3 things that you learned about Particle Theory and Wave Theory of Light
Answers
2.when I wave at the light it does not wanna wave back
3 Theories are smart guesses
Related Questions
Wastewater contains naturally occurring microorganisms that biodegrade a wide range of pollutants, but some pollutants are resistant to treatment. A Maryland wastewater treatment plant has found high levels of resistant toxic dye in its incoming wastewater. Their researchers would like to add a detoxifying bacterium, Sphingomonas xenophaga, to degrade the dye. This anaerobic bacterium is found in terrestrial soil samples and will be grown in a lab setting before being released into the wastewater stream. Based on the information provided, what type of bioremediation is being considered? Provide at least 2 pros and 2 cons of using this bioremediation method. As the local microbiologist, propose at least one alternative bioremediation method.
Answers
The type of bioremediation being considered here is Biostimulation.
Biostimulation is a type of bioremediation that promotes the natural biodegradation of pollutants by introducing nutrients to microorganisms present in the environment. This enhances the microbial population, resulting in increased rates of contaminant breakdown.
2 pros of biostimulation are:
Cost-effective- Biostimulation is a cost-effective method of bioremediation, as it does not require large quantities of specialized equipment or materials to implement.
Non-invasive- Biostimulation is a non-invasive method of bioremediation, as it does not require the removal of contaminants or soil from the site.
2 cons of biostimulation are:
Unpredictable- Biostimulation can be unpredictable as it relies on the activity of natural microorganisms, which can be influenced by environmental conditions such as temperature and pH.
Excessive nutrient addition- Excessive nutrient addition may lead to eutrophication, which can harm aquatic ecosystems.
Proposed alternative bioremediation method: Phytoremediation is a promising alternative to biostimulation for the treatment of wastewater contaminated with dyes. This is a sustainable and eco-friendly way of treating wastewater and it does not require the addition of chemicals or microorganisms.
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Match the given behaviors of water with their correct rationale. Use your observations about water and the reading you have done to draw conclusions about these behaviors. Drag the items on the left to the correct location on the right. Correct high specific heat Correct ice floats on water Correct cohesion Correct high heat of vaporization Hydrogen bonds between water molecules keep the molecules "sticking together." Heat energy first breaks hydrogen bonds before it increases movement of water molecules. As a result more heat is required to raise the temperature of water. A large amount of energy is needed to convert liquid water, where the molecules are tied by hydrogen bonds, to water vapor, where they are not. As water freezes, the hydrogen bonds form a crystalline lattice which keeps the molecules at a consistent distance leading to a density lesser than liquid water.
Answers
Answer:
Heat energy first breaks hydrogen bonds before it increases movement of water molecules - High specific heat
As water freezes, the hydrogen bonds form a crystalline lattice which keeps the molecules at a consistent distance leading to a density lesser than liquid water- Ice floats on water
A large amount of energy is needed to convert liquid water, where the molecules are tied by hydrogen bonds, to water vapor, where they are not - High heat of vaporization
Hydrogen bonds between water molecules keep the molecules "sticking together." - Cohesion
Explanation:
Water is a molecule composed of two atoms of hydrogen and one atom of oxygen. Water is a very unique substance with properties that are unexpected of a molecule its size. Some of the unique properties of water include:
Its high polar nature, High-specific heat, High heat of vaporization, the lower density of ice. One of the reason for these unique properties is strong cohesive forces between water molecules.
Cohesion: Hydrogen bonds between water molecules keep the molecules "sticking together."
Polarity: Water molecules are polar, with partial positive charges on the hydrogens, a partial negative charge on the oxygen because oxygen is more electronegative than hydrogen. As a result, water is a good polar solvent.
High specific heat: Heat energy first breaks hydrogen bonds before it increases movement of water molecules.
Lower density of ice: As water freezes, the hydrogen bonds form a crystalline lattice which keeps the molecules at a consistent distance leading to a density lesser than liquid water, therefore, ice floats on water
High heat of vaporization: A large amount of energy is needed to convert liquid water, where the molecules are tied by hydrogen bonds, to water vapor, where they are not.
I am a real "powerhouse"
That's plain to see
I break down food
And release energy
What am I ?
Answers
Before a kidney is transplanted, It is important to match the tissue type of the donor with the tissues type of the recipient. State why this is necessary
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Summarize: In your own words, describe what heredity is and how it works in mice.
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Answer:
Heridity is genitically passing on mental and physical traits.
Heridity on mice is the same as it in is humans but you study the coat or flur of them.
Explanation:
5. Mutations in DNA occur when there is a change in the base-pair sequence of a
gene. Which of these is not an accurate statement about mutations?
A.Most mutations occur when a cell copies its DNA for cell division.
B.Mutations can involve adding, removing, or substituting genes.
C.Mutations always cause a change in the in the way an organism looks.
D. Mutations can be beneficial . Which of these is not an accurate statement about mutations?
Answers
Answer:
C. Mutations always cause a change in the in the way an organism looks.
Explanation:
Digestive enzymes and hormones are found to be similar in many mammals. These findings are examples of -
Anyone!!help me please and thanks :)ASAP
Answers
Answer:
hhhkhgujbggujjggyukhgyujjhyikhgyujhgyujggujvgujhgguhhgjnhhjjhjnbbh
Which two environmental changes would be likely to make an ecosystem less stable?
A. A keystone species is removed from the area.
B. An invasive species of plant is introduced to the area.
C. A predator population increases one year and then decreases the next year.
D. A beaver dam temporarily reroutes a river.
Answers
B. An invasive species of plant is introduced to the area: An invasive species can outcompete native species, disrupt food webs, and alter the physical environment of the ecosystem, leading to instability.
D. A beaver dam temporarily reroutes a river: Changing the flow of a river can alter the physical characteristics of an ecosystem, including water availability and sediment deposition, which can have cascading effects on the ecosystem's structure and function.
While the removal of a keystone species and fluctuations in predator populations can also affect the stability of an ecosystem, they are not necessarily always destabilizing. The removal of a keystone species could lead to a trophic cascade, but this could also have a stabilizing effect on the ecosystem. Similarly, fluctuations in predator populations can have both stabilizing and destabilizing effects, depending on their timing and magnitude.
What are the components of blood?
The components of human blood are:
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The components of human blood are the blood cells and plasma. The blood cells are of types such as RBCs, WBCs, and platelets. The plasma consists of the clotting factor and other proteins.
What is blood?The human blood has a fluid part called plasma and a cellular part. Red blood cells (RBC), white blood cells (WBC), and platelets make up the cellular portion of the blood.
The plasma component of the blood consists of clotting factors such as fibrinogen and other proteins like albumin. RBC carries the oxygen that is bound to haemoglobin. WBC protects the body from pathogens.
Hence, the components are plasma, RBC, WBC, and platelets.
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what is photo synthesis
Answers
Answer:
photosynthesis is the process where plants use the sun's energy and carbon dioxide to produce food(gluscose)
photosynthesis is the process where plants(producers)get energy from the sun to grow their food
An atom has 5 protons, 7 neutrons, and 5 electrons.
What is it's atomic mass?
Answers
Answer:
12
Explanation:
add protons to nuetrons
Explanation:
Tue atomic mass of an atom is the sum of the number of protons and neutrons.
Therefore;
For this particular atom, the atomic mass 12 (7+5)
Please Help! In what areas of New Zealand might you expect to find compression? Explain your answer.
Btw I don't want any links for the answers!
Answers
Answer:
The Pacific Plate is colliding with the Australian Plate at a rate of about 40 mm/yr. The East coast of the North Island is being compressed and lifted by this collision, producing the North Island and Marlborough Fault Systems.
Explanation:
What do experimental results indicate if a bacterial colony grows on Eosin Methyl Blue media and appears as a dark, metallic colony? The bacteria are Gram negative and can ferment lactose The bacteria are Gram negative and cannot ferment lactose The bacteria are Gram positive and cannot ferment lactose The bacteria are Gram positive and can ferment lactose
Answers
If a bacterial colony grows on Eosin Methyl Blue (EMB) media and appears as a dark, metallic colony, the experimental results indicate that the bacteria are Gram-negative and can ferment lactose. Option A is correct.
EMB media is a selective and differential agar commonly used to isolate and differentiate Gram-negative bacteria based on their ability to ferment lactose. The dyes in the EMB media inhibit the growth of Gram-positive bacteria, allowing only Gram-negative bacteria to grow.
The dark, metallic colony color on EMB media suggests that the bacteria are capable of fermenting lactose. Fermentation of lactose produces acid, and the dyes in the media react with the acid, resulting in a color change of the colony. The dark, metallic color indicates a strong acid production, typically associated with vigorous lactose fermentation.
Hence, A. is the correct option.
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--The given question is incomplete, the complete question is
"What do experimental results indicate if a bacterial colony grows on Eosin Methyl Blue media and appears as a dark, metallic colony? A) The bacteria are Gram negative and can ferment lactose B) The bacteria are Gram negative and cannot ferment lactose C) The bacteria are Gram positive and cannot ferment lactose D) The bacteria are Gram positive and can ferment lactose."--
- Which of these supplies the energy used in respiration and the energy stored
in photosynthesis?
a - glucose
b- carbon dioxide
c- oxygen
d- water
Answers
Answer:
glucose
Explanation:
energy is stored in glucose and transferred into ATP for cellular respiration
a - glucose
(C6 H12 O6)
......
a population of peas has 750 purple flowered plants and 250 white flowered plants. what percentage of the population is homozygous recessive? (enter a number between 0-100)
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A homozygous recessive condition affects 25% of the population.
How do you define heterozygous recessive?Being heterozygous, as opposed to being homozygous, means having two distinct alleles. Each of your parents gave you a different version. The dominant allele triumphs over the recessive one in a heterozygous genotype. The dominating trait will therefore manifest itself. Even though the recessive characteristic won't manifest, you are still a carrier.
What makes homozygous recessive different from heterozygous?Each gene in each of us has two alleles, or variations. If you inherit two identical copies of a gene, you are said to be homozygous for that gene. In contrast, a genotype with distinct alleles is called a heterozygous genotype. People with recessive characteristics, such as red hair or blue eyes, are always homozygous for that gene.
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Buyer enters into a short sale agreement with seller with an option to terminate 14 days after the effective date using the TREC Short Sale Addendum. The effective date is February 5. The seller has until February 19 to notify buyer that seller has obtained lienholder's consent and agreement. The seller notifies the buyer that the lienholder has consented to the sale on February 19, but then withdraws its consent based on new information on February 27. What is the status of the contract?
Answers
The lien holder has consented to the sale on February 19, but then withdraws its consent based on new information on February 27 so status of the contract is It is terminated.
A lienholder, otherwise called a lienor, is characterized as the party that holds a lien on your vehicle until your credit is settled completely. The lienholder for a vehicle advance is much of the time a monetary firm, for example, a bank or credit association, however confidential gatherings can likewise go about as a lienholder. Until the loan on your vehicle is paid in full, a lienholder may require you to carry certain auto insurance policies, such as collision and comprehensive coverage.
When you finance a car, a lien is created. In many states that implies the moneylender holds the vehicle's title and is viewed as the vehicle's lawful proprietor until the advance is settled completely. The lien safeguards the loan specialist and permits them to repossess the vehicle in the event that the borrower quits making installments. When you finance a car, you typically pay the lienholder monthly.
You pay a monthly fee to drive the vehicle when you lease it, but you do not own it when the lease is up. A lease does not involve a lienholder. The party liable for your rent is called your lessor. You will have the option of buying the vehicle at the end of the lease, returning it, or signing up for a new lease.
A lienholder has the right to demand specific auto insurance policies, such as comprehensive and collision coverage. These particular inclusions guarantee the lienor is secured assuming that the vehicle is harmed or taken. In some instances, the lienor may even be listed on the insurance policy, determining your liability coverage, deductible, and deductible amount.
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Looking at the weather map, predict what weather would be happening in Nashville over the next couple of days
Question 3 options:
A)Warm air moving from the south will cause several days of warm weather
B)Clear cold weather for several days
C)Rainy weather first, followed by clear skies
D)Rain and snow for several days
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Given what we know, we can confirm that over the next couple of days, the weather map is indicating that a cold front will approach Nashville, what this means is that Nashville will experience clear cold weather for several days.
What is a cold front?A cold front is just as the name implies. It is a mass of air that forms in front of warmer air and is colder. The map in question shows a cold front passing Nashville. Since there is no warm front or jet stream passing nearby, we can expect clear but cold days.Therefore, given that a cold front is a mass of air that forms in front of warmer air and is colder, we can confirm that because the map shows only a cold front passing over Nashville, it will experience clear cold weather for several days.
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Answer: C
Explanation: Nashville is it closer to the cold front line, so that means you’ll have rainy weather first and since the jet stream is going down it’s clear weather after that.
What is the topic being discussed?
Answers
Answer: stuff about the cells
Explanation: thats what i talk about
Which best matches objects that a scientist would include on a list describing a forest ecosystem?
different types of animals and plants and the forest soil
O one animal species, the soil, water, and nutrients
o hall the living things in the forest ecosystem
O different types of soil, rocks, and water sources in the forest
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Answer:
all the living things in the forest ecosystem
Evolution can only be observed Group of answer choices a. in individuals b. over many generations c. within a species d. a
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Evolution can be observed over many generations and within a species (options b and c). The correct answer is option e.
Evolution is a gradual process that occurs over long periods of time, involving changes in inherited traits within a population. While it may not be directly observable within an individual's lifespan, evidence of evolution can be observed by studying populations over many generations.
Observing changes in traits and genetic frequencies within a population over time provides insights into evolutionary processes. This can be seen through the study of fossil records, comparative anatomy, embryology, and molecular genetics, among other methods.
Additionally, evolution can be observed within a species. This refers to the changes that occur in the genetic makeup of a population, leading to the emergence of new traits or variations in existing traits within that species.
Therefore, the correct answer is option e: Evolution can be observed over many generations (b) and within a species (c). By studying populations and their genetic changes over time, scientists can gather evidence and observe the process of evolution.
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Complete question:
Question 27 1 pts Evolution can only be observed
a. in individuals
b. over many generations
c. within a species
d. a & b
e. b&c
these rnas are called noncoding rnas. read carefully to discern a crucial role played by these ncrnas. what is this role
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The transcriptional and post-transcriptional levels of gene expression are both regulated by non-coding RNAs (ncRNAs). There is proof that some non-coding RNAs (ncRNAs) participate in epigenetic processes.
The term "non-coding RNA" refers to which RNA?Abstract. Although RNA that does not encode a protein is often referred to as a non-coding RNA (ncRNA), this does not imply that such RNAs lack information or function.
Which three main categories of non-coding RNA exist?The three main categories of short non-coding RNAs (small ncRNAs) are microRNAs (miRNA), small interfering RNAs (siRNAs), and piwi-interacting RNAs (piRNAs).
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Draw a diagram of your circulatory model. Use the terms Left Side of the Heart, Right Side of the Heart, Lungs, and Body. Reference the lab Introduction to label your drawing. Use arrows to label your drawing to show the direction of water flow.
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Diagram: Lungs --> Right Side of the Heart --> Body --> Left Side of the Heart --> Lungs. It is composed of the heart, blood vessels, and blood. The heart is divided into two sides
The circulatory system is responsible for transporting oxygen and nutrients throughout the body. It is composed of the heart, blood vessels, and blood. The heart is divided into two sides, the right side and the left side. The right side of the heart receives oxygen-poor blood from the body and pumps it to the lungs, where it picks up oxygen and releases carbon dioxide. The oxygen-rich blood then flows back to the left side of the heart, which pumps it to the rest of the body. This cycle is continuous and ensures that all organs and tissues receive the necessary oxygen and nutrients to function properly.
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Do viruses consume energy in order to live.
Answers
Answer:
Viruses are too small and simple to collect or use their energy – they just steal it from the cells they infect. Viruses only need energy when they make copies of themselves, and they don't need any energy at all when they are outside of a cell.
Explanation:
Answer:
yes and no
Explanation:
Viruses only need energy when they make copies of themselves, and they don't need any energy at all when they are outside of a cell.
Write any three adaptional features of plants that grow in cold regions
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Answer:
1. Cushion plants - these are compact, low growing plants. These characteristics help them to survive in cold and windy conditions. They trap airborne dust and use it as a source of nutrients.
2. Arctic poppy - this has a hairy stem to retain heat. The flower can track the sun in the sky to maximize the amount of sunlight it receives so that it can increase photosynthesis.
3. Cotton grass - this grass has small seeds that can easily be dispersed by the wind to ensure its survival. It is low lying to protect it from cold winds and has thin leaves to reduce water loss by transpiration. Cotton grass grows and produces seeds quickly as soon as the temperature increases.
4. Lichen - this organism does not need soil to grow. It grows very slowly, can withstand very cold temperatures and survives beneath snow.
Explanation:
Hope it helps.. if yes, plz mark me as brainliest
Cytosine make up 38% of the nucleotides in a sample of DNA from an organism. Approximately what percentage of the nucleotides in this sample will be Uracil?
Answers
Answer:
The percentage of thymine in a sample of the DNA will be 12%.
Structure of DNA:
The DNA, according to Chargaff, is made up of nucleotide subunits. These nucleotides are hydrogen-bonded to one another to form the double stranded molecule of DNA.
The nucleotides found in the DNA molecule are as follows:
Adenine
Thymine
Cytosine
Guanine
Adenine (A) pairs with Thymine (T) while Guanine (G) pairs with Cytosine (C).
Based on Chargaff's rule, the amount of adenine is equal to that of thymine in a DNA molecule. The same applies to Guanine and Cytosine. However, the total amount of nucleotides equals 1 or 100%.
A + T + G + C = 100%.
If cytosine makes up 38% of the DNA sample, this means that guanine will also be 38%.
G (38) + C (38) = 76%
100% - 78% = 24%
This means that Adenine and Thymine amounts to 24%. The amount of each nucleotide will be 24% ÷ 2 = 12% i.e. A = T = 12%
Therefore, the percentage of thymine in a sample of the DNA will be 12%.
Explanation:
true or false a primary reagent used for standardization should be >99.9% pure.
Answers
The statement "A primary reagent used for standardization should be >99.9% pure" is true because it is needed to ensure accurate and reliable results during the standardization process.
A primary reagent used for standardization should typically be of high purity, generally greater than 99.9%. This high level of purity ensures that the reagent does not introduce impurities or contaminants that could affect the accuracy and reliability of the standardization process.
When preparing standard solutions or calibrating analytical instruments, it is crucial to use high-quality reagents to minimize measurement errors and maintain the integrity of the analysis. Hence, the statement is generally true.
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how does one produce long-term potentiation of cells in the mammalian nervous system?
Answers
The process of inducing LTP involves a complex interplay between electrical and biochemical signals that lead to the strengthening of synaptic connections in the mammalian nervous system.
Long-term potentiation (LTP) is a process by which synaptic connections between neurons in the mammalian nervous system can be strengthened and sustained over time. This process involves a series of biochemical and electrical changes that lead to an increase in the responsiveness of the post-synaptic neuron to the neurotransmitter released by the pre-synaptic neuron.
One way to induce LTP is through repetitive stimulation of a specific pathway of neurons. This can be achieved by applying high-frequency electrical stimulation to the neurons, which causes an increase in the concentration of calcium ions in the post-synaptic neuron.
Calcium ions act as a signaling molecule that triggers a series of biochemical reactions within the neuron that ultimately lead to an increase in the number and efficiency of neurotransmitter receptors on the post-synaptic membrane.
Another way to induce LTP is through the activation of NMDA receptors on the post-synaptic membrane. NMDA receptors are a subtype of glutamate receptor that are activated by the neurotransmitter glutamate. When activated, NMDA receptors allow calcium ions to enter the post-synaptic neuron, triggering the same series of biochemical reactions that occur during high-frequency stimulation.
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how to figure out bond order from ground state electron configuration
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Bond order is the number of chemical bonds between a pair of atoms. It is obtained by taking the difference between the numbers of electrons in the antibonding and bonding molecular orbitals and then dividing that value by 2.
How to figure out bond order from ground state electron configuration?The bond order can be determined using the following formula;Bond order = 1/2 (Nb − Na)Where;Nb = the number of electrons in antibonding orbitalsNa = the number of electrons in bonding orbitals
For example;Suppose the ground state electron configuration of O2 is represented as follows:O2: (σ1s)² (σ*1s)² (σ2s)² (σ*2s)² (π2px)² (π2py)² (π*2px)¹ (π*2py)¹The number of electrons in antibonding orbitals Nb is 2 and the number of electrons in bonding orbitals Na is 10. Therefore,Bond order = 1/2 (Nb − Na) = 1/2 (2 − 10) = 1/2 (-8) = -4Thus, the bond order of O2 is -4 which implies that it has a weakly bonded structure, and it is unlikely to exist as a molecule.
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Which statement best describes the flow of matter among the organisms in an ecosystem?
A. Matter is destroyed as it is transferred from one trophic level to the next.
B. Matter is either transferred from one trophic level to the next or destroyed as waste.
OC. Matter is stored in a trophic level, transferred to another trophic level, or released as waste.
O D. All of the matter from one trophic level is transferred to the next trophic level.
Answers
Answer:
C. Matter is stored in a trophic level, transferred to another trophic level, or released as waste
Explanation:
Matter is stored in a trophic level, transferred to another trophic level, or released as waste. A trophic level is a level of an ecosystem that consists of organisms that share the same function in the food chain and the same nutritional relationship to the primary sources of energy. For example, producers, such as plants and algae, are the first trophic level; primary consumers, such as herbivores, are the second trophic level; secondary consumers, such as carnivores, are the third trophic level; and so on. Matter is anything that has mass and takes up space, such as atoms and molecules. Matter cycles through an ecosystem in various forms, such as carbon, nitrogen, oxygen, and water. Matter is not created or destroyed in an ecosystem, but it can change forms and locations. Matter can be stored in the bodies of organisms or in abiotic components of the ecosystem, such as soil, water, or air. Matter can be transferred from one trophic level to another when one organism consumes another organism or when one organism decomposes another organism. Matter can also be released as waste when organisms excrete or respire. Therefore, matter is constantly moving and transforming in an ecosystem, but it is conserved in terms of mass and energy.
If you can continuously eat without feeling full, what hormone
might a human be in deficit of?
1. Glucose
2. Neuropeptide Y
3. Testosterone
4. Glucagon
5. PYY
6. Leptin
Answers
If a human can continuously eat without feeling full, they might be in deficit of the hormone leptin, option 6 is correct.
Leptin is primarily produced by fat cells and acts as a satiety hormone, signaling to the brain that the body has sufficient energy stores. It helps regulate appetite and energy balance by suppressing hunger and increasing energy expenditure. When leptin levels are low or the body becomes resistant to its effects, the brain doesn't receive the signal that the body is satiated, leading to excessive food intake and a lack of feeling full.
While the other hormones listed, such as glucose, neuropeptide Y, testosterone, glucagon, and PYY, may play a role in appetite regulation and energy balance, leptin is specifically associated with signaling fullness and satiety. Its deficiency or resistance can disrupt the normal feedback loop between the body and the brain, resulting in continuous eating without feeling satisfied, option 6 is correct.
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