If the mass of the bacteria triples every day then 1. The mass of bacteria in the culture changes by 300 percent every day and 2. the mass of the bacteria in the culture 2 days after the start of the experiment is calculated to be 207 mg
1. The percentage of the mass of bacteria that changes every day can be calculated as follows;
Since the mass of the 23 mg bacteria triples every day, therefore, the mass the next day will be;
23 × 3 = 69 mg
Now the percent change of the mass can be calculated as follows;
percent change = (final mass / initial mass) × 100
percent change = (69 / 23) × 100
percent change = 3 × 100
percent change = 300%
2. The mass of the bacteria in the culture 2 days after the start of the experiment can be calculated as follows;
Mass of bacteria after 1 day = mass × percentage mass = 23 × (300/100) = 69 mg
Mass of bacteria after 2 days = 69 × (300/100) = 207 mg
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What records held by NASA's Apollo era, did Orion break?
*
1.It flew farther from Earth.
2.It punctured through the Earth's atmosphere faster.
3.It experienced hotter reentry temperature.
4.All of the above.
Answer:
All of the above.
Explanation:
Orion, NASA's spacecraft for human deep space exploration, has broken several records held by spacecraft from the Apollo era.
It flew farther from Earth: During its first uncrewed test flight, Orion flew farther from Earth than any spacecraft designed for humans has gone in more than 50 years. It reached a distance of 3,604 miles (5,800 kilometers) from the Earth's surface, surpassing the previous record of 3,474 miles (5,590 kilometers) set by the Apollo 17 mission in 1972.
It punctured through the Earth's atmosphere faster: Orion reached a peak velocity of 20,000 mph (32,186 km/h) during reentry, which is the fastest speed a spacecraft designed for humans has reached during reentry. This is faster than the speed of the Apollo spacecraft, which reached peak velocities of around 17,500 mph (28,164 km/h).
It experienced hotter reentry temperature: Orion reached a maximum temperature of 4,000 degrees Fahrenheit (2,204 degrees Celsius) during reentry, which is the hottest temperature any spacecraft designed for humans has experienced during reentry. This is hotter than the maximum temperature reached by the Apollo spacecraft, which was around 3,000 degrees Fahrenheit (1,648 degrees Celsius).
Which of the following processes must be performed on adult somatic cells in order to induce them to become pluripotent stem cells?
A. A retrovirus is used to introduce four master regulatory genes.
B. The adult stem cells are fused with embryonic cells.
C. The nucleus of an embryonic cell is used to replace the nucleus of an adult cell.
D. Cytoplasm from embryonic cells is injected into the adult cells.
The process of adult somatic cells in order to induce them to become pluripotent stem cells is a retrovirus used to introduce four master regulatory genes.
Thus, the correct answer is A.
What is an induced pluripotent stem cell?Induced pluripotent stem cells (аlso known аs iPS cells or iPSCs) аre а type of pluripotent stem cell thаt cаn be generаted directly from а somаtic cell.
Retroviruses provide а relаtively eаsy аnd efficient wаy of introducing fаctors into the somаtic cells. However, retroviruses rаndomly integrаte into the hosts’ genome аnd mаy therefore leаd to insertionаl mutаgenesis in the obtаined iPSCs. Furthermore, the use of retroviruses for reprogrаmming is dependent on the choice of the somаtic cell type.
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In horses, black color (B) dominates chestnut color (b). The trotting
gait (T) dominates the pacing gait (t). A cross is made between a
horse homozygous for black color and the pacing gait and a horse homo
zygous for chestnut color and the trotting gait. List the probable geno
type and phenotype resulting from such a cross. List the probable
phenotypes of offspring that could result if the offspring from the
original cross were crossed among themselves.
First Cross:
Bt Bt
bT BbTt BbTt
bT BbTt BbTt
BbTt= Black colour, trotting gait
Second Cross:
BT Bt bT bt
BT BBTT BBTt BbTT BbTt
Bt BBTt BBtt BbTt Bbtt
bT BbTT BbTt bbTT bbTt
bt BbTt Bbtt bbTt bbtt
BBTT, BBTt, BbTT, BbTt = Black colour, trotting gait
BBtt, Bbtt - Black colour, pacing gait
bbTT, bbTt = chestnut colour, trotting gait
bbtt = chesnut colour, pacing gait
Answer:
For the first one, there is only one genotype and phenotype. The genotype is BbTt with the horse showing the black color and having a trotting gait.
For the second cross, there are 9 different genotypes. They are:
BBTT, BBTt, BBtt, BbTT, BbTt, Bbtt, bbTT, bbTt, bbtt
Showing dominant for both traits: 4
Showing dominant for only color: 2
Showing dominant for only gait: 2
Showing recessive for both traits: 1
4/9 Both Dominant
2/9 Color Dominant Only
2/9 Gait Dominant Only
1/9 Both Recessive
Explanation:
You have to use a dihybrid cross for both of the crosses because there are two different traits present.
neandertals exhibit many anatomical adaptations for life in a harsh climate. below is a typical neandertal skull with several areas labeled. drag each function to the correct anatomical characteristic that carries out that purpose. (not all functions will be used.)
Large nasal aperture: warms and moistens cold, dry air, large infraorbital foramen (the small holes in the facial bones located beneath the eye orbits): increases blood flow to face.
For extra than 350 000 years, Neanderthals inhabited Europe and Asia until, in a surprising extrade with the aid of using evolutionary standards, they disappeared round 40000 years ago. This changed into at across the identical time the anatomically current human Homo sapiens emerged from Africa. The bodily developments of Homo sapiens consist of a excessive and rounded ('globular') braincase, and a distinctly slim pelvis. Measurement of our braincase and pelvic form can reliably separate a current human from a Neanderthal - their fossils showcase a longer, decrease cranium and a much wider pelvis.
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Among molluscs, which of the following traits is associated with cephalization? A) a complete gut B) segmentation C) active predation D) radial symmetry
Among molluscs. the trait associated with cephalization is active predation.
Thus, the correct option is C.
What is cephalization?Cephаlizаtion is the process in аnimаls by which nervous аnd sensory tissues become concentrаted in the "heаd." The evolution of а heаd аllows scientists to distinguish between the heаd end, or аnterior end of аn аnimаl's body, аnd the opposite end, the posterior. Аlthough cephаlizаtion is аssociаted primаrily with bilаterаlly symmetricаl species, even some of the more primitive, rаdiаlly symmetricаl аnimаls show some degree of cephаlizаtion.
All of the members of the mollusc phylum displаy bilаterаl symmetry. So, among molluscs, the trait associated with cephalization is active predation. Because generаlly molluscs do not hаve cephаlizаtion but certаin members gаined this trаit due to their аctive predаtory lifestyle.
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using your knowledge of the basic biological molecules, which of the following molecules is a glucocorticoid hormone?
A glucocorticoid hormone is cortisol molecules.
What changes does cortisol make to the body?The primary stress hormone, cortisol, elevates blood sugar (glucose), enhances the brain's ability to use it, and increases the amount of substances that can be used to repair cells.Cortisol also inhibits physiological activities that would be superfluous or harmful in a fight-or-flight situation.
What signs point to high cortisol levels?An overabundance of cortisol can cause some of the telltale signs of Cushing syndrome, along with a fatty hump between both the shoulder, a round face, or pinkish-purple stretch marks just on skin.Cushing syndrome can occasionally also cause type 2 diabetes, elevated blood pressure, or bone loss.
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What process in your body needs oxygen?
Answer:
Everyday functions of the body like digesting your food, moving your muscles or even just thinking, need oxygen. When these processes happen, a gas called carbon dioxide is produced as a waste product. The job of your lungs is to provide your body with oxygen and to get rid of the waste gas, carbon dioxide.
Explanation:
Oxygen's primary function is to provide our body with energy. It all happens within the cells, in little organelles called mitochondria which are real energy generators: they use oxygen to transform nutriments from the
Hope this helps! Can i get brainilest if im correct?
Mendel found that the allele for tallness in plants (T) is dominant to the allele for shortness (t). What would possible results be if a heterozygous plant self-fertilizes?
_____ x _____
genotypic ratio: ____ : ____ : ____
phenotypic ratio: ____ : ____
What is the probability of having a homozygous tall plant? _____
When a plant self-fertilizes, is there still genetic variation between offspring and parent? ________
If a heterozygous plant self-fertilizes, the possible results are that the offspring will be either homozygous dominant (TT), heterozygous (Tt), or homozygous recessive (tt).
The genotypic ratio for the offspring of a heterozygous plant that self-fertilizes is 1:2:1, meaning that there is a 1 in 4 (25%) chance that the offspring will be homozygous dominant (TT), a 2 in 4 (50%) chance that the offspring will be heterozygous (Tt), and a 1 in 4 (25%) chance that the offspring will be homozygous recessive (tt).
The phenotypic ratio for the offspring of a heterozygous plant that self-fertilizes is 3:1, meaning that there is a 3 in 4 (75%) chance that the offspring will have the dominant trait (tallness) and a 1 in 4 (25%) chance that the offspring will have the recessive trait (shortness).
The probability of having a homozygous tall plant is 1 in 4 (25%) if a heterozygous plant self-fertilizes.
Even when a plant self-fertilizes, there is still genetic variation between the offspring and the parent. This is because self-fertilization only involves the mixing of the genes that are present in the parent plant, and it does not create new genetic variation. Therefore, the offspring of a plant that self-fertilizes will have the same genetic variation as the parent plant, but the specific combination of genes in each individual offspring may be different from the parent.
Lava is found on the outside of the volcano true false
It could be found either on the inside or the outside so I would say yes True.
Answer:
True
Explanation:
Inside is magma outside is lava
A(n) __ is the male cell sex
Answer: A sperm is the Male cell sex
I need help please ASAP?!!!!!
Answer: Here is the answer ^^
Explanation: I have my ways ;>
what major part of a typical food chain is more or less missing from the galapagos islands
One of the major food chain missing in galapagos Islands are nutritious food such as fruits and vegetables and this may be blame due to climate change.
What is food chain?Food chain can be defined as transfers of matter and energy in the form of food from organism to organism. Most food chains start with green plants making food energy from the sun then an animal eats the plant and another animal eats that animal.
There are 2 types of food chains:
Grazing food chain Detritous food chain.Therefore most of the major food chain with less missing in galapagos islands are nutritious food such as fruits and vegetables and this may be cause due climate change.
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the least abundant cells of the epidermis are . keratinocytes intraepidermal macrophages melanocytes type i cutaneous mechanoreceptors tactile epithelial cells
The least abundant cells of the epidermis are type I cutaneous mechanoreceptors.
The epidermis is the outermost layer of the skin and is made up of several types of cells, including keratinocytes, intraepidermal macrophages, melanocytes, and type I cutaneous mechanoreceptors. Among these cells, type I cutaneous mechanoreceptors are the least abundant.
Type I cutaneous mechanoreceptors are sensory cells that are responsible for detecting light touch and pressure. They are found in the epidermis and are important for sensing texture, shape, and movement. Despite their importance for touch sensation, type I cutaneous mechanoreceptors are relatively rare in the epidermis and make up a small proportion of the cells in this layer.
Keratinocytes, intraepidermal macrophages, and melanocytes are more abundant in the epidermis compared to type I cutaneous mechanoreceptors. Keratinocytes are cells that produce keratin, a protein that helps to protect and strengthen the skin. Intraepidermal macrophages are immune cells that help to protect the skin from infection and inflammation. Melanocytes are cells that produce melanin, a pigment that gives color to the skin, hair, and eyes.
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the extent to which a test, measurement, or classification system produces the same scientific observation each time it is applied
The extent to which a test, measurement, or classification system produces the same scientific observation each time it is applied is called reliability.
The consistency with which a method assesses something is known as reliability. The measurement is regarded as accurate if it can consistently get the same result by applying the same techniques under the same conditions. You repeatedly take temperature readings of a liquid sample while maintaining the same settings.
A product, system, or service's reliability is determined by the likelihood that it will run well in a given environment for a predetermined amount of time or perform as intended. In order to assess the overall validity of a scientific experiment and strengthen the conclusions, reliability is a crucial component.
Reliability is a topic of intense and continuous debate among social and physics scientists.
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*100 POINTS* Turner syndrome occurs in females who instead of having two X chromosomes have either only one X chromosome or a fragmented X chromosome. Klinefelter syndrome occurs in males who have multiple X chromosomes. Consider the karyotype.
Which individual is shown in the karyotype?
A) male with Turner syndrome
B) male with Klinefelter syndrome
C) female with Turner syndrome
D) female with Klinefelter syndrome
Answer:
Turner syndrome may be suspected prenatally based on prenatal cell-free DNA screening ― a method to screen for certain chromosomal abnormalities in a developing baby using a blood sample from the mother ― or prenatal ultrasound. Prenatal ultrasound of a baby with Turner syndrome may show:
Explanation:
Signs and symptoms of Turner syndrome may vary among girls and women with the disorder. For some girls, the presence of Turner syndrome may not be readily apparent, but in other girls, several physical features are apparent early. Signs and symptoms can be subtle, developing slowly over time, or significant, such as heart defects.
Individuals with diabetes have a difficult time metabolizing foods that are high in ____ because their ____ doesn't secrete enough ____ to be able to take ____ out of the bloodstream for use by the muscles, brain, etc.
Individuals with diabetes have a difficult time metabolizing foods that are high in sugar because their pancreas doesn't secrete enough insulin to be able to take sugar out of the bloodstream for use by the muscles, brain, etc.
In this sentence, the four blank spaces represent the following:
sugar: This refers to simple sugars, such as glucose, that are found in many foods and are used by the body as a source of energy.pancreas: This is a gland located in the abdomen that produces hormones, including insulin, which regulates blood sugar levels.insulin: This is a hormone produced by the pancreas that helps to regulate blood sugar levels by allowing cells to take in and use glucose from the bloodstream.sugar: This refers to glucose, which is a type of sugar that is found in the bloodstream and is used by the body as a source of energy.Learn more about Diabetes here:
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A gorilla eats 13,000 calories of energy a day4,000 calories are lost as bodily waste 3,000 calories are converted to heat metabolism What PERCENT of the Calories eaten are used to biomass growth by the gorilla. (Round to the nearest tenth place. (Example 0.134=0.13)
The percentage of calories converted to biomass growth is 46.15%.
What percentage of the calorie intake of the gorilla is converted to biomass?Biomass is the biological mass of an organism consisting of the body parts and structures found in the organism.
A percentage of the energy intake of organisms is converted to biomass while the rest is converted to waste and/or is lost as heat energy.
The percentage of the calorie intake of the gorilla converted to biomass is calculated as follows:
Percentage of calories converted to biomass = (energy converted to biomass/ total energy intake) * 100%
The energy converted to biomass = 13000 - 4000 - 3000
The energy converted to biomass = 6000 calories
Percentage of calories converted to biomass = 6000/13000 * 100%
Percentage of calories converted to biomass = 46.15%
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Drag each label to the appropriate position to identify whether the given vessel directly arises from the aorta or from another (other) named vessel. Aorta Other
The main artery that transports blood from your heart to the rest of your body is called the aorta.
Explain about the aorta?The aortic valve, blood is expelled from the heart. It then passes through the aorta, forming a cane-shaped curvature that enables other major arteries to carry oxygen-rich blood to the brain, muscles, and other cells.
Your heart, lungs, brain, arms, and legs may all be impacted by the tear in the long run. This depends on where in your aorta the tear occurs. The location of the tear will also affect the course of treatment. If the tear is on the ascending aorta, surgery is very certainly required.
Massive internal bleeding from a burst aneurysm can be deadly. Approximately 8 out of 10 persons with a rupture either pass away before they reach the hospital or don't make it through surgery.
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At the knee joint the articular capsule only covers the anterior, medial, and lateral portions of the joint. A. TrueB. False
At the knee joint the articular capsule only covers the anterior medial and lateral portions of the joint True.
Each synovial joint consists of a double-layered capsule called the articular capsule. The knee joint capsule is the broad, loose joint capsule of the knee. It is thin on the front and sides and contains the patella ligaments meniscus and the bursa of the knee.
To reduce this friction all joint surfaces involved in movement are covered with a white shiny lubricating layer called articular cartilage. The articular surfaces of the femoral condyles, the tibial plateau, and the underside of the patella are covered with this cartilage. The knee joint is surrounded by a joint capsule consisting of an outer fibrous capsule and an inner synovial membrane.
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HELPP FINALS// A student placed a water plant under an apparatus that would capture any gas coming off the plant. She placed the apparatus under a light. She then brought the temperature of the water down to near 0ºC and counted the number of bubbles being produced by the plant each minute. She then increased the temperature by 5ºC and counted the number of bubbles coming off the plant. She repeated increasing the temperature and counting the bubbles until she reached a temperature of 50ºC. Her data is pictured in the graph.
What process is the student measuring in the experiment?
-cellular respiration
-replication
-photosynthesis
-translation
A student placed a water plant under an apparatus that would capture any gas coming off the plant, and the bubbles are coming out, and the student is measuring the bubble production at different temperatures. This is the photosynthesis present in the third option.
What is the photosynthesis experiment?The aquatic plant is used in the photosynthesis experiment, and in the presence of the sun's light, the plant performs photosynthesis, releasing glucose and oxygen in the form of bubbles.
Hence, the bubbles are coming out, and the student is measuring the bubble production at different temperatures. This is the photosynthesis present in the third option.
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In which location does the greatest amount of deposition occur?
location 1
location 2
location 3
location 4
Answer:
Location four
How can heritable variation increase
fitness?
A. Heritable variations always lower fitness.
B. Variations decrease the population size and make the
population less desirable to predators.
C. The inherited variations create new adaptations that
help an organism survive and pass them on. This is the answer
Answer:
C. The inherited variations create new adaptations that
help an organism survive and pass them on.
Explanation:
You already know the answer?
What do we call
variation that can
be inherited?
heritable variation this is answer
asexual reproduction
Answer: What do we call variation that can be inherited?
heritable variation
Explanation:
The term for variation that can be inherited is "heritable variation." It refers to traits or characteristics that are passed down from parents to offspring through genes. These traits can include physical features like eye color or height, as well as certain behaviors or abilities.
An example of heritable variation is hair color. If both parents have brown hair, there is a high chance that their children will also have brown hair. However, if one parent has blonde hair and the other has brown hair, there is a possibility that their children could have either hair color, depending on the specific genes they inherit.
8. Under what conditions would the concentration
of greenhouse gases decrease?
a. when sources equal sinks
b. when sources are less than sinks
c. when sources are greater than sinks
d. when anthropogenic sources are greater than
natural sources
e. when anthropogenic sinks are less than
anthropogenic sources
Answer:
a. when sources equal sinks
Explanation:
The difference between sources (emissions to the atmosphere) and sinks determines the change in a gas's concentration in the atmosphere (removals from the atmosphere). Many natural processes remove GHGs (“balance between anthropogenic emissions by sources and removals by sinks of greenhouse gases”) from the atmosphere. In the ocean, carbon dioxide (CO2) dissolves and is absorbed by plants during photosynthesis. In the atmosphere, photochemical processes are principally responsible for the destruction of methane (CH4) and nitrous oxide (N2O).
In addition to naturally occurring biological activities like breathing, human activity also produces these gases. Only when sources and sinks are equal are GHG concentrations stable.
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the role of weather and climate in disease prevalence crop production
Answer:Agriculture is an important sector of the U.S. economy. The crops, livestock, and seafood produced in the United States contribute more than $300 billion to the economy each year.[1] When food-service and other agriculture-related industries are included, the agricultural and food sectors contribute more than $750 billion to the gross
Agriculture and fisheries are highly dependent on the climate. Increases in temperature and carbon dioxide (CO2) can increase some crop yields in some places. But to realize these benefits, nutrient levels, soil moisture, water availability, and other conditions must also be met. Changes in the frequency and severity of droughts and floods could pose challenges for farmers and ranchers and threaten food safety.[3] Meanwhile, warmer water temperatures are likely to cause the habitat ranges of many fish and shellfish species to shift, which could disrupt ecosystems. Overall, climate change could make it more difficult to grow crops, raise animals, and catch fish in the same ways and same places as we have done in the past. The effects of climate change also need to be considered along with other evolving factors that affect agricultural production, such as changes in farming practices
Line graph that shows the yield in bushels per acre by year. The map calls out several events that caused significant declines in yield. Blight, wet spring and early frost, droughts, flood, and unusual climate events caused as much as and around the world. U.S. farms supply nearly 25% of all grains (such as wheat, corn, and rice) on the global market.[4] Changed temperature will depend on the crop's optimal temperature for growth and reproduction.[1] In some areas, warming may benefit the types of crops that are typically planted there, or allow farmers to shift to crops that are currently grown in warmer areas. Can change temperature , yields will decline.
Explanation: copy right
The continents of South America and Africa, where Mesosaurus fossils are located, are currently about 4,000 km apart and separated by the Atlantic Ocean. GPS measurements show that the South American Plate and African Plate are currently spreading apart from each other at a rate of 3.0 cm per year.
Mesosaurus would have been unable to swim across the continents due to physiological constraints. This shows that during the Early Permian, South America and Africa were linked.
This divergent plate motion explains why Mesosaurus fossil bones previously discovered together are now located on continents thousands of kilometers apart.
What is the Early Permian?The Permian is a geologic epoch and stratigraphic sequence that lasted 47 million years, beginning with the end of the Carboniferous Period 298.9 million years ago and ending with the beginning of the Triassic Period 251.9 million years ago.
It is the Paleozoic Era's final phase; the succeeding Triassic Period belongs to the Mesozoic Era.
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Full Question:
The continents of South America and Africa, where Mesosaurus fossils are located, are currently about 4,000 km apart and separated by the Atlantic Ocean. GPS measurements show that the South American Plate and African Plate are currently spreading apart from each other at a rate of 3.0 cm per year.
Why are Mesosaurus fossils found on continents that are now thousands of kilometers and an ocean apart?
single-cell rna-sequencing reveals widespread personalized, context-specific gene expression regulation in immune cells
A single population's stochastic changes in gene expression that may be responsible for complicated immunological responses can be found using scRNA-seq.
In order to determine the cell fate choices made by various cell subpopulations, developmental "trajectories" can be reconstructed using scRNA-seq.Identification of novel cell types and gene regulatory networks, as well as analysis of the kinetics of gene expression and patterns of allele-specific expression, are all made possible by single-cell RNA-sequencing (scRNA-seq).Different immune cell subsets can be recognised and characterised in health and disease using single-cell RNA sequencing (scRNA-seq). These immune cells' transcriptional fingerprints make it possible to identify new pathogenic drivers and biomarkers.To know more about scRNA-seq
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Which sphere of the earth are minerals the building blocks of?
Responses
hydrosphere
lithosphere
biosphere
atmosphere
a scientist investigates two types of cells located in different parts in the human body. cell a contains more mithochondria than cell b.what is the best conclusion to make from this observation?
Answer: cell a is a skeletal or cardiac muscle.
Explanation:
Mercedes is 32 years old and has three children, the oldest of whom is 16 years old. She has worked as a secretary at the same business for 10 years and describes herself as middle-aged because she is very settled, careful, and conservative. This is an example of which type of age:
A. Economic age
B. Biological age
C. Social age
D. Psychological age
The type of age that is referring to with the Mercedes example is social age. So the correct option is C.
What is social age?Social age refers to a numerical scale that measures how mature a person is in terms of interpersonal skills and the ability of this person to meet the norms of social rules regarding the roles in which each person fits. age. This is compared to other people with the same age.
The social age will reflect, more than the age itself of the person, his position in society with respect to the duties he performs within it. On top of that, this will vary from the perspective that each society has, so the social age will be quite variable and will depend on the eye that sees it. So when telling us the characteristics that Mercedes has and her position at work, she tells us more about her social age.
Therefore, we can confirm that the correct option is C. social age.
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