The discovery of fossils in rock layers meant that they could better estimate the relative age of rocks based on fossils. Option B
What are fossils?The term fossils is used to describe the organisms that have lived and died whose remains could be found in rock formations around the work. We know that intricate records of the organism that have existed on the earth over time could be found in rocks.
The ages of these organisms play a key role in the determination of the age of the rock and ultimately the age of the earth. The earth has been found to be much older than the 6000 years estimate given in the question.
As such, the discovery of fossils in rock layers around the globe helped scientists to better estimate the relative age of rocks based on fossils.
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The cardiovascular system does NOT
carry the carbon dioxide exhaled by the pulmonary system.
carry the oxygen used by the muscles.
carry the nutrients absorbed by the digestive system.
carry the hormones released by the endocrine system.
control when muscles contract.
Answer:
transports oxygen and carbon dioxide for the respiratory system.
which sentence best describes a monarch butterfly as a living system that is one part of a more complex system.
A it has four distinct life stages: egg, larva pupa, and adult
B its wings are covered in thousands of scales and tiny hairs.
C it can live for up to five weeks during the summer
D it interacts with other individuals in the monarch population
The sentence which describes a monarch butterfly as a living system that is complex is that it has four distinct life stages: egg, larva pupa, and adult and is denoted as option A.
What is a Complex system?This is referred to as a system which has different types of components which are interconnected or interrelated with one another and in this case are the four distinct life stages of a monarch butterfly.
They undergo complete metamorphosis which is characterized by the development from the egg to the larva pupa, and adult stages thereby making it a part of a more complex system.
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Drag the tiles to the correct boxes to complete the pairs.
Match each set of values of a function to the pair of points that satisfy the function.
rate of change = -1, and initial value = 7
rate of change = -0.5, and initial value = 5
(4, 3) and (6, 7)
(2, 10) and (5, 19)
(2, 5) and (5,2)
(2, 4) and (4, 3)
rate of change = 2, and initial value = -5
rate of change = 3, and initial value = 4
After matching each set of values of a function to the pair of points that satisfy the function, we get
1-4
2-2
3-1
4-3
(4,3) and (6.7) rate of change = 2, and initial value = -5
k= 7-3/6-4 = 2, y=2x-5
(2,10) and (5, 19) rate of change=3, and initial value = 4
k= 19-10/5-2 = 9/3 = 3, y=3x+4
(2,5) and (5.2)→ rate of change = -1, and initial value = 7.
k= 2-5/5-2 = -3/3 = -1, y= -x+7
(2.4) and (4,3) →→ rate of change = -0.5, and initial value =5
k= 3-4/4-2 = -1/2 =-0.5, y=-0.5x+5
The set of input values and the set of output values for a function each have their own names. The domain of the function is the collection of input values. The range of the function is the collection of output values.
Correct question: Drag the tiles to the correct boxes to complete the pairs. Match each set of values of a function to the pair of points that satisfy the function. rate of change = -1, and initial value = 7 rate of change = 2, and initial value = -5 rate of change = -0.5, and initial value = 5 rate of change = 3, and initial value = 4 (4, 3) and (6, 7) arrowRight (2, 10) and (5, 19) arrowRight (2, 5) and (5, 2) arrowRight (2, 4) and (4, 3) arrowRight
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Which of the following is NOT one of the characteristics shared by
all living things?
Living things reproduce.
Living things respond to their environment.
Living things are made of cells.
Living things always need a host to live in.
Explanation:
Living things always need a host to live in.
The shoulder joint is an example of which functional class of joints?
A. Cartilaginous joint
B. Slightly moveable joint
C. Fixed joint
D. Synovial joint
According to the research, the correct option is D. The shoulder joint is an example of which functional class of Synovial joints.
What are synovial joints?They are joints in which there is a viscous substance, called synovial fluid, which allows proper sliding and prevents friction between the joint components.
In this sense, the shoulder joint is called a synovial joint due to the presence of viscous fluid and an enarthrosis, that is, they allow rotation, flexion, extension, abduction, adduction and circumduction movements.
Therefore, we can conclude that according to the research, the correct option is D. The shoulder joint is an example of which functional class of Synovial joints.
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Where do all stars begin their evolution
Answer:
Stars are hot bodies of glowing gas that start their life in Nebulae.
Explanation:
They vary in size,mass and temperature, diameter ranging 450X smaller to over 1000X larger than that of the Sun.
Hint: What determines the identity of an atom?
Answer: by the Number of protons
Explanation:
The number of protons in the nucleus of an atom is its atomic number (Z).
Hope it helpsDertemine the maximum volume of the air breathed in during the period of rest for each minute
The maximum volume of air breathed in during the period of rest for each minute is 500 ml also known as tidal volume.
Tidal volume is simply each breath a person takes. It is a significant factor in both minute and alveolar ventilation. The quantity of air that enters the lungs each minute is measured by minute ventilation also referred to as total ventilation. It is a function of both tidal volume and respiratory rate.
A physiological term called tidal volume (Vt or TV) is used to indicate how much air is generally moved during inspiration and expiration when you are at rest. Spirometry, a non-invasive test, is used to measure it. Adults breathe on average seven milliliters (mL) every kilogram (kg) of ideal body weight.
When it comes to configuring the ventilator in critically ill patients, tidal volume is crucial. Delivering a tidal volume that is both large enough to sustain proper breathing and small enough to prevent lung trauma is the objective.
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identify the independent variable and dependent variable in the scientific method PLEASEEEE I NEDDD HELLPPP
Answer:
The independent variable is the variable that is not changing (in other words its outcome does not depend on another variable), the dependent variable is the one whose outcome is dependent on the other variable
Explanation:
2. Upon being diagnosed with Cirrhosis of the liver, doctors urge patients to limit the amount of salt intake in their diet to help decrease the rate of scarring. During salt intake the blood becomes increasingly (hypertonic, hypotonic) to the interstitial fluid. Due to this osmotic imbalance, the liver cells become (hypertonic, hypotonic) to the interstitial fluid. This causes the liver cells to appear (shriveled, swollen). (3pt)
The liver also produces a protein called albumin, which is responsible for maintaining osmotic pressure inside the blood plasma compartment of the body. Over time scarring of the liver leads to a decreased production of this protein. When the levels fall, the blood plasma becomes (hypotonic, hypertonic) to the interstitial fluid. Due to this osmotic imbalance, the tissues become (hypertonic, hypotonic) which leads to fluid seeping from the legs and feet. (2pt)
The correct option about the states of the liver are:
HypertonichypertonicswollenhypotonichypotonicWhat are hypertonic and hypotonic solutions?Hypotonic solution are solutions that have lower solute concentration that the interior of a cell or the cytosol of the cell. Water flows into the cell when they are placed in hypotonic solutions.
Hypertonic solution are solutions that have higher solute concentration that the interior of a cell or the cytosol of the cell. Water flows out of the cell when they are placed in hypertonic solutions.
During salt intake the blood becomes increasingly hypertonic, to the interstitial fluid. Due to this osmotic imbalance, the liver cells become hypertonic to the interstitial fluid. This causes the liver cells to appear swollen.
The liver also produces a protein called albumin, which is responsible for maintaining osmotic pressure inside the blood plasma compartment of the body. Over time scarring of the liver leads to a decreased production of this protein. When the levels fall, the blood plasma becomes hypotonic, to the interstitial fluid. Due to this osmotic imbalance, the tissues become hypotonic which leads to fluid seeping from the legs and feet.
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Julia, an economics professor, is giving a presentation on her research. What presentation delivery method should Julia use if she wants to broadcast her lecture to various places in real time?
A.
external monitor
B.
overhead projector
C.
presentation sharing website
D.
webcast
Answer:Webcast
Explanation:Plato
A stream of water holds thriving bacteria. If drought conditions caused the stream to dry up, how would the bacteria mostly likely respond to survive?
A.
They would learn how to photosynthesize.
B.
They would produce more peptidoglycan.
C.
They would secrete more polysaccharides.
D.
They would produce endospores.
The correct answer is they would produce endospores.
Bacteria are growing in a water stream. Bacteria would most likely respond by producing endospores in order to live if drought caused streams to dry up.
When bacteria are exposed to hard circumstances, endospores are produced as a kind of defence.
Until the external conditions are conducive for their development, bacteria produce a hard outer coating that makes them appear inactive.
The endospores are hardy, latent, and non-reproductive bacterial spores that guarantee bacterial survival under challenging circumstances. Numerous bacteria produce dormant endospores in response to environmental stressors such hunger, desiccation (extreme dryness), radiation, and chemical treatment. When the circumstances are right, these endospores grow once again.
Therefore, the bacteria that reside there would develop endospores to survive if drought circumstances caused the stream to dry up.
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1. A complex individual that consists of organ systems is known as a/an
A. community.
B. population.
C. organism.
D. tissue.
E. species.
2. All of the ecosystems on the planet together are called the
A. atmosphere.
B. hydrosphere.
C. biosphere.
D. lithosphere.
E. stratosphere.
3. Which of the following statements most correctly defines homeostasis?
A. All living organisms are alike.
B. Living organisms do not change much over time.
C. Human beings and other animals acquire materials and energy when they eat food.
D. It takes energy to maintain the organization of the cell.
E. Cells and organisms must be able to maintain a fairly constant internal environment.
4. Four million years ago, horses were rather small compared to today's horses and had relatively stocky bodies
with a straight shoulder and thick neck. This statement is an example of which biological concept?
A. metabolism
B. evolution
C. development
D. homeostasis
E. reproduction
5. Which of the following is not a basic characteristic of all living things?
A. Living things are organized.
B. Living things acquire materials and energy.
C. Living things contain a nucleus and organelles.
D. Living things reproduce.
E. Living things grow and develop.
6. Choose the CORRECT order (1-5) of increasing complexity/organization.
A. (1) tissues, (2) organ systems, (3) cells, (4) organs, (5) organism
B. (1) cells, (2) organ systems, (3) tissues, (4) organs, (5) organism
C. (1) tissues, (2) organs, (3) organ systems, (4) cells, (5) organism
D. (1) cells, (2) tissues, (3) organs, (4) organ systems, (5) organism
E. (1) organism, (2) organ systems, (3) organs, (4) tissues, (5) cells
1. Correct answer is C. An organism with several different organ systems.
An example of a multicellular organism with an organization is a tree or a cat, which has tissues, organs, and organ systems. Tissues made up of similar cells form organs, organs with similar functions form organ systems, and tissues made up of similar cells form tissues.The eleven organ systems that make up the human organism, or the entire living being, function at the organismal level, which is the most complex level of structure.2. Correct answer is C. The earth's atmosphere, lithosphere, hydrosphere, and cryosphere are all referred to as the geosphere or biosphere. The area above the Earth's surface is known as the atmosphere.
3. Correct answer is E. The ability of an organism to keep the body's internal environment within bounds that enable it to survive is referred to as homeostasis.
4. Correct answer is B (evolution). The horse progressively gained larger body size (perhaps to better protect against predators), taller-crowned teeth to handle abrasive grasses, and long, monodactyl limbs to run away from predators in their increasingly open habitat. This is how the famous account of horse evolution came to be.
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Which of the following correctly relates the cell structure to its function in plant cells?
vacuole – protein synthesis
ribosome – waste disposal
nucleus – lipid storage
mitochondria – sugar conversion
Mitochondria sugar conversion correctly relates the cell structure to its function in a plant cell.
Cell:The cell is the basic unit of life. There are two types of cells plant cells and animal cells. animal cell do not have a cell wall. Vacuole is the membrane bound organelle.
A vacuole is an organelle performs various functions such as to store water, remove and store harmful foreign products and store nutrients such as lipids, proteins and carbohydrates.
Ribosomes are the complex cells found in living cell which helps in protein synthesis. Ribosomes have two more functions for protein synthesis in cell.
Nucleus is the located in the center of the cell. It contains genetic material of the cell. DNA is the genetic material found in eukaryotes and RNA is the genetic material in the Prokaryotes such as virus.
Mitochondria is the powerhouse of the cell. It produces energy from the glucose. ATP is the energy unit for a cell.
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1. Explain how human activity other than deforestation may disrupt the natural carbon cycle.
2. Suggest how human disruption to the carbon cycle can be minimized
Human activities that disrupt the carbon cycle could be minimized by;
Decreasing deforestationReducing of not eliminating the use of fossil fuelsWhat is the carbon cycle?The carbon cycle refers to the process of the movement of carbon in nature. We know that materials such as elements and compounds move round the ecosystem in the biogeochemical cycles.
This entire process is balanced save for human interferences. Human interferences include deforestation which removes the natural carbon sinks and the use of fossil fuels which inflates the amount of carbon in the atmosphere.
We know that human activities have weighed down very heavily on the balance of carbon in nature and this has caused a lot of imbalance that have eventually let to a myriad of environmental challenges that exists on earth.
Human activities that disrupt the carbon cycle could be minimized by;
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Georgio is jogging barefoot along the beach when he suddenly steps on the sharp edge of a broken shell. He instantly feels pain due to the message carried to his brain by ____. He then slowly walks home with an achy foot. The message of the ache is carried by ____.
Georgio is jogging barefoot along the beach when he suddenly steps on the sharp edge of a broken shell. He instantly feels pain due to the message carried to his brain by dendrites. He then slowly walks home with an achy foot. The message of the ache is carried by neurons.
The nervous system has electrical cells that are trained to transmit and receive messages. Through the use of electricity, people can communicate by transmitting messages to one another. This voltage is produced in neurons by the movement of charged ions. salt atoms with positive or negative charges that pass through the cell membranes and cross the cell's outer membrane. The neuron has dendrites, which are branches (like a tree) that receive messages, and an axon, which is a longer, more straightforward projection (like a tree trunk), that sends information. Synapses. Axon ends include the neuron communication junction, where vesicle fusion releases chemical signals. Neurotransmitters are the chemical messages that the nerve cell releases.
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skin cancer description
Which characteristic of life is responsible for maintaining an organism's internal environment?
A. homeostasis
B. metabolism
C. response
D. heredity
Answer:
Homeostasis.
Living organisms regulate their internal environment to maintain the relatively narrow range of conditions needed for cell function.
Explanation:
Please mark me as brainliest.
This graph shows that-
Pepsin is an enzyme which breaks down proteins into smaller peptides.
The enzyme trypsin, located in the first section of the small intestine, starts the breakdown of protein molecules by chopping these long chains of amino acids into smaller pieces.
This graph shows that-
The graph below displays the rate of Trypsin and Pepsin enzyme activity in relation to ph. Both enzymes disintegrates molecules in the food that the body absorbs.
Pepsin is one among the primary digestive enzymes in the digestive systems of humans and many other animals, where it aids in the breakdown of the proteins in food. It is produced in the gastric chief cells of the stomach lining. It is produced by the gastric glands of the stomach which works in an acidic environment.
In the digestive systems of several animals, trypsin, a serine protease from the PA clan superfamily, hydrolyzes proteins. It is produced by the exocrine glands of the pancreas and works in an alkaline environment.
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5. To reduce one molecule of O2,
________ electron(s) must be passed
through the electron transport chain and
________ molecule(s) of NADH is(are)
oxidized
a. 1; 1
b. 4; 4
c. 1; 2
d. 4; 2
Answer:
d. 4; 2
Explanation:
To reduce one molecule of O2, 4 electrons must be passed through the electron transport chain and 2 molecules of NADH are oxidized. So the correct option is D.
What is the electron transport chain?
A chain of compounds known as the "electron transport chain" uses the electrons from an electron carrier to create a chemical gradient. It could function as the fuel for oxidative phosphorylation. The molecules that make up the chain include peptides, proteins, enzymes, and other substances.
Oxidative phosphorylation is a highly effective way for producing large amounts of ATP. A crucial component of the metabolic process is ATP. ATP is produced as a result of the transport of electrons from the electron acceptor to the electron donor. In the electron transport chain, it is one of the crucial stages. The most ATP is created in this phase of cellular respiration compared to any other phase.
Therefore the correct option is D.
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Algae in an aquatic food chain convert solar energy into 93,000 kilocalories of plant tissue.
Which of the following values best represents the amount of energy available for secondary consumers in the food
chain?
(A) 930 kilocalories
(B) 9,300 kilocalories
(C) 93,000 kilocalories
(D) 930,000 kilocalories
Algae in an aquatic food chain convert solar energy into 93,000 kilocalories of plant tissue. 930 kilocalories represents the amount of energy available for secondary consumers in the food chain.
The transfer of 93,000 kilocalories to the secondary consumer is done by the 10% law. The 10% rule states that ''10% of the energy transfer occurs from one trophic level to the following one after it. The remaining energy is lost during energy transfer and respiration. The most energy is found in the first trophic level.
Transfer of 93,000 kilocalories to the primary consumer can be calculated by,
Energy available for Primary Consumer= [tex]\frac{93,000 kcal x 10}{100}[/tex] = 93,00 kcal
Transfer of 93,00 kilocalories to the secondary consumer can be calculated by,
Energy available for Secondary Consumer= [tex]\frac{9300 kcal x 10}{100}[/tex] = 930 kcal
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Small insects fall into the pitcher plant and can not climb out due to presence of
a) nutrients
b) decomposers
c) enzymes
d) stiff hair
Small insects fall into the pitcher plant and can not climb out due to presence of enzymes.
Because they don't rely on any other living thing to provide them with the energy they need to function, plants are the primary producers of an ecosystem.However, there are also several carnivorous plants that hunt a variety of small insects and bugs to consume them in order to obtain the essential energy.Similar to pitcher plants, which are also common carnivorous plants, pitcher plants hunt primarily using traps resembling jars and lids.When there are no insects or bugs sitting on the jar-like structure, it is always opened. A lid-shaped leaf tightly encloses the jar trap once the beetle or insect has settled on that jar-like structure.Additionally, the digestive enzyme fluid included within this trap aids in the digestion of the insects and other pests caught inside the plant.Therefore, option C. is correct.
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For each of the following scenarios, describe the most likely pathway from beginning of synthesis (when peptide bonds are made) to final location for
a protein. Include short descriptions of key steps. The scenarios are: a protein that floats freely in the cytoplasm; a protein that is in the lumen (liquid
interior) of a lysosome; a protein that is secreted from a cell; and a protein that is imbedded in the plasma membrane of a cell.
Both the nucleus and the cytoplasm of a cell are the sites where protein synthesis takes place. A DNA template is used to create RNA in the nucleus. The translation is then carried out by this RNA in the cytoplasm.
Transcription and translation are the two processes that make up protein synthesis. A segment of DNA called a gene, which codes for a protein, is transformed into a template molecule called messenger RNA during transcription (mRNA). In the cell's nucleus, enzymes referred to as RNA polymerases perform this conversion. [2] Eukaryotes make this mRNA prematurely at first (pre-mRNA), which then goes through post-transcriptional changes to produce mature mRNA.
Nuclear pores allow the mature mRNA to be evacuated from the cell nucleus and transported to the cytoplasm, where translation can take place. Ribosomes read the mRNA during translation, using its nucleotide sequence to infer the order of the amino acids. To create a polypeptide chain from the encoded amino acids, the ribosomes catalyse the production of covalent peptide bonds. After translation, the polypeptide chain needs to fold in order to create a functioning protein. For instance, for an enzyme to work properly, the polypeptide chain needs to fold properly in order to create a functional active site. The polypeptide chain initially forms a series of smaller underlying structures termed secondary structures before it can assume a useful three-dimensional (3D) shape.
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(04.02 MC)
Regions that have similar climate characteristics can be widely spread apart, but typically have which of the following in common?
Biomes are geographical areas with comparable climatic conditions and dominant plant species.
The tropical forests, savannas, deserts, temperate grasslands, temperate deciduous woods, Mediterranean scrub, coniferous forests, and tundra are only a few of the major terrestrial biomes discussed in this chapter.
The five main climate zones of the world are tropical, dry, mid-latitude, high-latitude, and highland.The quantity of sunshine a location receives, its elevation above sea level, the form of the land, and how close it is to oceans are just a few of the many variables that affect its climate. The climate varies with distance from the equator because the equator receives more sunshine than the poles.Temperature and precipitation are the two main determinants of a region's climate.Due to variations in the different factors that determine the weather, such as wind speed, humidity, etc., the weather varies more frequently than climate does.Learn more about climate here:
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7. Amutualism type of relationship is different from a parasitic relationship because in mutualism, (a) both organisms involved benefit (b) none of the organisms benefits or harm each other (c) both organisms harm each other (d) only one of the organisms is harmed. The table below shows the number of some organisms in habitats W and Y. Study it and answer questions 28 to 30. Organisms Plankton Antelope Water flea Tilapia Lion Frog Grass Number in the habitat Habitat W Habitat Y 0 51 126 0 10 23 0 6 0 C 0 0 6 0 250 37 32 3
One species gain from parasitic interactions while the other loses. Medical microbiology studies a large majority of parasitic, human tissue-eating bacteria. For instance, parasitic bacteria are responsible for cholera, leishmaniasis, and giardia.
Any coexistence of two or more biological species is referred to as symbiosis. These connections are typically long-lasting and have a significant effect on the fitness of either one or both animals. The advantages and physical characteristics of symbiotic interactions are classified. In nature, relationships in which both species profit are known as mutualistic relationships. Numerous instances of mutualistic bacteria in the stomach that support digestion in both humans and animals may be found in the field of microbiology. A relationship between species known as commensalism occurs when one species benefit and the other is unaffected.
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9. Lichens are important to an ecosystem because they
help form soil
prevent tree growth
replace older communities
become unstable
Answer:
lichens are important to an ecosystem because they help form soil.
Answer: A. help form soil
Explanation: Pearson
Question 20 of 24
Which tool would a scientist use to study microscopic plants and animals
that live in the ocean?
A. A current meter
OB. A submarine
C. An autonomous underwater vehicle
OD. A plankton net
(D) A plankton net is the tool that a scientist would use to study microscopic plants and animals living in the ocean.
Marine scientists use various tools to study the ocean. A plankton net or beach seine net is a tool that is deployed to collect microscopic plants and animals including plankton, fish as well as other marine organisms in order to study them. It is generally lowered in the ocean and the scientists drag it behind a boat for gathering samples.
A current meter is a device that is used to measure current speed as well as direction in a water body.
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Recall that in a concept map, the words within the ovals are called "concepts" and the words between the ovals are called "connecting phrases." Two concepts and their connecting phrase form a sentence. For example, in the Survey the Landscape figure, one sentence that you could read is "Life consists of units called cells."
Consider what additional sentences you could add to the Survey the Landscape concept map. Each of the six sentences below contains italicized terms that represent the concepts currently in the Survey the Landscape concept map. The bold term is the concept that you are adding, which is connected to the concept map with a connecting phrase. Which of the six new sentences is true? (Select all correct answers.)
Answer:
What are the sentences
list out the six sentences
How many glycosidic bonds would be needed to combine three monosaccharides together?
A.2
B.1
C. 3
The number of glycosidic bonds that will be required to combine three monosaccharides together is 2. The correct option is A.
What is glycosidic linkage?A glycosidic bond, also renowned as a glycosidic linkage, is a sort of covalent bond that connects one carbohydrate molecule to another, which may or may not be another carbohydrate.
When the hemiacetal of a saccharide reacts with the hydroxyl group of another substance, such as alcohol, a glycosidic bond is formed.
A glycosidic bond exists between sugar and nitrogen base in the DNA molecule.
The nitrogen-carbon linkage between the 9' nitrogen of purine bases or the 1' nitrogen of pyrimidine bases and the 1' carbon of the sugar group forms the glycosidic bond.
The count of glycosidic bonds requisite to link three monosaccharides with each other is two.
Thus, the correct option is A.
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