To compare overall survival (OS) and disease-free survival (DFS) between patrol lymph node biopsy (SNB) and elective neck dissection (END) in the surgical control of cT1-2N0 oral cavity squamous cell carcinoma (OCSCC).
What is the distinction between sentinel nodes and axillary nodes?
Axillary lymph nodes are current in the underarm or the axilla. Sentinel lymph nodes are the lymph nodes into which breast cancer is more likely to apply first. Therefore, sentinel node biopsy is used to check the axillary lymph nodes for the spreading of breast cancer.
What occurs after sentinel lymph node reduction?
After a sentinel node biopsy, numerous people have no side effects. Some people have pain or injuring at the cut (incision) and feel tired. Your breast and underarm area may be barely swollen.
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Can you get too much/too little of these molecules in your diet? WHY?
Minerals should be taken in little amount in your diet while on the other hand, macromolecules like protein, fats and carbohydrate are also taken in suitable range in order to get healthy.
Can you get too much/too little of these molecules in your diet?You can't get too much or too little of macromolecules in your diet because too much consumption of fats or proteins can leads to weight gain while on the other hand, substances which are needed by our body in small amount such as sodium and other minerals must be taken in small quantity in your diet in order to maintain our health.
So we can conclude that Minerals should be taken in little amount in your diet while on the other hand, macromolecules like protein, fats and carbohydrate are also taken in suitable range in order to get healthy.
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In plant cells, what
structures contain
DNA?
A. nucleus,
and central vacuole
mitochondria,
B. nucleus, mitochondria,
and chloroplasts
C. nucleus, mitochondria,
and rough ER
D. nucleus, mitochondria,
and smooth ER
Answer:
The answer towards your question would be B.
B. nucleus, mitochondria and chloroplasts.
Explanation:
To explain it, the reason is because Nucleus is the one which contains DNA and only mitochondria and chloroplasts are the other ones which also contain DNA as their genetic material. Although, all living organisms do use deoxyribonucleic acid (DNA) including plants. The DNA in plant cells is found only in the nucleus, the mitochondria and the chloroplasts.Cells that are related to eukaryotes but similar in structure to bacteria are called ______.
Cells that are related to eukaryotes but similar in structure to bacteria are called archaea.
The overall cellular structure of archaea and microorganisms are equal but the composition and agency of a few structures range in archaea. much like micro organisms, archaea no longer have interior membranes but each have a cell wall and use flagella to swim.
Each bacteria and archaea have cell membranes and that they each comprise a hydrophobic issue. within the case of bacteria, it's far a fatty acid, inside the case of archaea, it is a hydrocarbon phytanyl. each micro organism and archaea have a mobile wall that protects them.
However this visible similarity to micro organism, archaea's very own genes and numerous metabolic pathways which are greater closely associated with the ones of eukaryotes, considerably the enzymes involved in transcription and translation. Archaea display off form of chemical reactions of their metabolism and use many belongings of power.
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If a body is decomposed enough that normal recognition isn't possible, what macromolecule might a forensic scientist test for to confirm that remains are human and try to get a match to a missing person?
Lipids
Proteins
Nucleic acids
Carbohydrates
The macromolecule that the forensic scientist can test for to confirm that remains are human and try to get a match to a missing person is nucleic acids..That is option C.
Who is a forensic scientist?A forensic scientist is a trained individual to analyze crime scenes to determine what evidence should be collected following a criminal case or murder case.
The areas that a forensic scientist make use of during an investigation to identify a human remains include the following:
fingerprints, dental records and DNA.The DNA is most important even in cases where the body has decomposed beyond recognition
Deoxyribonucleic acid (DNA) is a genetic molecule that carries a specific information concerning an individual.
The Deoxyribonucleic acid (DNA) is an example of nucleic acids, therefore, the macromolecule that the forensic scientist can test for to confirm that remains are human and try to get a match to a missing person is nucleic acids.
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Based on these data alone, state a hypothesis for which of these two species is more closely related to humans. What is your reasoning?
A small frog lives in a pond covered with a species of aquatic plant that attracts insects
due to its color. The small frogs depend on the insects for food. This represents a
relationship between the frog and the plant species.
O predation
mutualistic
O competitive
commensalism
A species of aquatic plant that is covered in a pond and draws insects because of its color is home to a frog population. Small frogs rely on insects for food. The frog and the plant species are preying on each other in this situation.
What is predation?Examples of predation the taking of a prey by a predator, who then consumes it. Hunting is a kind.
In a predation, one organism, the predator, consumes all or a portion of the body of another, the prey. An example of herbivory is when a plant serves as the prey organism. The dynamics of prey and predator populations are influenced by one another.
Describe an aquatic plant:A plant that grows in water, whether it is rooted in the mud (like a lotus) or floating without anchorage (like the water lily, floating heart, or lattice plant) (such as the water hyacinth)
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The part of a neuron that transmits information over long distances is the ______.
According to the research, the correct option is Axon. The part of a neuron that transmits information over long distances is the axon.
What is the axon?It is a nerve structure with an elongated and thin shape that comes out of the body of the neuron, in order to transmit the nerve impulse.
In this sense, this thin continuation of a neuron, often covered with a myelin sheath, aims to achieve neuronal synapsis and extends to the beginning of another neuron with which it will establish the synapse.
Therefore, we can conclude that according to the research, the correct option is Axon. The part of a neuron that transmits information over long distances is the axon.
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1. If a typical smelt weighs 225 g, what is the total mass of PCBs in a smelt in the Great Lakes? If an average lake trout weighs 4,500 g, what is the total mass of PCBs in a trout in the Great Lakes? Assume that a lake trout from an unpolluted source is introduced into the Great Lakes and smelt are the only source of PCBs in the trout's diet. The new trout would have the same level of PCBs as the existing trout after eating how many smelt? (Assume that the trout retains 100% of the PCBs it consumes.)
1. A typical smelt weighs 225 g. The total mass of PCBs in a smelt in the Great Lakes is 2.34 × 10^-4 g.
2. If an average lake trout weighs 4,500 g, the total mass of PCBs in a trout in the Great Lakes is 2.17 × 10^-2 g.
3. The new trout would have the same level of PCBs as the existing trout after eating 93 smelts.
Polychlorinated biphenyls are fantastically carcinogenic chemicals, previously used in business and client products, whose manufacturing was banned within the USA with the aid of the poisonous materials management Act.
PCBs are organic chemicals referred to as chlorinated hydrocarbons. PCBs have been domestic synthetic man-made until production became banned. they have got more than a few toxic and range in consistency from thin, light-colored liquids to yellow or black waxy solids.
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Bacteria are grouped as either gram‑positive or gram‑negative. Which features are found in gram‑positive bacteria, and which are found in gram‑negative bacteria?.
The features found in gram-positive and gram-negative bacteria are as follows: The cell wall of gram-positive bacteria is composed of thick layers peptidoglycan while the cell wall of gram-negative bacteria is composed of thin layers of peptidoglycan.
What are gram-positive and negative bacteria?A gram-positive bacteria is a bacteria that stains dark blue or violet after gram staining, due to large quantities of peptidoglycan in the cell wall.
On the other hand, gram-negative bacteria is a bacteria that retains the gram stain due to the low amount of peptidoglycan in the cell wall.
Therefore, the major structural difference between gram-positive and gram-negative bacteria is as follows: the cell wall of gram-positive bacteria is composed of thick layers peptidoglycan while the cell wall of gram-negative bacteria is composed of thin layers of peptidoglycan.
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Where is exponential growth by a plant population more likely-in an area where a forest was destroyed by fire or in a mature, undisturbed forest? Why?
Exponential growth is more likely in areas where a forest has been burned out. The first plants to find adequate habitat there would find plenty of space, nutrients, and sunshine. Plants would compete fiercely for these resources in an undisturbed forest.
Exponential growth :Exponential growth is the process by which quantity rises over time. It occurs when a quantity's instantaneous rate of change with regard to time is proportionate to the quantity itself.
What causes exponential growth in a population ?Population growth exhibits exponential growth when resources are unrestricted, resulting in a J-shaped curve. When resources are scarce, populations expand logistically. As resources become scarce, population increase slows in logistic growth.
Can environments support exponential growth ?Exponential growth can occur in environments with few people and many resources, but as the population grows, resources become depleted, reducing the pace of increase. The rate of growth will eventually plateau or level out.
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Describe one safe activity that you see?
Answer:
6th person
Explanation:
he isn't touching anything with his hands and not facing any risky thing
let me know if this was helpful
Suppose that the number of bird species is determined mainly by the number of vertical strata found in the environment. If so, in which of the following biomes would you find the greatest number of bird species? a. tropical rain forest b. savanna c. desert d. temperate broadleaf forest
The number of bird species is determined mainly by the number of vertical strata found in the environment. If so, then tropical rain forest biomes would find the greatest number of bird species.
What is the tropical rainforests?Tropical rainforests are the one which have world's most biologically diverse terrestrial ecosystems. The Amazon rainforest is the largest tropical rainforest on the planet. It is home to around 40,000 plant species, nearly 1,300 bird species, 3,000 different types of fish, 427 different animal species, and 2.5 million different insects.
These forest types constitute a patchwork of vegetation kinds that contribute to the tropics' amazing variety. The Amazon Basin in South America is home to the majority of the world's tropical rainforest. The Congo Basin and Southeast Asia have the second and third greatest regions of tropical rainforest, respectively.
Facts about the tropical rainforest :Rainforests are classified into various categories. Rainforests cover less than 3% of the earth's land surface. The Amazon rainforest is the world's largest. Rainforests have more plant and animal species than any other terrestrial habitat. The trees are home to a large portion of the rainforest's life.To know more about Rainforests visit :
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Which of the mrna processing events occurs in the nucleus of human cells? select all that apply. poly-a tail addition 5' cap addition splicing of exons excision of introns
The mRNA processing events that occurs in the nucleus of human cells are as follows:
5′-end cappingsplicing3′-end polyadenylationWhat is mRNA processing?mRNA is synthesized from a gene as a result of transcription. This mRNA is called pre-mRNA.
However, this pre-mRNA must undergo processing to get rid of unnecessary things before translation into useful products.
The states of mRNA processing are as follows:
5′-end cappingsplicing3′-end polyadenylationThese three stages of mRNA processing occurs in the nucleus before the matured mRNA exits for translation.
Therefore, the mRNA processing events that occurs in the nucleus of human cells are as follows:
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How can studying individuals with damage to a particular brain region provide insight into the normal function of that region?
Damage to the brain that disrupts behaviors, cognition, memory, or other functions indicates that the portion of the brain affected by the damage is important for the normal activity that is blocked or altered.
What is neuroscience?The scientific study of the nervous system and its functions is known as neuroscience. It is a multidisciplinary science that incorporates physiology, anatomy, molecular biology, developmental biology, cytology, and many other disciplines.
A neuroscientist is interested in how the brain works. They study the brain and then use scientific experiments to try to answer questions.
Brain damage that interferes with behavior patterns, cognition, recollection, or other functions demonstrates that the area of the brain affected by the damage is critical for the everyday activities that is obstructed or altered.
Thus, it can be concluded that studying individuals with damage to a particular brain region provide insight into the normal function of that region.
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The image represents a human cell in an isotonic solution. Some common cellular molecules that can freely move across the plasma membrane are shown5
What do you think will happen if no energy is used?
a
Some CO2 will leave the cell.
b
Some H2O will enter the cell.
c
Some H2O will leave the cell.
d
Some O2 will enter the cell.
In the cell in the isotonic solution it will happen that some O2 will enter the cell.
Why will O2 enter the cell?This is going to happen because we are going to find a higher concentration of O2 outside the cell, so the cell, having a lower concentration, is going to enter the cell by concentration gradient, thus equalizing the concentrations inside and outside the cell. Regarding ATP and CO2 nothing will happen since their concentrations will be equal and then they are in equilibrium.
Therefore, we can confirm that in the cell in the isotonic solution it will happen that some O2 will enter the cell.
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Bacteria as a group are incredibly metabolically diverse, but individual species are often highly specialized to reduce competition in their natural environment. This results in these species being unculturable because.
There is a huge diversity in Bacterial organisms. We are very ignorant of the bacterial life present on earth. But many of these bacteria are unculturable in the Natural Environment. This is because the conditions provided by the environment might not be favorable for their survival or because of the competition between other microbes. It is also estimated that less than 2% of bacteria can be cultured in Laboratory.
The bacterias can be unculturable due to several reasons. Some of them are: The culture may not allow bacteria to get the essential nutrients, the Medium can be toxic, or other bacteria produce substances that make it inhabitable for the target organism. We know that bacterias depend on each other for their growth and complete nutritional requirement which can make it unculturable for other bacteria to grow.
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what role(s) do the pancreatic islets play in the negative feedback control of blood glucose levels?
Sensor, integrating center, and effector roles do the pancreatic islets play in the negative feedback control of blood glucose levels.
Pancreatic Islets- Our pancreas contains clusters of cells known as pancreatic islets, commonly referred to as islets of Langerhans. The pancreas is the organ that produces hormones to aid in the digestion and use of food by the body. The beta cells that produce the hormone insulin are among the several cell types found in islets.
Insulin- A hormone produced by the pancreatic islet cells. By delivering sugar to a cells, where it may be utilized by the body to provide energy, insulin regulates the quantity of glucose in the blood.
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What is true about altruistic behavior? group of answer choices it is evident in every animal species. it can be completely explained in terms of gene
It is difficult to explain from an evolutionary/genetic point of view is true about altruistic behavior.
It is difficult to explain altruistic behavior from an evolutionary/genetic point of view. Altruistic behavior does not seem to benefit the individual who performs it, so it is hard to see how it could have been selected for by the process of natural selection. One possible explanation is that altruistic behavior may have been favored by selection because it benefited the group as a whole, rather than the individual. Groups of animals that exhibited altruistic behavior may have been more successful in competition with other groups, and so over time, altruism became more common. Another possibility is that altruistic behavior is a by-product of other qualities that were favored by selection, such as intelligence or social skills.
Whatever the reason, altruism remains an important part of many animal societies, and it is hard to explain from an evolutionary standpoint.
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adduction movement at the wrist in the frontal plane of the little finger side of the hand toward the medial forearm is called .
adduction movement at the wrist in the frontal plane of the little finger side of the hand toward the medial forearm is called ulnar flexion
kinesiology is the study of the principles of anatomy, physiology, and mechanics in relation to human movementAn instrument used to measure the change in joint angles is goniometerStructural kinesiology is the study of muscles, bones, and joints as they are involved in the science of movement.Anatomical position is the Reference position that is used as a basis from which to describe joint movements. This is the most widely used and is accurate for all aspects of the body.Fundamental Position is the Essentially the same as the anatomical position, except that the arms are at the sides with the palms facing the body.To know more about kinesiology visit : https://brainly.com/question/10326251
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_____, a human resource issue, is a possible cause of cost overruns in an organization.
Inadequate training is a human resource issue that is a possible cause of cost which will be overruns in an organization.
What is Inadequate training?Any training that does not satisfy the needs of the business in terms of both quantity and quality is referred to as inadequate training.This means that while determining your ideal training requirements, quality and quantity cannot be ignored.The opportunity cost of Inadequate training includes:There never seems to be enough time for everyone to do their work. Employee engagement is decreased when employees are sent on training that is ineffective, and the company pays for the time the employees could have spent working instead.
Workers with more training produce work of greater quality. As a result, consumer acquisition and retention rates grow. The company is losing a lot of money in lost income because it isn't maximizing its employees' talents through frequent and effective training.
The most successful businesses find a way to promote from the inside. This maintains a strong business culture and offers internal career options. You can develop the company's future top managers by giving them management training.
Hence, inadequate training, a human resource issue, is a possible cause of cost overruns in an organization.
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znf92, an unexplored transcription factor with remarkably distinct breast cancer over-expression associated with prognosis and cell-of-origin
ET-9 is a cell-of-origin linked prognostic gene expression profile that is significantly associated with significantly lower overall and relapse free breast cancer survival, 8.7 and 6.2 years, respectively.
What is cell?The smallest component of all living things, including cells and tissues in the body, that is capable of independent living. The cell membrane, nucleus, and cytoplasm make up a cell's three basic structural components. The nucleus is a component of the cell that houses the nucleolus and the majority of the DNA. Most RNA is produced there as well. The fluid found inside a cell is called cytoplasm. The Golgi complex, the mitochondria, and the endoplasmic reticulum are among the additional minute cell components that are found there.
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please help please answer
Answer:
It was cooler in the summer than in the winter
Explanation:
Chart shows 4 degrees warmer in December compared to July.
The site of greatest energy production in a muscle cell is the ________.
The site of greatest energy production in a muscle cell is the mitochondria.
Mitochondria are referred to as the powerhouse of a cell because the process of cellular respiration occurs in the mitochondria. It is through the process of cellular respiration, that food is broken down so that energy can be made for a cell to carry out its activities.
In a muscle cell as well, the site where the greatest energy is produced is the mitochondria. In the mitochondria, glucose and oxygen react to form carbon dioxide and water and ATP is released during this reaction. This ATP is the driving force for the muscle cells and all other cells of the body.
Although a part of your question is missing, you might be referring to this question:
The site of greatest energy production in a muscle cell is the ________.
nucleus
ribosomes
mitochondria
cytoplasm
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What pattern do you see as you compare elements that belong in groups 1A to 8A on the Periodic Table?
Since all of the elements are metals in group IA have one valence electron in their outermost shell, they all react violently, and as you move down the group, the reactivity gets progressively worse. Because Group VIIIA has a complete valence shell, they are non-reactive
The group 1 elements Li, Na, K, Rb, Cs, and Fr are alkali metals. When sliced, the alkali metals are all supple, metallic, and lustrous. They are good electrical conductors, have low melting temperatures and densities, and react readily with water. Each of them has a valence electron that they can readily lose to produce ions
Group 8 elements (or VIIIA) of the periodic table are the noble gases or inert gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn)
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jones jb, lacy gh, bouzar h, stall re, schaad nw, 2006. list of new names and new combinations previously effectively, but not validly, published. international journal of systematic and evolutionary microbiology 56, 925–7
The purpose of this information is to effect the valid publication of the following actually published new names and new combinations under the procedure defined in the Bacteriological Code (1990 Revision).
What stands Bacteriological Code ?
The International Code of Nomenclature of Prokaryotes (ICNP) formerly the International Code of Nomenclature of Bacteria (ICNB) or Bacteriological Code (BC) governs the scientific terms for Bacteria and Archaea. It denotes the rules for calling taxa of bacteria, according to their close rank.
What is bacteriological study?
Bacteriology is the analysis of bacteria and their relation to medicine. Bacteriology developed from physicians needing to apply the germ theory to test the problems connecting to the spoilage of foods and wines in the 19th century.
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Describe one safe activity that you see
Answer
6th person
Explaining
he isn't touching anything with his hands and not facing any risky think
What structure in plant cells stores salts, sugars, and pigments, contains enzymes that recycle and degrade molecules, and expands to exert turgor pressure?
Central vacuole structure in plant cells stores salts, sugars, and pigments, contains enzymes that recycle and degrade molecules, and expands to exert turgor pressure.
What is the central vacuole in a partition?A cellular organelle found in plant cells is called the central vacuole. The largest organelle in the cell is frequently this one. It serves as a container for waste and textiles and is covered by a membrane. Additionally, it serves to keep the right force within plant cells, which gives the growing plant support and structure.
What is the central vacuole and what is its position?
The central vacuole serves a variety of functions in plant cells, including storing salts, minerals, nutrients, proteins, and pigments, promoting plant development, and providing the plant with vital structural support.
In plant cells, the central vacuole structure stores salts, carbohydrates, and pigments. It also includes enzymes that break down and recycle molecules and expands to provide turgor pressure.
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A manufacturing company dumps its wastes into a nearby pond. One of the wastes is found to paralyze the contractile vacuoles of certain protists. A biologist looking at individual samples of these organisms taken from the pond would find that they.
These organisms taken from the pond would find that they have gained water and burst.
A scientist who studies biology is known as a biologist. Whether it be a single cell, a multicellular creature, or a group of interdependent populations, life on Earth is of interest to biologists. They often have a particular research emphasis and specialize in a certain area of biology, such as molecular biology, zoology, or evolutionary biology (e.g., studying malaria or cancer). The goal of fundamental research conducted by biologists is to increase our understanding of the natural world. They use the scientific method, an empirical approach to evaluating theories, to conduct their study. Their findings could be valuable for a particular objective, like biotechnology, which aims to create human-useful medicinal items.
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What is the type of metabolism that occurs when energy is created with a balance of adequate oxygen and nutrients?
The type of metabolism that occurs when energy is created with a balance of adequate oxygen and nutrients is aerobic.
In the field of science, aerobic metabolism, also referred to as aerobic respiration can be described as a process by which energy is made by using oxygen and nutrients from food. As a result of aerobic respiration, 36 molecules of ATP are produced.
These ATP's are the driving force that is required by each cell to carry out its functions. Hence, the correct option is aerobic metabolism.
Other options, such as anaerobic are not correct because anaerobic respiration occurs in the absence of oxygen. In humans, the body usually shifts to anaerobic respiration when an excess amount of oxygen cannot reach the cells. This usually happens at the time of heavy exercise.
Although a part of your question is missing, you might be referring to this question:
What is the type of metabolism that occurs when energy is created with a balance of adequate oxygen and nutrients?
A. Aerobic
B. Hypoxic
C.Homeostatic
D. Anaerobic
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Nitrifying bacteria participate in the nitrogen cycle mainly by a. converting nitrogen gas to ammonia. b. releasing ammonium from organic compounds, thus returning it to the soil. c. converting ammonium to nitrate, which plants absorb. d. incorporating nitrogen into amino acids and organic compounds.
Nitrifying bacteria participate in the nitrogen cycle mainly by converting ammonium to nitrate, which plants absorb. So, the correct option is (c).
Chemolithotrophic organisms known as nitrifying bacteria include species from the genera Nitrosomonas, Nitrosococcus, Nitrobacter, Nitrospina, Nitrospira, and Nitrococcus. The oxidation of inorganic nitrogen molecules provides the energy needed by these bacteria. Ammonia, the most reduced form of soil nitrogen, is transformed into nitrate by nitrifying bacteria.
By itself, this plays a crucial role in maintaining the balance of soil nitrogen losses due to leaching and nitrate denitrification. Filter media is a great sowing medium. The simplest approach to apply this technique is to add an additional filter to an existing tank for a few weeks so that nitrifying bacteria can develop on the filter media. Sponge filters are perfect for this because they are portable, affordable, and compact.
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