The numbers of organisms, at each trophies level, in a natural habitat remain more or less constant from year to year. Explain why this is so.
Answers
Predation: Both predator and prey species have balanced numbers, preventing any from becoming overly large and endangering the other.
Environmental factors: Variations in the environment, such as changes in temperature, precipitation, or sunlight, can have an impact on a species ability to survive and reproduce. The populations of creatures adapt and remain largely steady under a stable environment.
The overall number of species is largely maintained constant by this equilibrium. Competition can prevent a population from growing too large by limiting access to resources like food, water, and shelter.
Some species move to various environments in search of resources or to escape unpleasant circumstances. The movement of living things can support the balance of populations in various ecosystems.
Natural catastrophes: Natural catastrophes, like fires, floods, or earthquakes, can significantly affect populations of creatures. However, populations typically rebound and reach their baseline levels over time.
In conclusion, migration, competition for resources, environmental stability, predator-prey balance, and recovery from natural disasters all contribute to the stability of the population of species in a natural habitat from year to year.
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Related Questions
what is heat?write with its example
Answers
Answer: I look it up bc ihnc ...Heat is the form of energy that is transferred between systems or objects with different temperatures (flowing from the high-temperature system to the low-temperature system). Also referred to as heat energy or thermal energy. Heat is typically measured in Btu, calories or joules..
Explanation:
Answer:
i took a screenshot of the answer :)
advancements in our understanding of ____ and how DNA functions contribute to our understanding that populations change over time.options:A. geologyB. quantum physicsC. molecular biology D. chemistry
Answers
Question: advancements in our understanding of ____ and how DNA functions contribute to our understanding that populations change over time.
options:
A. geology
B. quantum physics
C. molecular biology
D. chemistry
Explanation:
Molecular biology has supported and expanded our understanding of evolutionary relationships and thus of population change over time. This is because molecular biology explains the phenomena of life from its macromolecular properties and two macromolecules, in particular, are its object of study: nucleic acids, among which is the molecule of heredity or DNA.
Answer:
molecular biology
If we bring cheesy pizza into the classroom and placed it at the door, is that the high or
low concentration?
a. After about 10 minutes, would the molecules fill up the room?
b. If so, is that the molecules moving from high to low concentration or low to
high? Explain your choice
Answers
Answer:
a. yes
b. high concentration.
Explanation:
Yes, molecule move from high concentration to low concentration by the process of diffusion.
What is diffusion?
Diffusion is a process or movement of molecules where they move from high concentration to low concentration. It is a passive movement. Molecules move downhill from their concentration gradient.
Since, for transfer of this molecules no energy is required it is called passive transport. In plants diffusion is a important process for transfer of gases.
In animals, it plays a important role for transfer of gases such as oxygen and carbon dioxide. If we bring cheesy pizza into the classroom then the aroma of the molecules move down the concentration gradient.
Therefore, Yes, molecule move from high concentration to low concentration by the process of diffusion.
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9. Applying a drug that increases cGMP levels in photoreceptors would cause which effect on a photoreceptor's response to a photon of light?
a. An intensified depolarization from normal
b. An attenuated depolarization from normal
c. An intensified hyperpolarization from normal
d. An attenuated hyperpolarization from normal
e. There would be no effect
Answers
The correct answer is c. An intensified hyperpolarization from normal.
Explanation:
cGMP (cyclic guanosine monophosphate) is a molecule that plays an important role in the phototransduction process in photoreceptors. When a photon of light hits a photoreceptor, it activates a cascade of reactions that ultimately leads to the closing of cGMP-gated ion channels and the hyperpolarization of the photoreceptor cell.
If a drug were to increase cGMP levels in photoreceptors, it would cause more cGMP-gated ion channels to be open, leading to an intensified hyperpolarization of the photoreceptor cell. This would cause the photoreceptor to have an exaggerated response to a photon of light, resulting in an intensified hyperpolarization from normal.
Therefore, the correct answer is c. An intensified hyperpolarization from normal.
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based on the data, was Zack, who ate the tofu, guilty of leaving a mess in the classroom?
Answers
Answer:
no.
Explanation:
The mystery food sample did not test positive for protein using the Biuret indicator, so the sample can not be tofu, which is what Zack ate.
9.
Which is an environmental factor that affects skin color in humans?
O number of genes inherited
O amount of sunlight absorbed
O number of linked genes
O amount of food consumed
Answers
Which is an environmental factor that affects skin color in humans?
O number of genes inherited
O amount of sunlight absorbed
O number of linked genes
O amount of food consumed
ANSWER:-AMOUNT OF SUNLIGHT ABSORBED.
Number of gene for color of the skin is same in all the human beings and also it's a genetic factors is there will be any absence of gene due to its deletion AMOUNT OF SUNLIGHT it is variable in variable reasons which is a imp factor for the color in variation in earth. In regions near to the equator have high amount of the light so they have darker skin color then the people near the poles as there is less amount of light .Number of gene inherited is also same for each and every individual for single species for human which is 378 gene loci and if there is any variation in number due to any genetics disorder it would be a genetic factor again.amount of food consumed is different for different people with same color in same region as it only depends on the work which is done by the individual in the society for its existence. though it is a environmental factor bit it didn't effect color of the species.SO ACCORDING TO ABOVE DETAILS WE CAN CONCLUDE (2) AMOUNT OF THE SUNLIGHT IS THE ENVIRONMENTAL FACTOR WHICH IS RESPONSIBLE FOR THE COLOR OF THE SKIN IN HUMANS
A study was conducted to determine if smoking cigars is associated with tongue cancer. Of the 500 individuals with tongue cancer, 450 were cigar smokers; of the 1,000 without tongue cancer, 450 were cigar smokers.
a) Create a 2x2 table
b) How many people smoked cigars and did not have tongue cancer?
c) How many people did not smoke cigars and did not have tongue cancer?
d) Calculate the odds ratio
E) Interpret the odds ratio
Answers
a) The 2x2 table for the study:
Tongue Cancer No Tongue Cancer
Cigar Smokers 450 450
Non-Smokers 50 550
b) Number of people who smoked cigars and did not have tongue cancer: 450.
c) Number of people who did not smoke cigars and did not have tongue cancer: 550.
d) The odds ratio is 11.
e) Interpretation: Cigar smokers are 11 times more likely to develop tongue cancer compared to non-smokers.
a) The 2x2 table for the study is as follows:
Tongue Cancer No Tongue Cancer
Cigar Smokers 450 450
Non-Smokers 50 550
b) The number of people who smoked cigars and did not have tongue cancer is 450.
c) The number of people who did not smoke cigars and did not have tongue cancer is 550.
d) To calculate the odds ratio, we use the formula: (ad)/(bc), where a is the number of cigar smokers with tongue cancer, b is the number of non-smokers with tongue cancer, c is the number of cigar smokers without tongue cancer, and d is the number of non-smokers without tongue cancer. In this case, the odds ratio is:
(450 * 550) / (50 * 450) = 550 / 50 = 11
e) The odds ratio of 11 indicates that individuals who smoke cigars are 11 times more likely to develop tongue cancer compared to those who do not smoke cigars. This suggests a strong association between cigar smoking and tongue cancer. It is important to note that the odds ratio only indicates the strength of association and does not establish causation. Other factors, such as lifestyle, genetics, and other smoking habits, may also contribute to the development of tongue cancer. Further research and analysis would be required to determine the causal relationship between cigar smoking and tongue cancer.
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Which of the following factors affecting population growth is density
independent?
A. Competition
B. Disease
C. Natural disaster
D. Predation
Answers
C. Natural disaster is a density-independent factor affecting population growth. Density-independent factors are those that affect the population irrespective of the population size or density.
How Natural disasters reduce population sizes?Natural disasters such as floods, hurricanes, earthquakes, and wildfires can reduce population sizes regardless of how many individuals were present in the population before the disaster occurred. The other factors listed - competition, disease, and predation - are all density-dependent factors, which means that they become more significant as the population size or density increases.
Competition is an example of a density-dependent factor, as it increases as the population size increases. As more individuals compete for limited resources such as food, water, and shelter, the rate of population growth slows down.
Disease is another density-dependent factor, as it spreads more easily in crowded populations where individuals are in close contact with one another.
On the other hand, natural disasters such as floods, hurricanes, and wildfires are examples of density-independent factors. These events can affect a population regardless of its size, and they can cause significant decreases in population size.
Predation can be both a density-dependent and density-independent factor. In some cases, predation can increase as the population size increases, making it a density-dependent factor. However, predators can also reduce the population size through random hunting or selective hunting of weaker individuals, making it a density-independent factor.
Understanding the factors that affect population growth is important for predicting and managing population sizes in both natural and human-made ecosystems.
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Chris lives in a city that experiences heavy rainfall with average annual precipitation of 882 millimeters. It is warm all year.
Mark lives in city with an average annual rainfall of 40 millimeters. It has hot summers and cool winters.
Chris’s city is in a
A. Moderate
B. Dry
C. Tropical
climate, while Mark’s city is in a
A. Tropical
B. Dry
C. Polar
climate.
Answers
The climate in Chris’s city is tropical and the climate in Mark’s city is dry climate. The correct options are C and B.
What is precipitation?Precipitation is the amount of moisture or water present in the air. During the rainy seasons, precipitation is high and during summer the precipitation is low, and it causes air lighter and warm.
The climate in Chris' city is humid tropical.
The tropical wet climate type, is somewhere near the equator, as regions near the equator typically experience high precipitation and warm, humid climates.
The weather in Mark's city is chilly desert.
The city where Mark lives will have a cold desert climate because of the large temperature variations, hot summers and cold winters, and very little precipitation.
Therefore, the correct option is C. Tropical and B. Dry.
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Chris’s city is in a tropical climate, specifically a tropical rainforest climate.
Mark’s city is in a dry climate.
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i noticed that the wood structures around the damp areas of my house are damaged, the other day i saw winged insects emerging from the wood. what insects could these be? why do you think so? group of answer choices termites cockroaches honey bees carpenter ants
Answers
The most likely insects that damaged the wood structures are carpenter ants (option D).
What are wood damaging insects?Wood-damaging insects are insects that damage wood by tunneling through it to live, nest, or feed.
Examples of wood-damaging insects with the potential to invade properties are carpenter ants, carpenter, termites, bees, and wood-boring beetles.
Carpenter ants are damaging insects like to nest in water-damaged or decaying pieces of wood. This fits the description of the winged insects that damaged the damp wood in this question.
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#5 Which statement is true in regards to DNA mutations? *
Mutations can lead to positive adaptations in an organism
all mutations result in a change in protein formed
mutations are not present in unicellular organisms
all mutations are negative and lead to diseases
Answers
Answer:
Mutations can lead to positive adaptations in an organism
cascadable neuron-like spiking dynamics in coupled vcsels subject to orthogonally polarized optical pulse injection
Answers
Cascadable neuron-like spiking dynamics in coupled VCSELs (Vertical-Cavity Surface-Emitting Lasers) subject to orthogonally polarized optical pulse injection refers to the behavior of multiple VCSELs that are interconnected and influenced by injected optical pulses with different polarizations.
Here is an explanation of the terms used in the question:
Cascadable: This term refers to the ability to connect multiple VCSELs in a cascaded manner, where the output of one VCSEL is connected to the input of another VCSEL, creating a chain-like structure.
Neuron-like: In this context, the term "neuron-like" suggests that the behavior of the coupled VCSELs resembles the firing patterns of neurons in the brain. VCSELs can exhibit spiking behavior similar to the firing of action potentials in neurons.
Coupled VCSELs: VCSELs that are connected or coupled together. The coupling can be achieved through physical or optical means, allowing for interaction and synchronization between the VCSELs.
In summary, cascadable neuron-like spiking dynamics in coupled VCSELs subject to orthogonally polarized optical pulse injection involves the interconnected behavior of multiple VCSELs, which exhibit spiking patterns similar to neurons when subjected to injected optical pulses with different polarizations.
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Comparative research into non-exercise activity thermogenesis (NEAT) concluded that _____. A. lean individuals who are overfed spend the same amount of time engaging in NEAT activities daily B. obese individuals do not engage in NEAT activities C. obese individuals spend more time sitting than lean individuals D. lean individuals gain as much weight as obese individuals when overfed
Answers
Answer:
C. obese individuals spend more time sitting than lean individuals
Explanation:
Comparative research into non-exercise activity thermogenesis (NEAT) concluded that obese individuals spend more time sitting than lean individuals.
Replacement of dead tissue cells with connective tissue cells is a process called?
Answers
Regeneration is a sort of healing when new growth entirely transforms injured tissue sections back to their pre-damage state.
What is regeneration of connective tissue cells?After being destroyed, cells and tissues can be repaired via connective tissue or by parenchymal regeneration and replaced with healthy cells. Granulation tissue development is the first step in connective tissue repair.
Regeneration is a natural process that occurs in both plants and animals to replace or bring back to full function cells, tissues, organs, and even complete body parts.
The most sensible and efficient treatment for both the primary degenerative effects (secondary ligament damage) and their underlying cause (ligament damage).
Therefore, regeneration is a process in which replacement of dead tissue cells with connective tissue cells.
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BRAINLYEST QUESTION A drug company performed a study to test the effectiveness of a new headache medicine. The researchers grouped the patients into two different groups. One group was given the pills that contained the new medicine. The other group were given pills that did NOT contain the new medicine. Why did the researchers NOT tell the patients which pill they were given?
A) to make sure they didn't get angry
B) to prevent errors in data collection
C) to keep people from leaving the study
D) to prevent bias in the data collection
Answers
Answer:
D) to prevent bias in the data collection
Explanation:
If the researchers told the patients of the pill they took, it could create bias.
Bias can make the experiment's outcome end in a different way because of the way it influences the people taking the pill.
Bias can create another factor in an experiment, making your results unreasonable due to the addition of another factor.
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Tay-sachs disease is an inherited genetic disorder in which cellular wastes are not properly cleared out from the cell. In turn, these wastes then accumulate to a toxic level within the cell, ultimately causing cell death.
Which labeled structure would be the most likely location in which Tay-sachs disease occurs?
Choose 1 answer:
(Choice A)
A
Structure A
(Choice B)
B
Structure B
(Choice C)
C
Structure C
(Choice D)
D
Structure D
Answers
Answer:
Its chromosome where it is located..
Chromosome is located in Nucleus soo the ans is A.
Explanation:
I am not sure though.
A. Structure A would be the most likely location in which Tay-sachs disease occurs.
What is Tay-sachs disease?
" Tay-Sachs disease is a rare genetic disorder passed from parents to child. It's caused by the absence of an enzyme that helps break down fatty substances."
How is Tay-sachs disease caused?
"Tay-sachs disease is caused by a defective gene on chromosome 15."
Where does Tay-sachs disease affect?
"Tay-Sachs disease (TSD) is a genetic condition that affects the nervous system."
Where is a chromosome located?
"A chromosome is located in the nucleus."
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whats the definition of weathering
Answers
the process of wearing or being worn by long exposure to the atmosphere
Explanation:
wear away or change the appearance or texture of (something) by long exposure to the air.
"his skin was weathered almost black by his long outdoor life"
How many alleles are in the gene pool?
1
2
3
Or 4
Answers
Answer:
3 Alleles
Explanation:
0_____________________________________0
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A car accelerates from 25 mi/hr to 55 mi/hr in 0.0083 hr. What is its acceleration?
Answers
The acceleration of the car, given it accelerated from 25 mi/hr to 55 mi/hr in 0.0083 hr is 3614.46 mi/hr²
How to determine the accelerationThe formula for calculating acceleration is given as follow:
a = (v – u) / t
a is the acceleration v is the final velocity u is the initial velocity t is the timeThe acceleration of the car can be obtained as illustrated below:
Initial velocity (u) = 25 mi/hr Final velocity (v) = 55 mi/hrTime (t) = 0.0083 Acceleration (a) =?a = (v – u) / t
a = (55 – 25) / 0.0083
a = 30 / 0.0083
a = 3614.46 mi/hr²
Thus, we can see clearly that the acceleration of the car is 3614.46 mi/hr²
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What is another way that nitrogen fixation can occur other than plant roots?
Answers
Answer: Heterotrophic Nitrogen Fixation by Free-Living Organisms
Explanation: Without direct contact with other species, a large number of heterotrophic bacteria fix a significant amount of nitrogen in the soil. The bacterial species Azotobacter, Bacillus, Clostridium, and Klebsiella are examples of this type of nitrogen-fixing organism. As was already mentioned, these organisms are self-sufficient in terms of energy and often obtain it through oxidizing organic molecules generated by other organisms or as a result of decomposition. Some free-living organisms have the ability to use inorganic substances as a source of energy due to their chemolithotrophic nature.
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Fact for each one.
Aquatic Ecosystems
Estuaries
Features/Facts:
-
-
-
Biotic factors:
-
-
-
Abiotic factors:
-
-
-
Intertidal
Features/Facts:
-
-
-
Biotic factors:
-
-
-
Abiotic factors:
-
-
-
Arctic
Features/Facts:
-
-
-
Biotic factors:
-
-
-
Abiotic factors:
-
-
-
Answers
Answer:
The answer is down below.
Explanation:
Estuaries
-More than 80 percent of all fish and shellfish species use estuaries as primary habitat or as a spawning or nursery ground.
-Estuaries are often called the “nurseries of the sea”.
-Estuaries and their surrounding wetlands are bodies of water usually found where rivers meet the sea.
Abiotic factors
In an estuarine ecosystem, these factors are light, oxygen, water, nutrients, temperature, salinity, and space. So just divide these into three.
Biotic factors
These include plants and animals such as shrimp, fish, and oysters
In order to make a foundry more environment friendly use: A. Renewable energy B. Recycled materials C. Reuse Sand D. All of the above
Answers
A foundry may considerably lessen its environmental impact and support sustainable practices by putting all of these measures—renewable energy, recycled materials, and sand reuse—into place. All of the above. The correct option is D
What is environmentally friendly?It is advised to use a variety of strategies to make a foundry more ecologically friendly. Utilizing renewable energy sources, such as geothermal, solar, or wind energy, can assist cut the greenhouse gas emissions brought on by energy use. Utilizing recycled materials in the foundry process lessens the demand for mining and processing fresh raw materials while also conserving natural resources.
Another environmentally friendly foundry procedure is the reuse of sand. After each casting, spent sand can be cleansed, cleaned, and reused in additional casting processes rather than being disposed of. By doing this, the trash produced and the environmental damage caused by the disposal of sand are reduced.
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What is fire extinguisher?
Answers
Answer:
fire extinguisher, portable or movable apparatus used to put out a small fire by directing onto it a substance that cools the burning material, deprives the flame of oxygen, or interferes with the chemical reactions occurring in the flame.
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a portable device that discharges a jet of water, foam, gas, or other material to extinguish a fire.
A fire extinguisher is a handheld active fire protection device usually filled with a dry or wet chemical used to extinguish or control small fires, often in emergencies.
A fire extinguisher is a portable device used to control or extinguish small fires. It is designed to be easily operated by a person and is commonly found in buildings, homes, and vehicles.
Fire extinguishers work by releasing a substance or agent that helps suppress the fire. The most common type of fire extinguisher contains a chemical called dry chemical powder. When the extinguisher is activated by pulling a pin and squeezing a handle, the powder is expelled onto the fire. The powder works by smothering the fire, interrupting the chemical reaction that sustains it.
Fire extinguishers are typically classified into different types based on the type of fire they can effectively extinguish. These classifications include:
1. Class A: These extinguishers are suitable for fires involving ordinary combustible materials such as wood, paper, cloth, and plastics.
2. Class B: These extinguishers are designed for fires involving flammable liquids such as gasoline, oil, and grease.
3. Class C: These extinguishers are specifically for fires involving electrical equipment. They contain agents that do not conduct electricity, allowing them to be used safely on energized electrical fires.
4. Class D: These extinguishers are used for fires involving combustible metals like magnesium, titanium, and sodium. They contain special agents tailored to suppress these types of fires.
5. Class K: These extinguishers are specifically designed for fires involving cooking oils and fats typically found in commercial kitchens.
It's important to note that different fire extinguishers may have multiple ratings, indicating their effectiveness against different types of fires. For example, a fire extinguisher may have a rating of 2A:10B:C, which means it is effective against Class A fires with a rating of 2, Class B fires with a rating of 10, and Class C fires.
Remember, fire extinguishers are meant to be used as a first line of defense against small fires. In case of a large or spreading fire, it is crucial to evacuate the area and call emergency services. Additionally, it is important to regularly inspect and maintain fire extinguishers to ensure they are in proper working condition.
Discuss one reason why manipulating the characteristics of a human cell could be beneficial.
Answers
Manipulating the characteristics of a human cell can be beneficial for various reasons. One reason is that it can help in understanding the function and behavior of cells.
By manipulating specific characteristics, researchers can gain insights into how cells work and how they respond to different stimuli. This knowledge can be used to develop new treatments and therapies for various diseases and conditions. Additionally, manipulating cell characteristics can also aid in studying the effects of genetic mutations and environmental factors on cell function, leading to advancements in fields such as genetics and personalized medicine. These techniques have the potential to significantly advance the field of medicine and improve the quality of life for individuals affected by a wide range of diseases and conditions.
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how is the hammer structure related to its function
Answers
Answer:
hope it helps you..
Explanation:
Structure to Function Relationship:
The length of the handle allows for a swing that increases the speed of the head of the hammer. The head is composed of hard metal. When the head hits the nail, the metal transmits the force of the swinging hammer into the nail, driving it into the wood .
ano ang iyong naramdaman nang balikan at suriin mo ang pagpapasiya at pagkilos na isinagawa mo ng mga nagdaang araw
Answers
Answer:
I feel happy and sorry.
Explanation:
I have different feelings when I go back and analyze the decisions and actions I have taken in the past few days because some of my decisions are right and some are wrong. I feel happy when I go back and find out my decision and actions were right, while on the other hand, I feel sorry when I find out that some of my decisions and actions were wrong.
When was DNA discovered?
1927
1953
1957
1980
Answers
I NEED A QUESTION NOW Which of these is NOT required for a plant to perform photosynthesis? Select all that apply.
Responses
glucose
glucose
cool temperatures
cool temperatures
oxygen
oxygen
sunlight
Answers
Answer:
The answer is cool temperatures
Explanation:
the reason the answer is cool temperatures is because plants use the oxygen from the sunlight to change the water and carbon dioxide into glucose. there for making the answer cool temperatures.
Answer: Glucose, cool temperatures, and oxygen are correct
Explanation:
I got these right for me. sorry if there wrong.
I need the answers ASAP
HELP!!
Answers
Answer:
(b)
Explanation:
An environment in which nonliving substances and living organisms work together is called
A) a population
B) a community
C) an ecosystem
Hi can someone help me w this? thanks!
Answers
Answer:
the answer is
c.) ecosystem
Explanation:
ecosystem is a community of living things and non living things that interact in the same environment
Extra Information:. Population- is a group of individuals of the same species living within an area
. Species - is a group of individuals that can reproduce naturally with one another and create a fertile offspring
.Community- is a group of living and non living things in the same environment
.Biotic factors - living things such as plants,animals,bacteria,fungi ... that are found in ecosystems
.Abiotic factors - non living things such as water,air,sans,light.. that are found in ecosystems
HOPE THIS HELPDS :D
Answer:
ecosystem
Explanation:
ye