The heart valves are protected by the endocardium, which also lines the chambers where the blood flows in Epithelium.
It is formed of endothelium, a straightforward squamous epithelium that is continuous with the blood vessel endothelial lining. The endocardium covers the whole interior surface of every heart chamber and is continuous with the blood vessel's inner layer. The lining of the heart's chambers and valves is a thin, smooth tissue called the endocardium. The so inside of the heart's walls, it protects the heart's muscles from the bloodstream and houses vital blood veins.
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The products of photosynthesis serve as…?
a the reactants for cellular respiration
b the products for cellular respiration
c the source of carbon dioxide in our atmosphere
d none of the above
The products of photosynthesis serve as food for plant (oxygen and glucose).
What is photosynthesis?Photosynthesis the method through which green plants and some other creatures produce nutrients from carbon dioxide and water using sunshine. In most cases, the green pigment chlorophyll is used in photosynthesis in plants, which produces oxygen as a byproduct.
It is a process used by plants and other living things to change light energy into chemical energy that can then be released to power the organism's activities through cellular respiration.
The fossil fuels (coal, oil, and gas) that drive modern society today were created by plants using energy from photosynthesis carried out millions of years ago.
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The products of photosynthesis serve as
a. The reactants for cellular respiration.What is photosynthesis?Photosynthesis is the process by which plants transform sunlight, water, and carbon dioxide into oxygen and sugar-based energy.
The majority of the oxygen in the atmosphere is also created by photosynthesis. The vast majority of species would disappear, there would soon be no food or other organic materials on Earth, and there would finally be very little gaseous oxygen left in the atmosphere.
Oxygen and sugar, byproducts of photosynthesis, are the reactants of cellular respiration. Cells of both plants and animals engage in cellular respiration. During photosynthesis, plants use sunlight to transform solar energy into sugar production, ATP production, and oxygen release.
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The diagram below depicts a karyotype of an individual human. Which of the following statements concerning the karyotype in the diagram is true?
If the diagram below depicts a karyotype of an individual human, then statement c. diagram illustrates the results of nondisjunction during gamete formation concerning the karyotype in the diagram is true.
What is a genetic karyotype?A genetic karyotype is a chromosome arrangement of the chromosomes in a cell, which is used to depict a picture of a person's chromosomes and thus order them into size and form.
Therefore, with this data, we can see that a genetic karyotype is used to show the chromosomes fo an individual which is very useful in the identification of diseases and genetic conditions.
Complete question:
The diagram below depicts a karyotype of an individual human. Which of the following statements concerning the karyotype in the diagram is true?
The diagram indicates an individual with an extra sex chromosome
The diagram illustrates a genetic condition found in females.
The diagram illustrates the results of nondisjunction during gamete formation.
The diagram indicates a mechanism for increasing genetic diversity in subsequent generations.
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Which of the following is not true regarding double stranded breaks (DSB)?
A. They usually arise due to exposure to UV light.
B. DSB repair is handled by the same factors involved in homologous recombination during meiosis
C. Mutations in genes involved in DSB repair can lead to cancer
D. DSB repair pathways were likely essential before genome sizes could increase in an organism
They usually arise due to exposure to UV light is not true regarding double stranded breaks (DSB).
DNA double-strand breaks (DSBs) can occur as a result of endogenous processes like DNA replication and repair as well as exogenous agents like radiation and certain chemicals.
Reactive oxygen species are byproducts of cellular metabolism that can damage DNA bases and lead to lesions that can obstruct the replication process. Double-strand breaks (DSBs) in the chromosome are the outcome.
The MRN complex (MRE11-RAD50-NBS1 [MRE11: meiotic recombinase 11, NBS1: nijmegan breakage syndrome1 protein]) recognises double-stranded DNA breaks (DSBs), and its interaction initiates a signalling cascade that causes the transcription of numerous genes involved in DNA repair.
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If you count your heart beating 135 times in one minute, what is your approximate heart rate?
Answer:
135 bpm (bpm means beats per minute but write "bpm" not the whole thing since thats the proper way)
Explanation:
You feel your heart and count how many times it beats for one minute and whatever that number is, is the approximate heart rate, or bpm
what does adp stands for
Answer: adenosine diphosphate
Explanation:
Answer: ADP stands for adenosine diphosphate
Explanation: Adenosine diphosphate (ADP), also known as adenosine pyrophosphate (APP), is an important organic compound in metabolism and is essential to the flow of energy in living cells. ADP consists of three important structural components: a sugar backbone attached to adenine and two phosphate groups bonded to the 5 carbon atom of ribose. The diphosphate group of ADP is attached to the 5’ carbon of the sugar backbone, while the adenine attaches to the 1’ carbon.
Hope this was helpful.
Starting with the European settlers, humans have introduced earthworms from Europe and Asia into North American forests. These
introductions continue through the transport of soil that contains non-native earthworms, such as during construction and through the
release of non-native earthworms used for fishing. The effects of non-native earthworms are especially large in forests that did not have
any native earthworms. For example, forests of the Great Lakes region did not previously have earthworms until humans introduced them.
When non-native earthworms are introduced, the thick layer of leaves, known as leaf litter, covering the ground disappears quickly,
thereby altering biogeochemical cycles.
What is a possible negative consequence of introducing the non-native earthworms to forests in the Great Lake regions?
A. The earthworms reduce the resources available to other animals that eat dead plant matter.
B.The earthworm decreases the
energy flow from one tropic level to the next.
C. The earthworms provide an additional food source for primary consumers.
D. The earthworms burrow,
which reduces the nutrients, flow of air, and water underground.
Answer: B .The earthworm decreases the
energy flow from one tropic level to the next. Because that makes the most sense.
Explanation:
Which of the following does not happen as the temperature of a gas
increases?
a. Molecules move faster.
b. Molecules have more collisions.
c. Kinetic energy increases.
d. Kinetic energy decreases.
A rise in overall kinetic energy, the acceleration of the speed of the individual particles.
What is the equation for one gas molecule's kinetic energy?- The formula for kinetic energy is K. E. = 32nRT, where n is the number of moles, T denotes the temperature, and R denotes the universal gas constant, R=1.9872calK1mol1. - As a result, the kinetic energy of an ideal gas mole in terms of calories is around three times its absolute temperature.
What does a molecule's kinetic energy look like?Kinetic energy is the power that a moving item possesses. The Kinetic Molecular Theory explains how molecules interact and how much energy they have. Three hypotheses regarding matter form the basis of this hypothesis. Small particles make up all matter (atoms, molecules, and ions).
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The nitrogen that is released into the Gulf of Mexico through agricultural runoff is used by the phytoplankton and algae to build which of the following types of macromolecules?
The nitrogen that is released into the Gulf of Mexico through agricultural runoff is used by the phytoplankton and algae to build biological molecules.
What do you mean by biological molecules?A biomolecule or biological molecule is a loosely used term for molecules present in organisms that are essential to one or more typically biological processes, such as cell division, morphogenesis, or development.
Biomolecules are vital for life as it aids organisms to grow, sustain, and reproduce. They are involved in building organisms from single cells to complex living beings like humans, by interacting with each other.
There are four major classes of biological macromolecules (carbohydrates, lipids, proteins, and nucleic acids); each is an important cell component and performs a wide array of functions.
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What information can be deduced from a pedigree? Select the TWO answers that are correct.
O the probability of a female being a carrier of an X-linked allele
O how an X-linked trait is passed down over generations
O the probability of a parent or grandparent being infertile
O how autosomal traits contribute to X-linked traits
O the probability that Y-chromosome analysis will prove paternity
Options A and B, the probability of a female being a carrier of an X-linked allele and how an X-linked trait is passed down over generations
A pedigree is a chart that shows the inheritance of a trait over several generations.
By analyzing a pedigree, it is possible to deduce information about the genetic makeup of family members and the probability of certain individuals being carriers of a particular allele.
Pedigrees can be used to identify X-linked traits, which are traits that are controlled by genes located on the X chromosome. X-linked traits are inherited differently than autosomal traits, and pedigrees can help to determine the probability of a female being a carrier of an X-linked allele and how an X-linked trait is passed down over generations.
However, it cannot be used to determine the probability of a parent or grandparent being infertile or how autosomal traits contribute to X-linked traits or the probability that Y-chromosome analysis will prove paternity.
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__ is a type of male singing voice resulting from castrating male singers before puberty.
A castrato is a type of classical male singing voice equivalent.
What is the name of the male vocal type that has taken the place of castrato?The castrati, which were originally meant for use in the church, were popular in operas in the 17th and 18th century. Fortunately, castrato singers are no longer in demand, and their roles are being filled by countertenors and mezzo-sopranos (often in trouser roles).
A castrato (plural: castrati) is a classical male singing voice similar to a soprano, mezzo-soprano, or contralto. The voice is generated by castration of the vocalist before puberty, or it happens in someone who never achieves sexual maturation owing to an endocrinological disorder.
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LIMITED TIME, PLEASE HELP URGENT!!!!!!!!!!
According to the biological species concept, what defines a species?
Select one:
The amount of physical similarities that a group of organisms have
in common
Whether two organisms can interbreed and produce healthy,
fertile offspring
The number of similarities two organisms have in their DNA
Whether the fossil record shows a similar lineage of ancestry
between organisms
According to the biological species concept, a species is defined as a group of organisms that can interbreed and produce healthy, fertile offspring.
Answer:
The biological species concept defines a species as members of populations that actually or potentially interbreed in nature, not according to similarity of appearance. Although appearance is helpful in identifying species, it does not define species. Appearance isn’t everything Organisms may appear to be alike and be different species.
Explanation:
The amount of water inside a cell is a higher concentration than its external environment. If the cell is to maintain homeostasis, what must happen?
If the amount of water inside a cell is higher than its external environment, the cell must prevent water from flowing out of the cell to maintain homeostasis. This is done through the use of a selectively permeable membrane and various transport proteins.
A selectively permeable membrane is a barrier that surrounds the cell and only allows certain molecules to pass through. The membrane is made up of lipids and proteins, which act as gatekeepers to control the movement of molecules in and out of the cell. The membrane is selectively permeable, meaning it allows only certain molecules to pass through, such as oxygen and nutrients, and prevents others, such as toxins, from entering the cell.
In addition to the membrane, cells also have various transport proteins that help move molecules across the membrane. Some transport proteins, such as aquaporins, are specifically designed to transport water across the membrane. These proteins allow the cell to actively pump water into the cell against the concentration gradient, which is necessary to maintain homeostasis.
Overall, in order to maintain homeostasis, the cell must prevent water from flowing out of the cell, which is done through the use of a selectively permeable membrane and various transport proteins that act as gatekeepers to control the movement of water and other molecules in and out of the cell.
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Which technique can be used to replace an endogenous gene with one constructed in vitro? O homologous recombination O non-homologous end joining O gene-disruption technology O illegitimate Submit Request Answer
Homologous recombination can be used to replace an endogenous gene with one constructed in vitro.
Homologous recombination is the genetic outcome of a physical exchange between two aligned identical DNA sections on two distinct chromosomes or on the same chromosome (HR).Most HR occurs close to the region of exchange between homologous chromosomes that have unique markers.
Any gene that consistently expresses under all experimental and developmental settings, such as genes related to metabolism, is referred to as an endogenous reference gene (HKG). This gene is also referred to as a "housekeeping gene."
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This diagram is a model that summarizes the process of photosynthesis.
Which feature of the model represents a transfer of energy?
Answer:
d is the correct answer
Explanation:
Which of the following reactions would you predict could be coupled to ATP hydrolysis to ADP + Pi?
Remember the hydrolysis of ATP has a ∆G = -7.3 kcal/mol
Select one:
a. creatine phosphate + H2O -> creatine + Pi, ∆G -10.3 kcal/mol
b. phosphoenolpyruvate + H2O -> pyruvate + Pi, ∆G -14.8 kcal/mol
c. glucose 6-phosphate + H2O -> glucose + Pi, ∆G -3.3 kcal/mol
d. glutamic acid + NH3 -> glutamine, ∆G +3.4 kcal/mol
e. glucose 1-phosphate + H2O -> glucose + Pi, ∆G -5.0 kcal/mol
d. glutamic acid + NH3 -> glutamine, ∆G +3.4 kcal/mol. ADP (adenosine diphosphate) is produced spontaneously by the hydrolysis of ATP (adenosine triphosphate) by organisms.
ATP Synthesis and Hydrolysis
An endergonic process is phosphorylation, or the condensation of phosphate groups onto AMP. Dephosphorylation, also known as the hydrolysis of one or two phosphate groups from ATP, on the other hand, is an exergonic process. A thermodynamically unfavourable reaction one that cannot proceed without the addition of energy is linked with a reaction that is thermodynamically favourable, has a negative delta G, or occurs spontaneously. The removal of a phosphate from ADP to create adenosine monophosphate also releases energy.
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If seed production had never evolved, which organisms would be missing in today's landscape? O ferns and gymnosperms only O gymnosperms and angiosperms only
O bryophytes and fems only O angiosperms and bryophytes only
gymnosperms and angiosperms only. Potonié first postulated the presence of such a class of intermediate plants between pteridophytes and seed plants in 1899.
However it is now understood that ferns are not seed plants primary relatives. Compared to previous groupings like the clubmosses and ferns, gymnosperms have a number of important evolutionary novelties. They create pollen that contains, and the wind carries it to the female. These plants are no longer dependent on water for reproduction thanks to this invention. A relatively tiny class of plants known as gymnosperms produce "open seeds" and lack flowers. This means that unlike in a fruit, where the seeds are formed inside the reproductive structure, they are produced on the surface of the reproductive structure.
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LIMITED TIME!!!!!! HELP!!!!!!!!
In the Galapagos Islands, species of tortoises have been found on
different islands that cannot interbreed. They came from the same
tortoise ancestor, but over time they became separate species
because they were on different islands. Today there are a total of 9
different Galapagos tortoise species. Which type of isolation is
this?
Select one:
A, episodic isolation
B, geographic isolation
C, temporal isolation
D, behavioral isolation
Answer: B
Explanation:
The Galapagos tortoises became separate species because they were on different islands. This is an example of geographic isolation, where the separation of physical barriers (in this case, different islands) prevents gene flow and leads to the divergence of populations and the eventual formation of new species
a) If Earth, including its atmosphere, is
defined as the system, what are the
surroundings?
b) How does this system absorb energy from its surroundings?
c) How does this system release energy to its surroundings?
GIVING BRAINLIEST
If Earth, including its atmosphere, is defined as the system, then the surroundings are all space close to the biosphere. This system (biosphere) absorbs energy from its surroundings from solar radiation. The biosphere system releases energy to its surroundings by convection, conduction, and radiation.
What is the biosphere?The biosphere is the whole ecosystem that absorbs energy in the form of radiation from the sun and it is used to carry out all activities on the earth's planet.
Therefore, with this data, we can see that the biosphere obtains energy from solar radiation and it spread into life forms through convection and conduction.
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If a scientists data are contaminated, what is the best course of action
Re-analyzing the samples and producing a fresh dataset is the recommended line of action if data is contaminated. It would take a lot of time and might cost more money to do this.
What happens if data is contaminated?For sensitive data center equipment, contamination is a constant danger. Impaired power efficiency to catastrophic equipment failure is only one of its possible repercussions.
The standard deviation among replicates can be examined as an alternative if re-analysis is not possible. The contaminated sample can be easily removed and treated as an outlier if just one replicate is contaminated and the other two are clean. The use of replicate samples is crucial, however, they cannot be used to evaluate a scientific theory's veracity.
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Complete the Data Analysis and CER. Be sure to answer ALL the bullet point questions and complete a full CER using the data provided.
Reflection and observation from the graph's data and CER;
Graph's topic is "Life expectancy at birth, by gender, years, selected countries".x-axis represents selected countries, y-axis represents age.Life expectancy is higher in some countries like Norway all the way to Chile and drops drastically in others from Czech to Bulgaria.In the next 10 years, there will be even further decline in some of those countries with low life expectancy.What is a graph?A graph is a pictorial representation or diagram that represents data or values in an organized fashion. The graph's points frequently represent the relationship between two or more things.
CER (Comparative Effectiveness Research) is the study of which clinical and public health interventions work best for improving health. This graph representing the ages of male and females in different countries show a trend of how long they are expected to live.
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Thank you to everyone! :)
Answer:
Your Welcome
Explanation:
Your Welcome!!!!! everyone here is always here to help when you really need it.
Which way will runoff water flow from your property? Where will the runoff water
collect and flow?
Generally, the way in which runoff water will flow from your property is to the area with lower elevation and collect at the lowest point and the runoff water will collect and flow in rivers etc.
What is Runoff water?This can be described as the part of the water cycle that flows over land as surface water instead of being absorbed into groundwater as a result of it no longer sufficiently rapidly infiltrating the soil.
Runoff water will flow from your property is to the area with lower elevation and collect at the lowest point and the runoff water will collect and flow in river which is why it is an important process of the water cycle in the ecosystem.
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trevor wanted to find out which type of fertalizer was the best
The best fertilizers for Trevor to use in his growing experiment of marigold is IV: Type of fertilizer, DV: Growth of marigolds and for Control: No fertilizer.
What is the benefit of fertilizer?Fertilizer provides essential nutrients to plants to support their growth and development. These nutrients include nitrogen, phosphorus, and potassium, which are necessary for the growth of roots, stems, leaves, and flowers.
Additionally, fertilizer can improve soil structure, increase water-holding capacity, and provide essential micronutrients that are important for healthy plant growth. The type of fertilizer for Trevor's experiment is Growth of marigolds (Miracle Grow, Scott's fertilizer, no fertilizer) and for control, no fertilizer(all three treatments are compared).
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The full question is:
Trevor wanted to find out what fertilizer worked best for growing marigold. He out Miracle Grow on one, Scott's fertilizer on one, and no fertilizer on the other.
what happens to carbohydates after ingestion and assimilation
During digestion, starches & sugars are broken down into single units of glucose, fructose, or galactose, which are then absorbed into the blood stream & transported to be used as energy throughout the body.
What are the seven digestion steps?
Ingestion, propulsion, manual digestion, digestion, absorption, & faeces are the digestive processes.
What is digestion and what does it do?
Food is broken down by the digestive system into nutrients like proteins, lipids, and carbs. The body can utilise them for energy, growth, and repair after they are absorbed into the bloodstream.
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What happens to plants in the absence of light? Select the TWO answers that are correct. O Chemical energy is produced using only water and carbon dioxide. O Chloroplasts use the energy in glucose to photosynthesize. O The process of photosynthesis shuts down.
O Plants stop generating chemical energy from light O Plants begin converting sugars into fats and proteins.
In the absence of light the plants stop generating chemical energy from light and The process of photosynthesis shuts down.
The process of photosynthesis is used by plants and other living things to transform light energy into chemical energy that may be released through cellular respiration to power the organism's activities.
Chemical energy is created during photosynthesis from solar or radiant energy. The rate of photosynthesis directly affects how much food is produced in agricultural crops. It furnishes the atmosphere with the oxygen that is necessary for all living things. It regulates the ecosystem's carbon dioxide and oxygen levels.
The four stages of photosynthesis include light absorption, electron transfer, ATP production, and carbon fixation. The equation for the photosynthetic process is 6CO2 + 6H2O → C6H12O6 + 6O2.
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please help!! Match the image to the phenomena it is showing. (MS-ESS1-1)
Image 1 is a solar eclipse
Image 2 is a lunar eclipse
What is an eclipse?An eclipse is an astronomical event that occurs when one celestial body, such as a moon or planet, moves into the shadow of another celestial body.
There are two main types of eclipses: solar eclipses, in which the moon blocks the sun's light from reaching the Earth, and lunar eclipses, in which the Earth blocks the sun's light from reaching the moon. These events can only happen during a new moon phase.
The kind of eclipse that has taken place can be seen when we look at the images that have been shown above.
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4. Plan an experiment that neurobiologists could use to show that an action potential travels faster along a myelinated axon than along a nonmyelinated axon.
In the experiment, two neurons are obtained; one is a myelinated axon, and the other is a nonmyelinated axon.
An action potential is induced at the dendritic end of both neurons, and the time taken for the action potential to reach the end of the neuro is recorded.
What are myelinated and nonmyelinated axons?Myelinated axons are those that have a multilayer of lipids and proteins called a myelin sheath covering them. Unmyelinated axons are those that lack a myelin coating around them.
Axons are portions of a neuron that carries nerve impulses or action potentials away from the cell body.
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Dear Teen World I feel so ugly. My face is covered in spots all the time, it's sore and red. I think it is acne but why has it happened so suddenly? Will it go away? Robert, age 14 Please help
It is to be noted that the sudden development of Acne during the teenage year is very normal. This is due to a growth stage called Puberty.
Why does the above condition occur?When hormones become active throughout puberty, oil glands are stimulated. That is why acne is more common in teenagers. Because acne is partially hereditary, if other members in your family had (or have) acne, you may be more likely to get it as well.
Teens get acne as a result of hormonal changes associated with puberty. If your parents experienced acne as teenagers, chances are you will as well. Acne, for the most part, disappears by the time a person is out of their teens.
The best approach to deal with this is to consult a dermatologist and wash your face and hands often.
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Answer:
Points
Explanation:
Face rashes,: HOW IT OCCURS.
POINTS:
Lack of bathing: People who do not bath regularly attract skin rashes on their faces. such rashes like Pimples ect. Bathing regularly can also protect your body from any face sports and also skin rashes.Malnutrition: Lack of balance diet in food. foods like fruit, and vegetables also protect your body from skin rashes it also protects your body from disease, which is found in the white blood cell called Phagocytes.Bleaching: changing pomade all the time bring rashes on your skin and also your face. Using one particular pomade all the time prevents skin rashes on the face and on the body.What physical force is best resisted by having multiple layers of oral squamous epithelium? A. Stretching B. Tension C. Abrasion D. Compression
The best defense against physical impact is having a thick layer of mouth squamous epithelium. Abrasion is indeed a physical method that involves rubbing, scrubbing, and scraping to remove microscopic rock particles through friction.
How does an abrasion appear?Abrasion is the medical name for a simple, superficial skin scratch. Examples include a scraped elbow or perhaps a rash from rubbing the skin against something abrasive like gravel, asphalt, or a shag rug.
Exactly what does a skin abrasion mean?Overview. In the wounds referred to as scrapes and abrasions, the skin has in fact been rubbed or ripped off. The majority most scrapes don't go very deep into the skin, but some can even remove many layers. The majority of scrapes do not really bleed much, but in rare occasions, they may leak a reddish fluid.
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according to.the graph above, all 4 sources inicate that the average global tempature has incresed by approximstly ___ since measured began in 1880. A: 0.5°C B: 0.7°C C: 1.2°C D: 1.5°C
According to the graph above, all 4 sources indicate that the average global temperature has increased by approximately option A. 0.5°C since measured began in 1880.
What is global temperature?Global temperature is the average temperature at Earth's surface over the course of a year. The global temperature record indicates the fluctuations of the temperature of the atmosphere and the oceans across various time range. There are various estimates of temperatures since the end of the Pleistocene glaciation, particularly during the current Holocene epoch.
Therefore, the correct answer is as given above
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