Purple sulfur bacteria uses hydrogen sulfide for reducing power.
Purple sulfur bacteria are a type of Proteobacteria that can photosynthesise. They are anaerobic or microaerophilic organisms that are commonly found in hot springs or stagnant water. They do not produce oxygen because, unlike plants, algae, and cyanobacteria, they do not use water as a reducing agent. Instead, they use hydrogen sulfide, which is oxidized to produce elemental sulfur granules. This can then be oxidized to produce sulfuric acid. Purple sulfur bacteria are classified into two families: Chromatiaceae and Ectothiorhodospiraceae, which produce internal and external sulfur granules and have different internal membrane structures.
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please help time limit 10 points!!!
Answer:
Carbohydrate
Explanation:
Wood is composed chiefly of cellulose, as are plant cell walls and cellulose is a carbohydrate.
an elderly women falls in the bathtub and strikes the back of her head. a head ct shows an accumulation of fluid beneath the dura, compressing the left cerebral hemisphere. which term best describes this collection of fluid? hematoma purpura congestion ecchymosis
A subdural effusion is a collection of cerebrospinal fluid (CSF) trapped between the surface of the brain and the outer lining of the brain (the dura matter). If this fluid becomes infected, the condition is called subdural empyema.
In medical terms, what exactly is a dura mater?
The dura mater is often referred to simply as the dura. It is one of the connective tissue layers that comprise the brain's meninges (pia, arachnoid, and dura, from inside to outside). It is the third and outermost layer of the meninges that protect and surround the brain and spinal cord.
Subdural fluid collections after SAH can occur due to head trauma, external hydrocephalus, or CSF shunting and craniotomies.
Therefore, when an elderly woman falls into the bathtub and strikes the back of her head, an accumulation of fluid is subdural effusion beneath the dura, compressing the left cerebral hemisphere.
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As altitude increases, what happens to air pressure?
A. It fluctuates.
B. It increases.
C. It decreases.
D. It stays the same.
Answer:
Air pressure drops
Explanation:
linkedin is considered the most effective platform for b2b lead generation. linkedin is considered the most effective platform for b2b lead generation. false
The given statement "linkedin is considered the most effective platform for b2b lead generation." is True.
In order to interact with potential customers and offer their products and services, B2B marketers use LinkedIn. It works well together because of the following unexpected facts:
43% of marketers report having found a customer on LinkedIn, and 94% of B2B marketers use LinkedIn to share their content. According to HubSpot, 50% of LinkedIn members say they are more inclined to make a purchase from a business they interact with on LinkedIn.In addition to these arguments, there are several market studies that offer logical justifications for why LinkedIn is the best platform for B2B sales marketers. According to the Content Marketing Institute, 63% of B2B marketers admit that their sales have increased as a result of using this social network.Learn more about the Linkedin with the help of the given link:
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im doing anatomy and physiology, how is a human cardiac considered a smooth muscle and not cardiac muscle..
Cardiomyocytes are found in the walls of the heart appear striated striped and are involuntarily controlled. Smooth muscle fibers are found in the walls of hollow internal organs, except the heart which appears spindle-shaped, and are also involuntarily controlled.
Cardiomyocytes have a central nucleus like smooth muscle but they also have striations, like skeletal muscle. types of muscle tissue. Both skeletal and cardiac muscles appear striated or striped because their cells are arranged in bundles.
Smooth muscle lacks striations because the cells are arranged in sheets rather than bundles. Smooth muscle cells are spindle-shaped with a single central nucleus and no muscle. They are called involuntary muscles. Cardiac muscle has branched fibers, one nucleus per cell, strips, and intercalated discs. Its contractions are not subject to voluntary control.
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in fermentation reactions occurring in yeast to produce wine, two products of the reaction are __________ and _________.
In fermentation reactions occurring in yeast to produce wine, two products of the reaction are ethanol and carbon dioxide.
In the field of science, fermentation can be described as a process by which complex sugar molecules are broken down into simpler ones.
Aerobic fermentation is the type of fermentation that occurs in the presence of oxygen whereas anaerobic fermentation occurs in the absence of oxygen.
In the production of wine, yeast transforms sugars in the juice into ethanol and carbon dioxide. Carbon dioxide is released as a by-product of this reaction.
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The pelvic girdle consists of two?
The pelvic girdle comprises two coxal bones. The ilium, ischium, and pubis combine to produce each coxal bone. At the point where these bones fuse, the thigh-bone articulates with a region called the acetabulum.
What is the role coxal bone in the pelvic girdle?The two coxal bones (also known as the pelvic or innominate or hip bones) make up the pelvic girdle. These connect to one other in front of the pubic symphysis and to the sacrum in back at the sacroiliac joint.
The left and right coxal bones are together b to as the pelvic girdle. These are commonly referred to as "hip bones."
The pelvis is the bowl-shaped structure formed by the two coxal bones, linked in the anterior by the sacrum and coccyx. The pelvic girdle is made up only of the two coxal bones.
Therefore, The pelvic girdle consists of two coxal bone.
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Which of the following can be classified as a van der Waals force?
Dipole-dipole interaction can be classified as a van der Waals force.
What is van der Waals force?Electrostatic, induction, and dispersion are the types of van der Waals forces. The most important interaction is the dipole-dipole, dipole-induced dipole, and London dispersion contributions because they are always significant. types of Van der Waals forces electrostatic interaction between the charges in ionic molecules. Interaction between dipoles in polar molecules. Quadrupole interactions in the atoms or molecules whose symmetry is less than cubic. Interactions between permanent multipoles of van der Waals forces include hydrogen bonding, dispersion forces, and dipole-dipole interactions. They are weaker than normal covalent bonds and ionic bonds. Examples of van der Waals forces are hydrogen bonding, dispersion forces, and dipole-dipole interactions.
So we can conclude that electrostatic, induction, and dispersion are the types of van der Waals force.
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Which of the following can be classified as a van der Waals force?
A. Dipole-dipole interaction.
B. the hydrophobic effect
C. ion-dipole interaction
D. none of the above
Standard NCES.7.L.2.1- Which statement compares the chromosome number of cells produced in mitosis to the chromosome number of cells produced in meiosis?
Group of answer choices
Both meiosis and mitosis produce cells with the same number of chromosomes as the original cell.
Both meiosis and mitosis produce cells with half the number of chromosomes as the original cell.
Mitosis produces cells with the same number of chromosomes as the original cell, while meiosis produces cells with half the number of chromosomes as the original cell.
Mitosis produces cells with half the number of chromosomes as the original cell, while meiosis produces cells with the same number of chromosomes as the original cell.
Answer:
Mitosis produces cells with the same number of chromosomes as the original cell, while meiosis produces cells with half the number of chromosomes as the original cell.
In mitosis the number of chromosomes is exactly the same as the parent cells, while in meiosis number of chromosomes is reduced to half, hence option C is correct.
What is the difference between meiosis and mitosis?Mitosis is the equational division of the cell to produce daughter cells having the same number of chromosomes, but meiosis is the reductional division that produces daughter cells having half the number of chromosomes as compared to the parent cell.
Meiosis is the process to produce a haploid number of cells and is generally used in the production of gamete. Mitosis is used for increasing the number of cells in the body.
Both processes occur in several stages during the body formation of the organism.
Therefore, option C is correct.
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The instructions in ______ encode the information that a cell needs to produce proteins, which are vital to living things.
Answer:
It is a DNA. I hope this is helpful
Which part of the cell theory most directly supports the claim that a single-celled organism can carry out all metabolic functions of life?.
"All cells come from pre-existing" is part of the cell theory most directly supports the claim that a single-celled organism can carry out all metabolic functions of life.
Which three major cell theories are there?
The following three ideas make up the cell theory: Cells are the basic building block of every living thing. The fundamental pillar of structure and hierarchy in all living things is the cell. From pre-existing cells, new cells are formed.
Modern cell theory
hypothesis that cells proliferate and pass on genetic information; that energy flows within cells; and that cells are the fundamental structural, functional, and organizational elements of both single-celled and multicellular animals.
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List & describe two types of mutations that can occur in a nucleic acid molecule.
A mutation is the change in the sequence of genetic material (DNA or RNA). Mutations in the DNA sequence are of three types including base substitutions, deletions, and insertions.
What are mutations?
A mutation is a change in the sequence of DNA of an organism. Mutations can result from the errors in the process of DNA replication during cell division by the exposure to mutagens or a viral infection.
There are three types of DNA Mutations which include base substitutions, deletions, and insertions. Base substitutions include change in the sequence of a particular amino acid due to change at a single nucleotide base. Deletions include the removal or absence of a nucleotide base from the sequence of DNA molecule which results into frame shift of the DNA strand in the organism.
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In a cell undergoing meiosis, if homologous chromosomes are aligned at the equator of the meiotic spindle, what process has occurred?.
In a cell undergoing meiosis, if homologous chromosomes are aligned at the equator of the meiotic spindle, the process of metaphase has occurred.
What is meiosis?Meiosis is the process of cell division in which the number of chromosomes present in the cells is divided into two.
Meiosis is the process by which the body produces the sex cells; the eggs and the sperm. These cells are called haploid cells because they have half the number of chromosomes in the somatic or body cells.
During meiosis, the cells undergo two rounds of cell divisions consisting of four stages each which are:
prophase,metaphase,anaphase, andtelophaseThe first round separates homologous chromosomes.
During the first round of division, in metaphase 1, the homologous chromosomes are arranged at the equators of the spindle fibers of meiosis.
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when water dissolves minerals in rock producing new compounds is called
When water dissolves minerals in rock producing new compounds is called chemical weathering.
Minerals are the chemical substances formed inside the rocks due to several depositions and mixtures. The area where these minerals are found on the earth is known as their ore. Ore contains the impure form of the minerals as it may be mixed with certain impurities as well as other minerals.
Chemical weathering is the result of chemical reaction between rain water and the rocks. This particular process resulting due to water is termed as hydrolysis. Their are also other forms of chemical weathering like carbonation, oxidation, acidification, etc.
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This is the chemical formula for…
A. Cellular Respiration
B. Photosynthesis
Answer:
B
Explanation:
This is photosynthesis, and without it, there likely would be no plants or animals.
Which molecule is responsible for a human child having the same eye color as his or her mother?.
A particular region on chromosome 15 plays a major role in eye color.
The amount of melanin found in the outer layers of the iris is closely correlated with eye color. The iris of people with brown eyes contains a lot of melanin, whereas the iris of people with blue eyes contains far less of this pigment.
What gene determines the color of the eyes?
Finally, HERC2 and OCA2 are the two main genes in charge of determining eye color. OCA2 was thought to be the main determinant of eye color during the initial research to categories genes for eye color.
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You collect a protist from a rotting log and grow it in a petri dish containing E. coli, which it engulfs. For a while the protists multiply as single cells. Then the E. coli run short, and the protists aggregate to form a clump, which rises up to become a stalked structure with a globular head. What kind of protist have you got?
Saprobes, which are fungus-like protists, are specialized in absorbing nutrients from non-living organic substances, such as dead creatures or their excrement. Many oomycetes, for example, grow on dead animals or algae.
Saprobic protists play an important role in restoring inorganic nutrients to the soil and water. Protists, bacteria, viruses, fungus, plants, and mammals are all examples of parasites. Parasites are thought to account for 40% of all animal species. Some parasites reside on their hosts (ectoparasites), while others live within them (endoparasites) (endoparasites). Parasitic protists create sickness that is both fatal and morbid. Plasmodium, Leishmania, Trypanosoma, and Toxoplasma are among the protists. Malaria, sleeping sickness, and Chagas disease are among the ailments they cause.
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Please help?
Question
The Moorish idol fish lives in coral reefs around the world. Its oceanic environment is saltier than the environment inside its cells.
1. Which process contributes to the Moorish idol fish losing water to its surroundings
A. ion channels
B. facilitated diffusion
C. active transport
D. osmosis
2. The concentration of water is greater outside the cell than inside the cell.
What will happen according to the process of osmosis?
A. Water will move out of the cell, causing it to shrivel.
B. Water will surround the cell, keeping it moist.
C. Water will be repelled away from the cell, keeping it dry.
D. Water will move into the cell, causing it to swell.
3. Amoebas are single celled organisms that take in particles, and sometimes smaller organisms, as food by enclosing the food particle in its membrane. The amoeba requires energy for this process.
Which structure in an amoeba produces the energy it needs?
A. nucleolus
B. vacuole
C. mitochondria
D. vesicle
4.
Read the paragraph.
Despite its name, the Pacific sea horse is actually a type of fish. Its horse-shaped head gives it its name. This creature lives in the Pacific waters off the west coast of the Americas, from Peru to Southern California. Like many other ocean fish, sea horses face the constant challenge of losing water to their saltier environment. When a sea horse sees a predator, its nervous system kicks into high gear.
Which structure is responsible for transmitting signals from one nerve cell to the next
A. Golgi body
B. nucleus
C. cell membrane
D. ribosome
1. The process that contributes to the Moorish idol fish losing water to its surroundings is B. facilitated diffusion
2. The thing that will happen according to the process of osmosis is A. Water will move out of the cell, causing it to shrivel.
3. The structure in an amoeba produces the energy it needs is B. vacuole.
4. The structure that is structure is responsible for transmitting signals from one nerve cell to the next is C. cell membrane.
How to illustrate the information?Amoebas are single-celled organisms that eat particles and occasionally smaller organisms by enveloping the food particle in their membrane.
Facilitated diffusion is a type of diffusion in which molecules travel from a high concentration zone to a low concentration region with the help of a carrier.
The process of spontaneous passive movement of molecules or ions across a biological membrane via certain transmembrane integral proteins is known as facilitated diffusion.
The cell membrane, also known as the plasma membrane, is found in all cells and serves to separate the cell's interior from the outside environment. The cell membrane is made up of a semipermeable lipid bilayer. The cell membrane controls the passage of materials into and out of the cell.
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what is an action of the highlighted muscle? group of answer choices arm extension at shoulder arm flexion at shoulder arm abduction at shoulder forearm extension at elbow
The action of the highlighted muscle is the flexion of vertebral column.
A long, thin muscle that entirely affects the shoulder joint is the coracobrachialis. Its primary purposes are to pull the arm toward the body's midline and to bring the arm forward. The coracoid process, a little portion of the scapula, is where the muscle begins to develop. It enters the humerus, a long bone in the upper arm, in the middle of the interior.
As they are connected to the body's bones, the skeletal muscles are in charge of the movement and stability of the body. Inside a mammal's body are smooth muscles that support the healthy operation of the internal organs.
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EASY EXPLANATION MY TEACHER WILL KNOW IT'S NOT ME WRITING
Barnacles and mussels are filter feeders that attach themselves to rocks in the ocean. They eat by filtering small particles of food from the ocean water as it flows over them. A scientist observed a dense colony of barnacles covering the surface of a rock. The mussels were only able to attach to a few, small crevices on the same rock.
Evaluate this observation and explain a limiting factor that is affecting the barnacles and mussels on the ocean rock.
Answer:The barnacles are only able to attach themselves to surfaces in the water. Since the surface is limited, barnacles are attaching themselves to the other barnacles, crowding the rock. The muscles were not able to grow or attach themselves off the surface of the rock. Same thing with the mussels that are growing on the rock. So not only barnacles are crowding the rock, but Mussels as well are crowding the rock.
Explanation:
The movement of materials across the cell membrane from an
area of higher concentration to an area of lower concentration
is called
Answer:
Diffusion!
Explanation:
ur welcome x
Answer:
Diffusion
Explanation:
movement of materials across the cell membrane
Explain the morphological type of virus?
The virion's size and form, the number of capsomers, the symmetry of the capsid, and whether an envelope is present are all aspects of a virus' morphology.
According to their shapes, viruses can be divided into four categories: filamentous, isometric (or icosahedral), enveloped, and head and tail.
Viruses that are filamentous are long and cylindrical. TMV is one of many filamentous plant viruses (tobacco mosaic virus). Poliovirus and herpesvirus are examples of isometric viruses with nearly spherical geometries. Viruses with an envelope have membranes covering their capsids.
The capsid, which is a virus's exterior protein coat. Capsomeres are the protein subunits that the capsid is made up of. The T4 bacteriophage, which infects the Escherichia coli bacterium, is one of the most complex virions known. It features a head shape that contains its DNA and a tail structure that the virus utilizes to attach to host cells.
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Which of these situations produced the landform in this picture?
A. Thin lava flowing slowly over time,
B. explosive eruptions alternating with lava flow,
C. Thick ash mixing with water to form unstable layers,
D. An explosive eruption occurring only once.
The option from the situation that produced the landform in this picture is: "Explosive Eruptions alternating with lava flow" (Option B). The landform in the diagram is called a volcanic mountain.
How is a volcanic mountain formed?When molten rock from deep under the Earth erupts through the crust and piled up on itself, volcanic mountains arise. The Hawaiian islands were produced by submarine volcanoes, and the islands visible today are the remnant volcanic tops.
A volcano is a crack in the crust of a planet, such as Earth, that permits hot lava, volcanic ash, and gases to escape from a magma chamber under the surface. Volcanoes are most commonly located where tectonic plates are diverging or converging on Earth, and the majority are found underwater.
A volcano has the following characteristics:
Volcanoes are generated by lava and ash explosions.Volcanoes are typically formed as cones of mountains or hills.When magma reaches the earth's surface, it is called lava. Volcanic eruptions can occur on destructive and constructive boundaries, but not on conservative boundaries or collision zones.Learn more about volcanic mountains:
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Prokaryotes are ____?
A. Fungi
B. Complex cells
C. Bacteria
D. Large in size
Monera is a biological kingdom that is made up of prokaryotes. As such, it is composed of single-celled organisms Monera is a biological kingdom that is made up of prokaryotes. As such, it is composed of single-celled organisms that lack a nucleus. The taxon Monera was first proposed as a phylum by Ernst Haeckel in 1866. Subsequently, the phylum was elevated to the rank of kingdom in 1925 by Édouard Chatton.
A prokaryote is a single-celled organism that lacks a nucleus and other membrane-bound organelles. The word prokaryote comes from the Greek πρό and κάρυον. In the two-empire system arising from the work of Édouard Chatton, prokaryotes were classified within the empire Prokaryota.
HELP !!!!
This plant with variegated leaves does not grow as fast as another plant with
only green leaves.
Suggest a reason for this.
Answer (with explanation):
A plant with variegated leaves indicate that there is a lower amount of chlorophyll within it's leaves. A plant with all green leaves indicate a high amount of chlorophyll. Plants need chlorophyll in chloroplasts to do photosynthesis. A low amount of chlorophyll makes it harder for the plant to perform photosynthesis. Thus, a plant with variegated leaves may not grow as well as one with all green leaves.
in double-stranded dna, the sugar-phosphate backbones are: group of answer choices on the inside, separated by grooves of equal size. on the inside, separated by grooves of unequal size. on the outside, separated by grooves of equal size. on the outside, separated by grooves of unequal size.
In double-stranded DNA, the sugar-phosphate backbones are on the outside, separated by grooves of unequal size.
The double-helical structure of was discovered through the work of James Watson, Francis Crick, Rosalind Franklin. Nucleotide subunits made up DNA's structure. Deoxyribose, a phosphate group, and one of the four nitrogenous bases—adenine (A), thymine (T), guanine (G), or cytosine—make up a nucleotide (C).
The two DNA strands curve around one another to form a right-handed helix in Watson and Crick's model. Every helice has a handedness property, which describes the orientation of the grooves in space. A larger gap, known as the major groove, and a smaller gap, known as the minor groove, run along the length of the molecule, due to the twisting of the DNA double helix and the geometry of the bases. These grooves serve as crucial protein binding sites for maintaining DNA and controlling gene activity.
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A high-pitched crowing sound from the upper airway results from tracheal or laryngeal spasm and is called what?.
A high-pitched sound called stridor is connected to laryngeal blockage. There are several congenital causes of laryngomalacia, including laryngeal web, unilateral or bilateral vocal cord palsy, subglottic stenosis, subglottic hemangioma, and tracheomalacia.
What is a strideor ?When your youngster breathes in, you are most likely to hear strudor, a high-pitched sound (also known as "inspiration"). Your child's upper airway is frequently the source of the obstruction or constriction.
When they breathe in or out, children who have asthma or other respiratory conditions may wheeze or make stridor, a high-pitched, turbulent sound that is less melodic than a wheeze. Typically, stridor is a sign of an obstruction or restriction of the upper airway outside of the chest cavity.Learn more about Stridor here:
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Models are useful to scientists, but they can have drawbacks. For example, models can oversimplify a process or show only parts of the structures involved in the process. List two pros and two cons of the model you created in part A
A pros and disadvantages list is a straightforward yet effective method for making decisions that may be used to comprehend both sides of an argument.
What pros and cons of the model in scientific experiments?The word “pros” refers to justifications for taking a specific course of action. Cons are reasons to disagree with it.
Models portray strange things with familiar objects. Models can assist you in mentally imagining something that is challenging to see or comprehend.
Therefore, There are discrepancies between the model and reality as a result of the assumptions that are made during modeling.
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Here's one possible answer (WORD FOR WORD ON PLATO)
●Pros.
•Simple images make the process easy to understand.
•The model accurately shows that protein synthesis has distinct stages.
●Cons.
•The model doesn't accurately show nucleotides in DNA and RNA.
•The model doesn't differentiate between the locations of processes. It fails to show which processes processes occur in the nucleus and which occur in the ribosome.
A gas at a fixed volume has an initial volume of 132 L and a tempera- ture of 24.80 K. The temperature is decreased to 10.01 K. What is the new volume?
The new volume is 53.28 L.
Temperature is a physical amount that expresses the hotness of a count number or radiation. There are 3 kinds of temperature scales:, which includes the SI scale. Temperature is the diploma of the hotness or coldness of an item.
An ideal gas is a theoretical fuel composed of many randomly moving point debris that isn't concerned with interparticle interactions. the suitable fuel concept is beneficial as it obeys the ideal fuel law, a simplified equation of nation, and is amenable to evaluation below statistical mechanics.
using the ideal gas equation.
PV = nRT
V₁/V₂ = T₁/T₂
V₂ = V₁T₂/T₁
= 132 L × 10.01 K / 24.80 K
= 53.28 L
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Arrange the tiles to show the sequence of the steps in a scientific investigation.
make an observation
ask questions
construct a hypothesis
test the hypothesis
analyze the results
and make conclusions
communicate the results
↓
↓
↓
↓
↓
Correct sequence is make an observation ask questions construct a hypothesis test the hypothesis analyze the results and make conclusions communicate the results.
The scientific method is the process of objectively establishing facts through testing and experimentation. The basic process involves making an observation, forming a hypothesis, making a prediction, conducting an experiment and finally analyzing the results.
7 steps of the scientific method include Make an observation, Ask a question, Form a hypothesis, or testable explanation, Make a prediction based on the hypothesis, Test the prediction, Use the results to make new hypotheses or predictions.
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