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Related Questions
Replication of chromosomal DNA occurs __________. View Available Hint(s)for Part A whenever a cell makes protein before a cell divides to repair gene damage caused by mutation in the cytoplasm of a eukaryotic cell
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Replication of chromosomal DNA occurs before a cell divides. So option B or the second option is the correct choice.
The process of DNA replication occurs in the S (synthesis) phase of the cell cycle. By copying its genetic material, the cell gets ready for cell division during this stage. Chromosome DNA replication is a crucial mechanism that makes sure each daughter cell obtains an exact duplicate of the genetic material. It is necessary for proper genetic material transmission from one generation to the next.
More specifically, the DNA double helix unwinds and separates at locations known as the origins of replication, where DNA replication starts. The divided DNA strands are subsequently joined together by enzymes known as DNA polymerases to form complementary strands.
This produces two identical DNA molecules, each made up of a newly synthesized daughter strand and the parent strand. The cell can move on to other phases of the cell cycle, like mitosis or cell division, when replication is finished.
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The complete question is:
Replication of chromosomal DNA occurs __________.
A) whenever a cell makes protein
B) before a cell divides
C) to repair gene damage caused by mutation
D) in the cytoplasm of a eukaryotic cell
One of the major environmental problem which environmental cientit are concerned with i the lo of biodiverity. Why i thi a concern in environmental cience?
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The protection of habitat, legislation and treaties, and captive breeding are three effective methods for safeguarding biodiversity. the variety of species present in a region. a species that affects the persistence of numerous other species in an ecosystem.
Animals, plants, fungi, and even microorganisms like bacteria can all be present in a given area, which is referred to as having a high level of biodiversity. Similar to an intricate web, each of these species and animals work together in ecosystems to maintain equilibrium and support life. The broad variety of life on Earth is referred to as "biodiversity." It can also be used to refer to every species found in a specific area or environment. All life forms, including plants, microbes, animals, and people, are included in the term "biodiversity."
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If you work together with someone when writing up a lab report, can you both use the same (or nearly identical) answer for any of the questions?
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When working together with someone to write a lab report, it is generally not recommended to use the same or nearly identical answers for any of the questions.The purpose of a lab report is to demonstrate your individual understanding of the experiment, the data collected, and the conclusions drawn from the analysis.
Using the same answers as your partner may give the impression that you have simply copied each other's work without understanding the underlying concepts or performing the necessary analysis independently. It can raise concerns about academic integrity and may be considered a form of plagiarism.
Furthermore, lab reports often require critical thinking and analytical skills to interpret the results and draw conclusions. If you and your partner have the exact same answers, it might indicate a lack of independent thinking and analysis, which are important skills to develop in a scientific or academic setting.
That being said, collaboration and discussion are valuable during the process of writing a lab report. Working together allows you to share ideas, clarify concepts, and check each other's understanding. You can discuss your findings, compare data, and even review each other's drafts. However, when it comes to providing individual responses to questions or sections of the report, it's essential to ensure that your answers reflect your own understanding and analysis of the experiment.
In summary, while collaboration is encouraged during the writing of a lab report, it is important to provide individual answers that reflect your own understanding and analysis. Copying or using nearly identical answers from a partner can compromise the integrity of the report and hinder your personal growth as a student or researcher
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bracketing is often the first step in a descriptive phenomenologic stufy. what is one method of facilitating bracketing?
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One method of facilitating bracketing is content-loaded bracketing. Bracketing is the first step in a descriptive phenomenological study.
What is Bracketing?Bracketing is a systematic method of reflecting on preconceptions and prejudices in order to attain a more open attitude toward the experience being researched. In research studies, this technique is employed to ensure that the investigator's previous experiences and prejudices do not interfere with the outcomes of the study.
This technique aids in the discovery of the underlying meaning of an experience, which is essential in phenomenological inquiry. Content-loaded bracketing is one technique that may be used to encourage bracketing.
Content-loaded bracketing is a technique for making the content of an experience the focus of reflection. In this technique, the researcher is guided to reflect on the experience's context, specifics, and dynamics. The method assists researchers in becoming more aware of the various ways that experiences can be interpreted.
The method involves asking oneself what, where, and how questions about the experience's content. This procedure can be done during data collection or after data collection. During data collection, researchers can engage in content-loaded bracketing by noting their preconceptions about the experience being researched.
Researchers may reflect on their biases and opinions in the same way they do with the experience being researched. In this way, the study is more likely to result in a more objective understanding of the experience.
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Which of the following is true about the structure of DNA?
A.Hydrogen bonds form between the phosphate groups while the sugar and nitrogen bases form the backbone of the double helix
B.Hydrogen bonds form between the nitrogen bases while the sugar and phosphate groups form the backbone of the double helix
C.The sugar and phosphate groups form the rungs of the ladder with nitrogen bonded together by hydrogen bonds forms the rails
D.Nitrogen bases form the backbone of the double helix, while hydrogen bonds between the sugar and phosphate groups form the ladder
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Answer:
B option is correct.
Explanation:
hydrogen bond forms between nitogenous bases and sugars and phosphates forms the backbone.
questio 16 the amazon plankton bloom also releases oxygen into the
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The Amazon plankton bloom does release oxygen into the environment as a byproduct of photosynthesis.
During the plankton bloom in the Amazon, phytoplankton thrive in the nutrient-rich waters. Phytoplankton are autotrophic organisms that contain chlorophyll and other pigments, allowing them to capture sunlight and convert carbon dioxide and water into organic matter and oxygen. This process, known as photosynthesis, releases oxygen as a byproduct.
As the phytoplankton population grows during the bloom, they absorb carbon dioxide from the atmosphere and release oxygen into the water. Additionally, when phytoplankton die or are consumed by other organisms, the organic matter they produce sinks to the bottom of the water column. This process, known as marine snow, transports organic material to the seafloor, where it can decompose and release even more oxygen.
The Amazon plankton bloom is particularly significant because of its vast extent and productivity. It occurs annually when the nutrient-rich waters of the Amazon River flow into the Atlantic Ocean, creating favorable conditions for phytoplankton growth. This bloom contributes to the overall oxygen production in the region and supports a diverse marine ecosystem.
The oxygen released during the plankton bloom not only benefits the marine organisms in the Amazon region but also has a broader impact on the global oxygen cycle. It contributes to the oxygen levels in the atmosphere, which is vital for the survival of terrestrial organisms, including humans.
In summary, the Amazon plankton bloom plays a crucial role in oxygen production through the photosynthetic activity of phytoplankton. It releases oxygen into the water as a byproduct of photosynthesis, contributing to the oxygen levels in the environment and supporting the health of marine ecosystems.
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which of the following statements is false? which of the following statements is false? rhizobium bacteria fix calcium in the soil when they form a symbiotic relationship with legumes. mycorrhizal fungi form a symbiotic relationship with plants, allowing increased nitrogen absorption when associated with plant roots. nutrient transfer in many species involves symbiotic mutualisms. mycorrhizae are especially important in nutrient-poor soils and are found within the root systems of most plants. most herbivorous mammals depend on symbiotic bacteria in the gut to digest plant material.
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The statement that is incorrect is rhizobium bacteria fix calcium in the soil when they form a symbiotic relationship with legumes, the correct option is A.
Mycorrhizal fungi form a symbiotic relationship with plants, allowing increased absorption of nutrients, including nitrogen and phosphorus, when associated with plant roots. The fungi receive carbohydrates from the plant in return.
This mutualistic relationship is especially important in nutrient-poor soils, where it allows plants to access otherwise unavailable nutrients. Mycorrhizal associations are found in the root systems of most plants, including many agricultural crops, and can significantly enhance plant growth and yield, the correct option is A.
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The complete question is:
Which of the following statements is false?
A) rhizobium bacteria fix calcium in the soil when they form a symbiotic relationship with legumes.
B) mycorrhizal fungi form a symbiotic relationship with plants, allowing increased nitrogen absorption when associated with plant roots.
C) nutrient transfer in many species involves symbiotic mutualisms. mycorrhizae are especially important in nutrient-poor soils and are found within the root systems of most plants.
D) most herbivorous mammals depend on symbiotic bacteria in the gut to digest plant material.
Which of the following is an example of a plant virus?O BacteriophageO InfluenzaO FIVO TMV
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An example of a plant virus is the Tobacco mosaic virus (TMV), which when infecting plants, cause them to have an stunted and irregular growth of their tissues, such as leaf and stems, which provokes the plant to not developing well
How do poor
farming methods impact Earth?
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The main cause of pollution in many nations is agriculture. Pesticides, fertilizers, and other hazardous agriculture chemicals can contaminate fresh water, marine habitats, the air, and the soil. They may also persist for many generations in the environment.
What harmful effects does farming have on the environment?Large-scale conventional farming is heavily reliant on fossil fuels, herbicides, antibiotics, and synthetic fertilisers and emphasises intensive single crop production. While this method produces a lot of goods, it also adds to global warming, pollutes the air and water, and reduces soil fertility.Topsoil can dry out as agricultural fields take the place of natural vegetation. It is possible for nutrients to wash out and for the diversity and number of microorganisms that maintain the soil fertile to decline. It is possible for wind and rain to carry soil away.The production of biofuels, which can replace fossil fuels and cut greenhouse gas emissions across a variety of industries, is another benefit of agriculture. These steps are thought of as mitigating climate change.To learn more about environment, refer to:
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What is rule of dominance?
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Answer:
Mendel's law of dominance states that in a heterozygote, one trait will conceal the presence of another trait for the same characteristic. Rather than both alleles contributing to a phenotype, the dominant allele will be expressed exclusively.
Explanation:
Hope this helps:)
Which of the following is often a characteristic of the second trimester of pregnancy?
development of the placenta
the mother reporting increased energy
heartbeat first detectable
baby's eyes opening
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During the second trimester, the pregnant lady experiences increase in energy as the growth of the child increases linearly. Thus, the correct option is B.
Development of the placenta occurs in the first trimester and by the 12th week it is fully developed and functional.
Although eyes develop completely in the early stages of pregnancy by the 13th week, the eyes remain closed and open in the third trimester.
Heartbeat is evident since the beginning of pregnancy. The heart is in its primitive form at that stage and develops by the end of first trimester.
As weight of the mother starts increasing in the second trimester, the energy requirements also increase, due to increase in energy. The increase in energy is estimated to be around 45-170 kcal.
Thus, the correct option is B.
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Surface area equals 4 pi r squared where r is the radius of a sphere and pi is a constant that is roughly equal to 3 using the sample approximation above calculate the surface area of a sphere with the radius of 2 m
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Answer:
48m^2
Explanation:
im doing the same thing u are lol
Answer:
ya its 48
Explanation:
Im doing the same quiz
What is the group of macro nutrients ?
(a) N, P, K, Ca, Mg, S (b) Zn, Cu, Mo, Cl, Fe
(c) N, P, K, Zn, Ca, Mg (d) Cl, Zn, Mn, Ba
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Please Help!!
Which of the following statements is true of living systems!
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step by step explanation:
Primative human societies used plants for which reasons.
a. gathering for eating
b. staying warm
c. combating pain
d. choice 1 & 2
e. choice 1 & 3
f. choice 2 & 3
g. none of the above
h. choice 1, 2, & 3
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Answer: e. choice 1 & 3
Explanation:
Plants are used for medicine and for eating, not for staying warm.
The term used to describe the fact that cancer cells have lost the specializations of the cells from which they descend is
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The term used to describe the cancer cells which have lost specialization from which it originated is called dedifferentiation.
Cancer is defined as the uncontrolled growth of the cells which then develops into tumor. The tumor is of two types: benign and malignant. The benign tumor does not spread to other tissues of the body whereas malignant cancer spread to the underlying tissues. The tumor is formed as a result of dedifferentiation. The dedifferentiation is the inability of the cell to perform functional and structural differentiation.
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3) Describe the difference between growth and development.
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Answer:
Growth is just 'getting bigger', whereas development is improvement. Growth can be explained as becoming bigger or larger or having more importance. Growth is termed as a physical change, where as development is said to be physical as well as social or psychological change.
Explanation:
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PLZZZZ HELP 100 POINTS!!!
Scientific knowledge is based on evidence and is ________.
absolute
tentative
fiction
fact
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Answer:
tentative
Explanation:
science is not an absolute fact nor fiction, but rather not certain nor fixed based upon what is observed, making it tentative.
Answer:
I feel the best response to this question would be tentative
Explanation:
This is because of the nature of scientific knowledge. Knowledge and information we currently have about science are based on what we know so far however there are things in textbooks that have been "proven" wrong just based on the constantly evolving and changing state of the planet and new discoveries. A lot of scientific knowledge stems from theories. Mainly tho, scientific knowledge is tentative because it is often context-dependent and therefore based on what we have discovered and what we come to know as current but can never be absolutely based on the constant changes and new technology and discoveries being made.
after pollination, where does a seed grow in a flower?
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Once pollen gets to the ovary within the flower, the ovary develops into a fruit. The ovules inside the ovary develop into seeds inside of this fruit.
after water, which are the next most abundant substances in the human body?
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Answer:
Proteins
Explanation:
After water, Proteins are the next most abundant substances in the human body.
In adult men , 60% of body is comprised of water whereas in women , 55% of body is comprised of water.
Protein makes up around 20% in body and is present in every cell.
What are Proteins?Proteins are large complex molecules and play critical roles in the body. They do most of the work in their cells and required for structure functions and regulation of body tissues.
Proteins are made up of smaller units called amino acids, which are attached to one another in long chains.
There are 20 different types of amino acids that can be combined to make a protein.
The sequence of amino acids determines about each protein’s unique 3-dimensional structure and its specific function.
Amino acids are coded by combinations of three DNA building blocks (nucleotides), determined by the sequence of genes.
Functions of Proteins:
1. As an Antibody- Bind to specific foreign particles such as bacteria and virus to help protect the body.
2. As an Enzyme- Carry out thousands of chemical reactions taking place inside the cell
3. As a Messenger- Transmit signals to coordinate biological processes between different cells, tissues and organs.
4. As a Structural Component- Providing structure and support to cells.
5. Transport/Storage- Binding and carrying atoms and small molecules within cells and throughout the body.
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Question 1: The Birthmark is a hand. What does this represent? Question 2: Is there perfection that can be created by man? Explain Question 3: How would you interpret Aylmer's dream? What might it symbolize?
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In "The Birthmark," the birthmark is symbolic of humanity's imperfections. Hawthorne's story suggests that people are flawed and that seeking to make them perfect is futile and can result in tragic consequences.
Hawthorne's story suggests that people are flawed and that seeking to make them perfect is futile and can result in tragic consequences. Aylmer, the protagonist, becomes obsessed with his wife Georgiana's birthmark, which he views as a physical flaw, and is determined to remove it. In doing so, he believes that he can make her physically perfect and elevate her to his idealized vision of beauty.
However, in attempting to remove the birthmark, he ends up killing her, thereby demonstrating the danger and folly of trying to achieve physical perfection. In this way, the story serves as a cautionary tale against trying to achieve an unattainable perfection. It suggests that perfection is not something that can be created by man, and that to seek it is to court disaster. In the end, Aylmer realizes the futility of his quest and understands that his love for his wife is more important than any physical imperfections.
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What are some human impacts on the Phosphorus Cycle?
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Here is your answer!!
Please write from it
Thank you!!
Use the drop-down menus to identify which bacterial shape applies. a (rod-shaped) b (spiral-shaped) c (spherical)
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The identity of the bacterial shape is the following:
a (rod-shaped)- bacillus.
b (spiral-shaped)- spirillum.
c (spherical)- coccus.
What are bacteria?Bacteria are single-celled microorganisms found as free-living or parasites.
They are found in many shapes and sizes.
There are good bacteria that help humans and other animals, and bad bacteria are harmful to the animals.
Thus, the shape of the bacteria area (rod-shaped)- bacillus., b (spiral-shaped)- spirillum., c (spherical)- coccus.
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Answer✔ Bacillus
A (rod-shaped)
✔ Spirillum
B (spiral-shaped)
✔ coccus
C (spherical)
Explanation:
REM sleep becomes significantly more common between birth and age 2 years. True or Flase
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The statement "REM sleep becomes significantly more common between birth and age 2 years" is true.
What is REM sleep?Rapid eye movement (REM) sleep is a type of sleep characterized by fast and random eye movements, low muscle tone, and vivid dreams. Rapid eye movement (REM) sleep is one of the five phases of sleep that a person goes through, according to the American Sleep Association (ASA). It's believed to play a key role in memory consolidation and learning, as well as in brain and emotional development in babies and children. In babies and young children, REM sleep is more prevalent than in adults.
The statement "REM sleep becomes significantly more common between birth and age 2 years" is true because REM sleep is abundant in newborns and young babies, according to research, accounting for up to 80% of their total sleep time. As children mature, the amount of REM sleep they receive decreases to around 20% of their total sleep time.
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Which step in respiration utilizes a terminal electron acceptor such as diatomic oxygen (o2)?
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Oxygen serves as the final electron acceptor in cellular respiration, eletron transport chain. The electrons travel via the electron transport chain and ATPase, the enzyme that produces high-energy ATP molecules, before being taken up by oxygen.
What is electron transport chain?An electron transport chain (ETC) is a collection of protein complexes and other molecules that connect protons (H+ ions) across a membrane with the transfer of electrons from electron donors to electron acceptors via redox processes (both reduction and oxidation occur simultaneously) a group of proteins in the mitochondria's inner membrane. The inner mitochondrial membrane of eukaryotic organisms houses the electron transport chain and the location of oxidative phosphorylation.The ETC receives electrons from NADH and FADH2 through the cooperation of four big multisubunit enzyme complexes and two mobile electron carriers. The electron transport chain contains a large number of membrane-bound enzymes.Learn more about the electron transport chain with the help of the given link:
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16.
Botulism is a serious form of food poisoning. It results when a
substance called botulinus toxin, produced by bacteria, prevents the
release of acetylcholine from motor nerve fibres. The effect is
A. contraction of all skeletal muscles, resulting in paralysis
B. the inability of ATP to be released
C. a decrease in pH due to buildup of lactic acid
D. the failure of muscles to be stimulated
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A. Contraction of all skeletal muscles, resulting in paralysis
what cells do rhinos contain
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Answer:
Typical animal cells.
cell fractionation is commonly used in biological research to * 5 points a) sort cells based on their size and weight. b) visualize the 3-d structure of cell membranes. c) isolate organelles to examine their biological functions. d) examine the distribution of organelles within the cell.
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Two types of electron microscopes are commonly used to study cells: transmission and scanning. In principle, transmission electron microscopy is similar to viewing stained cells with brightfield light microscopy.
However, electron microscopes can produce images of things as small as 0.001 microns (200 times smaller than optical microscopes). In other words, while light microscopy shows the structure of cells, electron microscopy shows ultrastructure. In reality, bacteria and mitochondria, with a size of about 500 nm (0.5 μm), are generally the smallest objects with distinct shapes that can be distinguished by light microscopy. The finer details are hidden by effects arising from the wave nature of light. The smooth endoplasmic reticulum (SER) is the primary site of synthesis of essential lipids such as phospholipids and cholesterol.
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what is the evolutionary force behind all the different species at the present time?
Answers
Answer:
D
Explanation:
Those traits are passed down to other related animals
1. Which of these limiting factors is density independent?
a. Predation
b. Natural disasters
c. Competition
d. Disease
2. The natural greenhouse effect keeps the Earth’s temperatures warm enough for life.
a. True
b. False
3. The more biodiversity in an ecosystem….
a. the lower the stability of that ecosystem.
b. the more disturbances that ecosystem experiences.
c. the greater the stability of that ecosystem.
4. Which one of the following human activities is the greatest threat to biodiversity?
a. Habitat destruction
b. Climate change
c. Introduced species
d. Pollution
e. Overharvesting
5. Which of the following pairs of events was most responsible for the rapid increase in human population?
a. Black plague and development of fire
b. The industrial revolution and energy from coal
c. Steam power and energy from burning wood
d. Agricultural green revolution and antibiotic availability
6. What might happen if man continues to burn fossil fuels and put more carbon dioxide into the atmosphere?
a. Overall global temperatures will be warmer.
b. There might be more frequent and more severe droughts.
c. There might be more frequent and more severe storms.
d. All of the above are possible if man continues to add carbon dioxide to the atmosphere.
7. Ecosystem ________________ is anything that disrupts the homeostasis of an ecosystem.
a. disturbance
b. resistance
c. resilience
d. respiration
8. ___________________ diversity describes the variety and abundance of different types of species that inhabit an area.
a. Genetic
b. Species
c. Ecosystem
d. Terrestrial
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Natural disasters in an ecosystem are density-independent limiting factors because their effects do not depend on the size of the population. The natural greenhouse effect involves trapping heat from the sun to keep the planet warm enough to support life.
Thus, the greater the biodiversity in an ecosystem, the more stable will be the ecosystem. Habitat destruction is the greatest threat to biodiversity. The agricultural green revolution and the availability of antibiotics are responsible for increase in human population. Burning fossil fuels releases carbon dioxide into the atmosphere which are contributing to global warming.
Ecosystem disturbance is anything that disrupts the balance of an ecosystem. Species diversity refers to the variety of different species and their population in a particular area.
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