Type up your dichotomous key and answer the following questions:
Why did you choose the five identifying characteristics you used in your dichotomous key?
Was the person who you gave your key to able to accurately identify the fruit? Explain why or why not.
What two other fruits could your dichotomous key work for?
What other category of items could you create a dichotomous key for?
My dichotomous key are;
Is it fresh.Does it have an even taste.Does it have any seed.Is it soft and fluffy.Are they greenWas the person who you gave your key to able to accurately identify the fruit?Yes, and it is known to be an apple fruit.
What two other fruits could your dichotomous key work for?It could be used for a pear or a straw berry.
What other category of items could you create a dichotomous key for?I can create for a bird and animals.
What is a Dichotomous Key?This is known to be a method used to know a species by answering a number of questions that is set based on some likely features (such as physical characteristics)
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According to the onandaga creation story, where do the seeds that for the trees, grass, and flowers on earth come from?
The seeds that for the trees, grass, and flowers on earth come from branch of the great tree of Skyland.
What is the Onondaga creation story?
When the Earth grew then the two Swans let the wife rest on the Great Turtle's back. When the wife comes to Earth, she opened her hand and the seeds from the Great Tree fell to the earth. Then from those seeds tress and the grass start growing. Life on Earth had now begun in the form of trees, grass and flowers. from branch of the great tree of Skyland the seeds that for the trees, grass, and flowers on earth come.
So we can conclude that the seeds that for the trees, grass, and flowers on earth come from branch of the great tree of Skyland.
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The breakup of the supercontinent of Rodinia may have helped create conditions favorable for evolutionary advancement. How?
The breakup of the supercontinent of Rodinia created new mountains and land surface for new organisms to live on.
What are supercontinents?Supercontinents are large continents which are composed of other continental blocks of the earth.
One of the supercontinents was Supercontinent Rodinia.
The breakup of the supercontinent of Rodinia created new mountains providing a land surface for organisms crawling out of the sea to live on.
In conclusion, supercontinents are composed of fused continental blocks.
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The high level of diversity in the fossils found at the sites of Jebel Irhoud, Omo, and Herto in Africa support
The first fossils of Homo sapiens are found across the African continent: Jebel Irhoud, Morocco (300,000 years old), Florisbad, South Africa (260,000 years old) and Omo Kibish, Ethiopia (195,000 years old). This indicates a complex evolutionary history of our species, possibly involving the entire African continent.
Where was the oldest human fossil found?Named Omo I, the fossils were found in the 1960s, in the Omo Kibish Formation, Ethiopian part of the Rift Valley, in the eastern portion of the African continent. The region is an area of high volcanic activity and a rich source of early human remains, as well as artifacts such as stone tools.
With this information, we can conclude that The oldest fossils ever found of modern humans (Homo sapiens) are at least 233,000 years old.
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A student did an experiment with ice. A beaker of ice was placed on a hot plate for 30 minutes and its temperature was recorded after every 5 minutes. The table below represents how the temperature and state of ice changes with time.
Time from start (in minutes) 0 5 10 15 20 25 30
State of matter in beaker ice water P water Q steam steam
Temperature of matter in beaker (in ° C) 0 0 50 80 100 100 142
What do the labels P and Q most likely represent?
both P and Q represent ice
both P and Q represent water
P represents ice and Q represents steam
P represents steam and Q represents ice
From the table, we can see that P and Q represent water. (Option B)
What does P and Q represent?We know that the liquid range of water is 0 - 100 degrees Celsius. Within this temperature range, water exists as a liquid substance.
Looking at the table we can see that the temperatures of P and Q are 50 and 100 degrees Celsius respectively hence both P and Q represent water.
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Cold water is ________ than warm water and salty water is ________ than fresh water.
This disease is caused by strains of streptococcus pyogenes which produce an erythrogenic toxin due to the presence of a lysogenized bacteriophage?
The scarlet fever and types of erythrogenic toxins are produced by the streptococcal strains.
The scarlet fever is a streptococcal disease. The erythrogenic toxins produced by GABHS are the cause of the rash of scarlet fever.
The scarlet fever is also known as "scarlatina" in old literature references.
It is a syndrome which is characterized by exudative pharyngitis ,fever, and bright-red exanthem. The cause of it is streptococcal pyrogenic exotoxins (SPEs) types which are as- A, B, and C produced by group A beta-hemolytic streptococci (GABHS) found in secretions and discharge from the nose, ears, throat, and skin.
Although scarlet fever may follow streptococcal wound infections or burns, as well as upper respiratory tract infections.
Attached with this is the image for Scarlet fever.
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Which of the following statements might someone use to most support a decision to buy organic produce?
The agricultural demand has caused water shortages in many areas.
The living conditions of livestock have decreased due to overcrowding.
The use of chemicals on crops poses known health risks to humans.
The application of pesticides has had a negative environmental impact.
The use of chemicals on crops poses known health risks to humans. this statement most support a decision to buy organic produce.
The agriculture industry has become more industrialized, which has increased the chemical load on the environment. Agrochemicals known as pesticides are applied to agricultural fields, public health initiatives, and urban green spaces to protect people and plants from numerous diseases. Their side effects, however, can be a significant environmental health risk factor due to their proven capacity to have a wide range of detrimental health and environmental impacts.Produce that is organic uses fewer pesticides.Because organic food lacks preservatives that extend its shelf life, it is frequently fresher.Organic farming typically benefits the environment.Animals kept organically are not fed animal byproducts, growth hormones, or antibiotics.learn more about organic produce here: https://brainly.com/question/14318031
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Which statement best describes how Nixon’s resignation speech and the Washington Post article on the resignation address the same subject in different ways?
A. In the speech, President Nixon describes the views of his family, friends, and staff, but the article does not include any information about those people’s feelings or beliefs.
B. While the article focuses only on the immediate events, the speech presents Nixon’s resignation within a broader context of world history.
C. The speech is intended to present President Nixon in the best possible way, while the article offers a neutral presentation of President Nixon.
D. The article offers a specific year-by-year list of President Nixon’s accomplishments during his presidency, while the speech focuses solely on what happened in his last year in office.
The speech is intended to present President Nixon in the best possible way, while the article offers a neutral presentation of President Nixon. Option C
Why did Nixon resign?Nixon was forced to resign because he was indicted by house committee that accused him of obstructing the course of justice and holding the congress in contempt.
The statement best describes how Nixon’s resignation speech and the Washington Post article on the resignation address the same subject in different ways is; "The speech is intended to present President Nixon in the best possible way, while the article offers a neutral presentation of President Nixon." Option C
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A hanging person meets instant death why??
One or more of the following medical issues, some of which are fatal, may result from a hanging: cerebral hypoxia caused by carotid artery closure.
What is cerebral hypoxia?Cerebral hypoxia is a condition where there is insufficient blood flow to the brain but a reduction in oxygen supply.
Patients who suffer from cerebral hypoxia-induced brain damage can benefit from treatments. However, no one is capable of reviving lost brain tissue or healing a brain damage. The illness may cause permanent brain damage. It can be fatal if it goes on for too long.
A hanging may cause one or more of the following medical conditions, some of which are fatal: Closure of the carotid artery results in cerebral hypoxia.
The jugular veins are sealed along with cervical fracture, which can result in acute spinal cord damage or even unintentional decapitation.
Thus, due to this, hanging person meets instant death.
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24. Strengthening some synapses and weakening others establishes neural circuits that contain memories; the low-frequency stimulation of synaptic inputs to a cell can _____ their strength in a phenomenon known as _____.
Strengthening some synapses and weakening others establishes neural circuits that contain memories; the low-frequency stimulation of synaptic inputs to a cell can decrease their strength in a phenomenon known as long-term depression.
The effect of long-term depression can arise from neural effect of synapses. The synaptic impulses start to decrease gradually when a person is suffering from long-term depression. This decreased neural synapses arise from long-term exposure to stress that is chronic. It can also stem from anxiety. The continuous exposure of the neurons to stress and anxiety can also lead to degeneration and depletion of the cells present in the nervous system. Also the cortisol levels rise during depression and it is regulated by the hippocampus. This leads to a delay or restriction in the developing neurons inside the brain. Long-term depression can lead to increased chances of getting addicted to alcohol or drugs.
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Natural formation processes include such activities as plowing, building structures, or making tools.
False - plowing, building structure or making tools are not natural formation process.
Natural formation processes are not the man made process.
The natural and human-made processes known as formation processes are what give the archaeological record its shape. whereas environmental elements that affect the conservation of archaeological artifacts are natural formation processes.
Natural formation processes includes floralturbation, faunalturbation, cryoturbation, argilliturbation, and graviturbation.
Floralturbation is the disruption of vegetation caused by tree roots.
Plowing, building structure and making tools are the human made process.
Hence, It is false statement.
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In healthy individuals all of the following parts of the urinary tract are sterile except: a. lower folds of the urinary bladder b. nephrons c. the ureter of the kidney d. the portion of the urethra closest to the urethral opening
Correct answer-
a. lower folds of the urinary bladder- This is the correct answer because the bladder is the only part of the urinary tract which is home to microflora or microorganisms, even if the individual is healthy. This region is not sterile.
Incorrect answers-
b. nephrons- This is incorrect because the nephrons are involved in the process of urine filtration from blood. This region needs to be sterile so that filtration can be carried out without contamination.
c. the ureter of the kidney- This is incorrect because the ureter is sterile because of the chemical composition of the urine that travels through it to the bladder.
d. the portion of the urethra closest to the urethral opening- This is also incorrect because if the urethra or urethral opening is not sterile this leads to urinary tract infection or UTI.
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What are the differences between bacterial chromosomes and eukaryotic chromosomes?
Prokaryotic chromosomes are found in the nucleoid, while those of eukaryotes are found inside the nucleus.
Eukaryotic cells contain a membrane-bound nucleus (as well as membrane-bound organelles), whereas prokaryotic cells have not. This is the primary distinction between the two types of cells.Bacteria have a single circular chromosome made of double stranded DNA, whereas humans have 46 chromosomes made of linear DNA. Similar to the genetic material present in all living things, this circular DNA serves to sustain bacterial growth, cellular respiration, and reproduction.Bacteria are typically thought of as genetically haploid, have a quick generation rate, and are quickly able to reach high population densities. As a result, standard genetic analysis of bacteria is much simpler than that of diploid eukaryotes.learn more about chromosomes here: https://brainly.com/question/13148765
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Telomerase is needed in DNA replication to fully reproduce the Group of answer choices soma in the cells bodies. sanchi levels in cells necessary for continued replication. telomeres when cells divide. cross-linking collagen needed for cell survival.
(c) Telomeres when cells divide.
What does the telomere do in the body?A chromosome's end contains a stretch of repeating DNA sequences known as a telomere. Chromosome ends are shielded from fraying or tangling by telomeres. The telomeres get a little bit shorter every time a cell divides. They eventually get so short that the cell can no longer successfully divide, and the cell then perishes.
With age, telomere length decreases. The health and lifespan of an individual are impacted by the progressive shortening of telomeres, which causes senescence, apoptosis, or oncogenic transformation of somatic cells. Reduced survival and higher illness incidence have been linked to shorter telomeres.
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1. state the characteristics of Chrysophytes.
2. write the characteristics of dinoflagellates.
3. write the characteristics of euglenoids.
4. write the characteristics of Slime moulds.
1. Chrysophytes
⇒ Unicellar
⇒ Present in water bodies with low calcium levels.
⇒ Golden yellow colour due to accessory pigment.
⇒ Cell walls made of cellulose and silica.
⇒ Free swimming.
⇒ Two unequal flagella.
2. Dinoflagellates
⇒ Dinoflagellates are essentially golden-brown, biflagellate, unicellular motile protists.
⇒ Golden brown is the primary color, but due to changes in the ratios of other pigments, it may also take on yellow, green, brown, or even blue forms.
⇒ Theca or lorica, composed of articulated and sculpted cellulose plates, is a stiff covering that typically covers cells.
⇒ One flagellum is transverse and the other is longitudinal, making the two flagella distinct (heterokont).
⇒ Mesokaryon is the name given to the big nucleus.
⇒ Chlorophyll a and chlorophyll c are found in plastids or chromatophores.
⇒ In the sea, certain dinoflagellates like Gymnodinium and Gonyaulax proliferate in vast numbers, turning the water red and resulting in the so-called "red tide."
⇒ Dinoflagellates in the ocean exhibit bioluminescence. such as Noctiluca.
3. Euglenoids
⇒ Unicellular protists called euglenoids, like the genus Euglena, are frequently found in freshwater.
⇒ The pellicle, a protein-rich cell membrane, exists in place of the cell wall.
⇒ They bear two flagella on the anterior end of the body.
⇒ A small light sensitive eye spot is present.
⇒ They can prepare their own food because they have photosynthetic pigments like chlorophyll. They act like heterotrophs when there is no light, though, by catching other tiny aquatic creatures.
⇒ They are referred regarded as the connecting link between plants and animals since they exhibit both plant and animal-like characteristics, making it difficult to categorize them.
4. Slime moulds
⇒ Chlorophyll does not exist in them.
⇒ Only the plasma membrane encloses them. The spores, however, contain cellulose cell walls.
⇒ They often reside near decomposing vegetation.
⇒ They have a diverse spectrum of coloring.
⇒ They are saprotrophic or phagotrophic feeders.
If a biologist is measuring diversity by calculating the proportion of individuals of each species, he or she is actually calculating the ______ of species in the community.
If a biologist is measuring diversity by calculating the proportion of individuals of each species, he or she is actually calculating the species evenness of species in the community.
What is species evenness?When there is an environmental gradient in the study region, systematic sampling is performed.To take systematic samples along the environmental gradient, a transect is utilized.A population is a collection of creatures belonging to the same species that coexist in a certain location. Within a given area, more than one population may exist. It's possible for populations of Saguaro cacti, Cactus Wrens, and Bark Scorpions to coexist in the same places.A population is a collection of people belonging to the same species who are present in the same location at the same time. All of the people in all of the interacting populations in a given area make up a community.Learn more about population here:
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Natural resources, or land, can include the fertility of the land, minerals below it, and what other aspects? human resources human resources water water human capital resources
Natural resources, or land, can include the fertility of the land, minerals below it, and water.
Natural resources are those that are derived from nature and used largely unaltered. This encompasses the origins of desirable traits like those used for business and industry, aesthetic appeal, scientific curiosity, and cultural significance. Natural resources include things like stone, sand, metals, oil, coal, and natural gas. Air, sunlight, soil, and water are examples of other natural resources. Plants, fish, birds, and animals are all examples of natural resources. Food, fuel, and raw materials for the manufacture of commodities are all made with the help of natural resources.One of the most significant natural resources that emerges from forests is water.
Natural land regions benefit from the nutrients, water, oxygen, and heat provided by the soil.
The third essential resource for people, animals, plants, and all other living things in a natural environment is air.
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Bacteria can make their own folic acid, which is required for nucleic acid synthesis, but humans cannot and instead have to ingest folic acid. Trimethoprim is an antimicrobial drug that inhibits one of the enzymes involved in making folic acid. This drug inhibits the growth of bacterial cells but not human cells. This is an example of
This drug inhibits the growth of bacterial cells but not human cells. This is an example of the selective toxicity of antibiotics.
Folic acid is an essential component for all cells to synthesize nucleic acids (DNA and RNA). Human cells do not synthesize folic acid and they take it through food. Bacterial cells are impermeable to folic acid and hence they need to synthesize their own folic acid.
Antibiotics target the metabolic pathway of folic acid synthesis in bacteria by inhibiting one of the enzymes in this pathway. These drugs are only toxic to bacteria but not to humans because humans do not have the folic acid synthesis pathway and hence they do not get affected by the action of the antibiotic. This is known as the selective toxicity of antibiotics.
These antibiotics are designed in a way to target the infecting agent (bacteria) while rendering minimal or no toxicity to the host (humans).
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The subclavian artery is renamed the artery after it passes over the lateral border of the first rib.
The subclavian artery is renamed as axillary artery after it passes over the lateral border of the first rib.
What is axillary artery?The subclavian artery continues as the axillary artery at the lateral aspect of the first rib, serving as the primary artery of the upper extremity. The artery has three sections based on its proximity to the pectoralis minor muscle, each of which has six major branches.A sizable muscle vessel that passes through the axilla is called the axillary artery. It is in charge of delivering oxygen-rich blood to the upper limb as well as to a portion of the scapula's and upper lateral thorax's musculocutaneous system.As a result, two primary arteries rather than one supplied the upper limb's axillary region in particular with arterial blood on both sides. These two arteries may be lingering branches of the capillary plexus of the growing limb buds because they came from the first portion of the axillary artery.Learn more about axillary artery here:
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What is the norm of reaction? Multiple choice question. The combination of tissues and organs that are affected by a pleiotropic mutation The phenotypic range displayed by individuals with a particular genotype under different environmental conditions The ability of a single wild-type allele to produce enough protein to confer a wild-type phenotype in a heterozygote
The norm of reaction refers to the phenotypic range displayed by individuals with a particular genotype under different environmental conditions.
Norm of Reaction
The norm of reaction or the reaction norm refers to the range of phenotypes exhibited by a genotype in varying environmental conditions. The norm of reaction assesses the environmental variation and its contribution to producing the phenotypic variation that may occur in the same or related species.
Phenotypes and Environment
The production of a phenotype depends on the genotype and the interaction of the same with the environment. The norm of reaction often represents the limit of phenotypic variations possible for a genotype in an environment. The interaction of genotype and environment was described by Richard Woltereck. Such interactions occur in many dimensions and multiple levels of development.
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What evidence suggests that proteins are synthesized and modified in the rough er as opposed to the smooth er?
The presence of ribosomes on the rough ER suggests that the proteins are synthesized as well as modified there as opposed to the smooth ER.
Ribosomes are responsible for the synthesis of proteins from the amino acids. They translate each codon on the RNA template and match it with the appropriate amino acid to make a protein. This process is known as translation. Ribosomes can be found free in the cytosol or attached to the surface of the endoplasmic reticulum. When the ribosomes are bound to it, it is known as the rough ER and without it, it is called smooth ER. Smooth ER performs different functions like the synthesis of lipids and phospholipids. Since it does not have ribosomes, it cannot synthesize proteins.
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After teaching a group of students about hemophilia, the instructor determines that the students have understood the information when they identify hemophilia a as involving a problem with?
After teaching a group of students about hemophilia, the instructor determines that the students have understood the information when they identify hemophilia A as involving a problem with Factor VIII.
What is hemophilia A?Hemophilia A is a type of blood disorder that is genetically related to the deficiency of clotting factor VIII.
This usually affects the males and females are usually the disorder carries.
Therefore, after teaching a group of students about hemophilia, the instructor determines that the students have understood the information when they identify hemophilia A as involving a problem with Factor VIII.
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Biological membranes are selectively ______, meaning they allow only specific types of molecules to pass into or out of the cell.
Biological membranes are selectively permeable as it allows only some substances and molecules to pass into or leave the cell. Selective permeability is defined as ability of the cell membrane to allow certain substances to pass through while keeping others out. Molecules can selectively pass through the cell membrane, small hydrophobic molecules and gases like oxygen and carbon dioxide cross membranes rapidly. Small polar molecules, such as water and ethanol, can also pass through membranes, but they do so more slowly.
Plasma membranes allow certain substances to enter and leave a cell, while preventing harmful material from entering and essential material from leaving. In other words, plasma membranes are selectively permeable they allow some substances through but not others.
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In plants, the reproductive structure that produces pollen and seeds is the __________.
Group of answer choices
phloem
xylem
gametophyte
flower
What is the term for the gurgling sounds that infants make in the back of their throats?
Babbling is the term for the gurgling sounds that infants make in the back of their throats
Babbling is a combination of consonant and vowel sounds — single syllable sounds like “pa” or “ba,” or long “ba-ba-ba-ba-ba.” Over time, baby babble evolves into word-sounds and eventually, basic words.
It is caused by air passing through normal saliva or refluxed milk. These gurgling noises are likely to build up during sleep. Slowly, the newborn learns to swallow more often. Nasal Noises are usually caused by dried mucus in the nose.
It usually occurs between 6 and 9 months. Babbling turns into baby jargon, or “nonsense speech.”
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The styloid process, zygomatic process, and auditory ossicles are associated with the?
The styloid process, zygomatic process, and auditory ossicles are associated with the Temporal lobe.
The lower lateral walls of the skull are primarily made up of the temporal lobe. The bulk of the cranial nerves traverses it, which houses the middle and inner parts of the ear. Five separate components make up the temporal bone. Most of the bone comprises the squamous, tympanic, and petromastoid portions, with the zygomatic and styloid processes extending outwards. Sound waves are converted into pressure waves in the perilymph and endolymph via the tympanic membrane, the auditory ossicles, and other structures.
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How is an industrial society likely to address the problem of producing too
much air pollution?
A. By cutting down forests to produce more pastureland
B. By developing and using wind energy technologies
C. By requiring licenses for hunting and fishing
D. By having power plants switch from burning coal to burning oil
Answer:
B. By developing and using wind energy technologies
Explanation:
Wind energy is a clean and renewable resource that can help to reduce air pollution. Wind turbines work by converting the kinetic energy of the wind into electrical energy, which can then be used to power homes and businesses. By increasing the use of wind energy, we can reduce our reliance on polluting fossil fuels and help to create a cleaner, healthier world.
Which metabolic pathway requires a proton gradient?
a. the oxidation of pyruvate to acetyl coa .
b. the citric acid cycle.
c. oxidative phosphorylation.
d. glycolysis fermentation.
Oxidative phosphorylation requires a proton gradient.
Cells use enzymes to oxidize foods in the metabolic pathway known as oxidative phosphorylation, electron transport-linked phosphorylation, or terminal oxidation, which releases chemical energy to create adenosine triphosphate. This happens inside mitochondria in eukaryotes. The majority of the energy required for biosynthesis, maintaining a healthy ion balance, and mechanical effort is provided by oxidative phosphorylation, which is the principal source of ATP in higher animals.A succession of proteins and electron carriers in the mitochondrial membrane, as well as the electron transport chain, are all involved in the process of oxidative phosphorylation.learn more about Oxidative phosphorylation here: https://brainly.com/question/13254827
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Effects likely to be encountered when each organism is destroyed in a food chain consists of grean leaf ,slug,shrew and fox
The effects can be encountered to other organisms when each organism is destroyed in a food chain that consists of green leaf, slug, shrew and fox.
What are the effects of destroying organism in the ecosystem?Yes, effects likely to be encountered when each organism is destroyed in a food chain consists of green leaf, slug, shrew and fox because every organism in the ecosystem depends on the other organism for their survival.
So we can conclude that the effects can be encountered to other organisms when each organism is destroyed in a food chain that consists of green leaf, slug, shrew and fox.
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