Ecosystems can lose equilibrium due to catastrophic natural events, human-induced disruptions, and the loss of keystone species. These events can overwhelm the ecosystem's resistance and resilience, leading to irreversible changes or total collapse.
An ecosystem can lose its equilibrium due to several factors, both natural and human-induced. Natural events such as bushfires, droughts, floods, and volcanic eruptions can cause temporary or long-term disruptions in an ecosystem, impacting its health and leading to possible ecosystem collapse or the need for ecological succession. Human impacts, including the introduction of toxic substances like DDT or excessive fertilizers, can lead to the depletion of key species and alter nutrient cycles and energy flows, which are central to maintaining ecosystem equilibrium. Additionally, the loss of keystone species can set off an extinction cascade, fundamentally changing the ecosystem's composition and function.
It's essential to understand the concepts of resistance and resilience in ecosystems, which describe an ecosystem's ability to withstand disturbances and bounce back to a state of equilibrium, respectively. When human actions such as pollution, overfishing, or habitat destruction overwhelm an ecosystem's resilience, it can cripple the ecosystem's ability to return to its original state, potentially leading to irreversible changes or complete destruction.
mixing the compost to your soil helps _____ the soil increase essential nutrients
A. moisten
B. aerate
C. dry out
or D. clean
Answer:
ITS B: ( AERATE ) I TOOK THE TEST AND GOT IT WRONG BC I PICK MOISTEN
Explanation:
Of the more than 35 animal phyla, the ____________ are considered the most successful of all animal groups.
Answer:
Of the more than 35 animal phyla, the arthropods are considered the most successful of all animal groups
what would occur in your muscles if there was a drastic decrease in calcium production?
It causes muscular irritability which can lead to cramps and twitching of facial muscles.
Final answer:
A drastic decrease in calcium production can lead to hypocalcemia, impacting muscle contractions and causing symptoms such as cramps, spasms, or tetany. Neurons can also be affected, leading to increased excitability and convulsions. Hypoparathyroidism, a common cause of low blood calcium, can severely disrupt neuromuscular function.
Explanation:
When there is a drastic decrease in calcium production in the body, it leads to a condition called hypocalcemia. This condition can negatively impact various systems within the body, including the muscular system. Without sufficient calcium, muscle contractions become impaired, which might lead to muscle cramps, spasms, or even prolonged contractions known as tetany. For neurons, low blood calcium can increase membrane permeability to sodium, which can result in muscle twitching and severe cases may lead to convulsions or paralysis, including respiratory muscles, and can prove to be fatal.
In the case of hypoparathyroidism, which is an underproduction of parathyroid hormone (PTH), there can be extremely low levels of blood calcium. As PTH helps regulate calcium levels in the blood, its deficiency can cause acute symptoms in muscle contractions and overall neuromuscular function. Muscle function impairment and tetany are common outcomes of severe hypocalcemia due to hypoparathyroidism.
would the phases of the moon be affected if the moon did not make one rotation for each revolution of earth.
no, as the moon's phases are due to the relative position of the earth and the sun so you may see a different part of the moon but the phases will stay the same
What elements generally make an ionic bond
An ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions. Ionic bonds are formed between a cation, which is usually a metal, and an anion, which is usually a nonmetal. A covalent bond involves a pair of electrons being shared between atoms.
All living organisms have complex organization, they are able to grow and develop, they are able to reproduce and pass on genetic information to their offspring, they are able to acquire and release energy, and they are able to maintain stable internal environments.
Which of the following statements can be inferred from the above information?
A.
Living organisms only need to possess one of the above characteristics.
B.
Living organisms share certain characteristics.
C.
Nonliving organisms are similar to living organisms.
D.
Nonliving organisms cannot possess any of the above characteristics.
living things share certain characteristics.(B)
All living things have certain traits in common that enable them to endure and flourish in their surroundings.
What does these qualities include ?These qualities include a complex organisational structure, the capacity for growth and development, the capacity for reproduction and the transmission of genetic material to progeny, the capacity for the storage and mobilisation of energy, and the capacity for the maintenance of a constant internal environment.
The right response is B since it can be deduced from this information that living things share a few traits. A further implication is that none of the qualities mentioned above are shared by nonliving entities, which is answer D.
Nonliving things can't reproduce, grow and develop, get and use energy, or keep their internal environment stable. Answer A is untrue since living things require Answer A is untrue because all of the qualities listed are necessary for living things to survive and flourish in their surroundings.
Answer C is also erroneous because nonliving objects lack all of the qualities mentioned above.
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What process is occurring in this illustration
Answer:
Option C, Secondary succession
Explanation:
It is the for of ecological succession in which life starts originating from a region where it has existed earlier but due to some natural incidences it has disappeared for a certain duration of time.
Here in this the rock is exposed which means some natural process has caused this. After which lichen and mosses starts originating from it. Then the other superior form of life starts originating.
Thus, it is an example of secondary succession.
Option C is correct.
An organism that is eukaryotic, multicellular, and has cell walls is
fungi
hope this helps :)
Fungi is the answer to this question.
Hope this helps.
Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun. What does the force of gravity depend on?
Answer:
Explanation:
In depends on two things:
1. The masses of the objects
2. The distance of the objects between them
Observations.
The greater the distance, the smaller the force of gravity.The smaller the distance, the greater the force of gravity.The greater the masses of the objects, the greater the force of gravity.The smaller the masses the smaller the force of gravity.During a trip to the Galapagos Islands, which observation led Charles Darwin to suspect that organisms change over time?
A) Island finches were able to breed with mainland species.
B) Island finches resembled mainland finches, but were not the same species.
C) Island finches resembled extinct species from other islands around the world.
D) Island finches did not have beaks of the same size and shape.
the answer is B( Island finches resembled mainland finches, but were not the same species.
An example of natural selection is the red color of a male cardinal. The females of the species choose mates based on the vibrant colors of the males’ feathers. If females begin using different criteria than feather color when they choose mates, what would most likely happen to the tails of peacocks over time?
If female’s species would chose their mates using different criteria other than feather, it may lead to decrease in variation in tail feather color because the only reason for the variation was selection pressure.
Explanation:
The opposite gender for mating are chosen based on specific criteria like color of feathers, eye color etc..The selection of opposite gender is the natural selection considering the red color of the male cardinal. This red color male cardinal which depends only on the sexual selection pressure will now reduce. As this was now neutralized it may lead to decreased variation.
Answer:
Decreased variation in the shades of red because no form of the trait is advantageous.
Explanation:
Natural selection may be defined as the differential reproduction and survival of the individual due to their differences in the phenotype. Natural selection acts as the main driving force for evolution.
The male cardinal red color gets change or may show variation as it is no longer used by them to attract the females. The red shade variation get decreases and may get changed over time. The red color trait is non advantageous and get extinct with time.
Which part of a cell carries the genetic material?
Cell membrane
Cell wall
Chloroplast
Nucleus
The Nucleus of a cell carries the genetic material, organized into structures known as chromosomes. Each chromosome contains many genes, which are the main units of heredity.
Explanation:The part of a cell that carries the genetic material is the Nucleus. The nucleus contains most of the cell's genetic material in the form of multiple linear DNA molecules organized into structures called chromosomes. Each chromosome carries a lot of genes, the basic physical and functional units of heredity.
Genes are distinct sequences of nucleotides forming part of a chromosome, the order of which determines the order of amino acids within protein molecules. Cell membrane, cell wall and chloroplast do not carry genetic material.
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Does Earth’s gravitational force field act on objects that aren’t touching Earth’s surface?
yes because when things are flying, they have to be propelled. Thats how gravitty works lol.
If ur talking about stuff in space, then yes to that too. They moon revolves because of gravity and inertia
Yes, Earth's gravitational force field acts on objects that aren't touching Earth's surface. The gravitational force between two objects, like Earth and any other object, depends on their masses and the distance between them.
What is the gravitational force?According to Newton's law of gravitation, the gravitational force between two objects is proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
The Earth's gravitational force is due to the planet's mass and size. All objects near the planet, including those above its surface, experience a gravitational pull because of the Earth's gravitational force.
Gravitational force is the force of attraction which is present between any two bodies and it is responsible for holding the objects in place.
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Which of the following is true about oxygen in plants? Oxygen is produced only for photosynthesis and is not used for any other purpose. Oxygen is stored in the plant for animals to consume and use for cellular respiration. Plants need to take in both carbon dioxide and oxygen for the process of photosynthesis. Plants both produce and use oxygen for photosynthesis and cellular respiration, respectively.
The answer is; Plants both produce and use oxygen for photosynthesis and cellular respiration, respectively.
Plants use the energy from the sun to split water molecules to H+ and O2-. The H+ is used to reduce carbon dioxide into glucose molecules. The oxygen is a byproduct that is evolved. However, the cellular respiration of plant cells is similar to that of other organisms on earth. They utilize oxygen to ‘burn’ glucose for energy.
Final answer:
Plants produce oxygen as a byproduct of photosynthesis and also consume it during cellular respiration to produce ATP.
Explanation:
Among the given options, the true statement about oxygen in plants is that plants both produce and use oxygen for photosynthesis and cellular respiration, respectively. During photosynthesis, plants utilize carbon dioxide and water, using sunlight as an energy source, to produce glucose and release oxygen as a byproduct. However, the same plants also take in oxygen for the process of cellular respiration, which occurs in all parts of the plant, not just the green parts containing chlorophyll. Oxygen is necessary for this process as it helps to break down glucose, releasing energy in the form of ATP which the plant uses for its metabolic activities.
what are the four major resources that affect population density
Thx for your help:)
population density are habitats, food, mates, and ... Decreases.
Natality, mortality, immigration and emigration affects population density.
What is population density?It is defined as the number of organisms in a given habitat during a given period of time.The factors that influences it include: food availability, weather and predation.Population density increases during natality and immigration (number of same species in a habitat that comes from somewhere else) whereas it decreases during mortality and emigration (number of same species leaving a habitat).What is natality?It is the rate of birth at given period. It increases the population density.What is mortality?It is the rate of death at given time.It decreases the population density.Hence, the population density is affected by immigration, natality, mortality and emigration.
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What are two Amphibian behaviors
ecosystem.
terristeral
Hey! Thanks for checkin in!
Frogs NewtsThose are the most common Amphibian behaviors.
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What is the difference between a nursing home and hospice
Nursing homes are where the patient lives in a hospital type setting with constant care. Hospice is a group of professional nurses and caregivers visiting the patients home and administering care in their final days.
Temperature can be used to measure a particle's
chemical energy.
ionic energy.
kinetic energy.
potiental energy.
In what way did the point mutation affect the protein?
Answer:
Point mutations can have several effects on the behavior and reproduction of a protein depending on where the mutation occurs in the amino acid sequence of the protein. If the mutation occurs in the region of the gene that is responsible for coding for the protein, the amino acid may be altered.
Explanation:
Which two words describe an organism that eats organisms as food
Carnivore, consumer
The two words that describe organisms that eat other organisms as food are 'consumer' for those who rely on others for energy and 'decomposer' for those who break down waste materials and dead organisms.
Explanation:The two words that describe an organism that eats other organisms as food are consumer and decomposer. Consumers are organisms that cannot produce their own food and rely on other organisms for energy. They include animals, some bacteria, and a few plants such as the pitcher plant. Consumers can be further divided into herbivores (like rabbits that eat plants), carnivores (like lions that eat other animals), omnivores (like humans that eat both plants and animals), and scavengers (like hyenas that eat dead animals). On the other hand, decomposers play a role in breaking down dead organisms and waste materials, thereby releasing nutrients back into the ecosystem. Examples of decomposers include fungi and certain bacteria.
Can someone plz answer 20 points
Do sharks have bacteria in their stomachs that help them digest food
Ruminants, such as cows and sheep, are those animals that have four stomachs; they eat plant matter and have symbiotic bacteria living within their stomachs to help digest cellulose.hope for brainlist please dont report me
Based on the diagram, which question was this student MOST LIKELY investigating?
1. there is not diagram to examine 2 no answer choice so how are we supposed to answer this?
what is the second step of protein synthesis?
The second step of protein synthesis is translation
Final answer:
The second step of protein synthesis is translation, where mRNA is read by a ribosome in the cytoplasm and tRNA molecules bring corresponding amino acids to form a polypeptide chain. The process consists of initiation, elongation, and termination stages.
Explanation:
The second step of protein synthesis is called translation. During translation, mRNA that has been transcribed from DNA is read by a ribosome to assemble a polypeptide chain. The ribosome facilitates the binding of transfer RNA (tRNA) molecules that have attached amino acids, corresponding to the codons on the mRNA. The tRNA transfers amino acids to the growing polypeptide chain in the correct sequence, contributing to the formation of a functional protein.
Steps of Translation:
Initiation: A ribosome binds to mRNA with the help of initiation factors and an initiator tRNA.Elongation: tRNA molecules bring amino acids to the ribosome, which adds them to the growing polypeptide chain.Termination: The process ends when a stop codon on the mRNA is reached, releasing the newly formed protein.Translation occurs in the cytoplasm of the cell where ribosomes are located and play a key role in assembling proteins.
Which is an environmental factor that affects skin color in humans? amount of food consumed amount of sunlight absorbed number of genes inherited number of linked genes
Answer: Amount of sunlight absorbed
Explanation:
The amount of sunlight absorbed by the body affect the color of the individual. Rest all the factors that affects the color of the individual are genetic factors.
The person who absorbs more sunlight will have more melanin concentration or amount in their cells as as compared to the person who absorbs less sunlight.
Hence, the correct answer is option sunlight absorbed.
A patient is suffering from polio, which is a viral disease. What treatment could have prevented the disease? The patient should have been vaccinated. Antibiotics should have been given to the patient. The patient should have consumed nutritious food. Surgery should have been performed on the patient.
The patient should have been vaccinated. The vaccine prevents you from getting polio
The treatment that could have prevented the polio disease is vaccination. Therefore, option (A) is correct.
What is vaccination?Polio is a viral disease that can be prevented through vaccination. The polio vaccine is safe, effective, and widely available. It is recommended that children receive a series of polio vaccinations, typically starting at 2 months of age.
Vaccination is the most effective way to prevent polio and protect against the serious complications associated with the disease. Antibiotics, nutritious food, and surgery do not prevent or cure polio as it is a viral infection.
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6. A farmer has a ten-acre plot to feed his family. What is the most efficient way to use the plot? Explain why you chose your answer.
a. grow corn and feed it to his family
b. grow corn and feed it to several cows, using the milk and meat from the cows to feed the family
The most efficient way to use the plot IS TO GROW CORN AND FEED IT TO SEVERAL COWS TO FEED THE FAMILY.
By growing corns and feeding it to several cows the farmer will be able to feed the cows adequately and they in turn will provide him and his family with enough milk and meat. Apart from this, the farmer will be able to sell the excess milk and meat for money and use the money to buy other things that his family need.
In addition, the wastes from the cow can be used as compost to maintain the fertility of his farm land, thus, he will not have to spend money on fertilizers and the land will serve him for a long period of time.
Which of the following is a protostome?
molluscs
sponges
cnidarians
chrodates
Molluscs are protostomes.
Mollusks are protostome
we know from the DNA unit that chromosome (which are made of DNA) are copied by a process called ______
We know from the DNA unit that chromosome (which are made of DNA) are copied by a process called Transcription
Answer:a
Explanation:
Which activity uses water for both recreational and industrial purposes?
machinery cooling
waterskiing
irrigation
fishing
According to the United States Geological Survey (USGS), industrial water is used for fabricating, processing, washing, diluting, cooling, or transporting a product. Water is also used by smelting facilities, petroleum refineries, and industries producing chemical products, food, and paper products.
irrigation
The activity that uses water for both recreational and industrial purposes is fishing. Thus, option "D" is correct.
What is fishing?Fishing refers to an activity which typically involves catching fish for both recreational (sports or hobby) and industrial (feeding or sales) purposes.
In finishing, the fish are caught from water such as a pool, lake, river etc. through the use of fishing nets, rods and lines and fish hooks.
Basically, when fishing is done with family members, peers or even individuals such as on a vacation, sports competition and pleasure, it is mainly considered to be for recreational purposes.
However, when fishing is done on a commercial basis such as selling them to consumers, it is considered to be for industrial purposes.
Hence, fishing is an activity which uses water for both recreational and industrial purposes.
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Technician A says that the oil control ring scrapes oil off the cylinder wall with each downward piston stroke. Technician B says that a typical oil control ring consists of two separate pieces. Who is right?
A. Technician B only
B. Both Technicians A and B wrong answer
C. Technician A only
D. Neither Technician A nor B
p.s "both"is wrong
Answer:
C. Only tech A is correct
Explanation:
Oil control rings are designed differently than compression rings. A typical oil control ring consists of three separate pieces: two very thin metal rings called scrapers, and a spacer ring called an expander placed in the groove between them.
Final answer:
Technician A is correct in saying the oil control ring scrapes oil off the cylinder wall with each downward piston stroke. Technician B is incorrect; oil control rings can be a multi-piece component, not necessarily two pieces. The right answer is C, Technician A only.
Explanation:
The question asks who is correct regarding the function and structure of an oil control ring in an engine. Technician A states that the oil control ring scrapes oil off the cylinder wall with each downward piston stroke, which is accurate. Its main function is to clear excess oil from the cylinder walls and return it to the sump. Technician B is not correct in stating that a typical oil control ring consists of two separate pieces. In reality, the oil control ring can be even more complex, often consisting of two thin rails with a spacer expander, making it more accurately a multi-piece component. Therefore, the correct answer to this question would be C, Technician A only.