdown of cell membranes and release of DNA from the nucleus. The heat helps to disrupt the bonds between the DNA and proteins, making it easier for the DNA to be extracted.
b.) Guanine hydrochloride is a salt that is often added to DNA extraction buffers to aid in the purification of DNA. It helps to remove contaminants and other unwanted substances from the sample, leaving only the DNA behind.
c.) 95% ethanol is added to the DNA sample to help precipitate the DNA out of solution. DNA is not soluble in ethanol, so when it is added to the sample, the DNA molecules will clump together and become visible as a white, stringy material. This allows the DNA to be easily collected and purified for use in further experiments.
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What are the challenges facing the world in terms of epidemics and pandemics?
Answers
Answer:COVID MONKEY POX
Explanation:COVID MADE US STAY INSIDE ALL YEAR MONKEY POX GOT PPL SCARED I THINK THESE THE BEST TWO ANSWER.
Consider the following two statements about succession.
Student 1:
Matthew - As succession begins, communities tend to be dominated by mostly K-selected species. As succession continues, r-selected species tend to compete better and therefore become more and more common.
Student 2:
Iman - As succession begins, communities tend to be dominated by mostly r-selected species. As succession continues, K-selected species tend to compete better and therefore become more and more common.
Which student is correct?
a. Provide a rationale for your answer (2 marks)
b. Provide a specific example of succession which includes at least one example of an r-selected and one example of a K-selected species. (1 mark)
Note - No marks are earned by simply agreeing with either Matthew or Iman