This is most likely because the river separated one species of mice into two different species, hence option B is correct.
This is an illustration of the form of speciation known as allopatric speciation, which takes place when an organism population is geographically separated from the rest of the population.
The river served as a geographical barrier in the case of the mice, prohibiting interbreeding between the two groups. The two groups may have developed through time to have distinct physical traits, such as various fur sizes or colors.
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Which of the following is "not" likely to cause a magnet to lose
its magnetism?
a. Striking it with a hammer.
b. Cooling it.
c. Dropping it repeatedly on the ground.
d. Heating it.
The magnetic field of a magnet is strongest
a. at its north pole.
b. at its south pole.
c. in the middle.
d. at both of its poles.
The answers include the following:
The following which is "not" likely to cause a magnet to lose its magnetism is cooling it and is therefore denoted as option B.The magnetic field of a magnet is strongest at at both of its poles and is denoted as option D.What is a Magnet?This is referred to as a material or object that produces a magnetic field and it has two poles which are the North and south poles in which the magnetic field of a magnet is strongest.
Cooling a magnet will not cause a magnet to lose its magnetism but instead the magnetism will increase because the molecules within the magnet will move slower because they have less kinetic energy so there is less vibration within the magnet's molecules thereby resulting in more concentrated magnetic field that strengthens the magnet.
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Why would growing replacement skin from stem cells be valuable?
Answer:
Growing replacement skin from stem cells can be valuable for a number of reasons:
Explanation:
Treating burns: Stem cells can be used to grow replacement skin for patients with severe burns, which can reduce the risk of infection and scarring, and improve the healing process.
Healing wounds: Stem cells can be used to grow new skin to help heal chronic wounds such as those seen in diabetes and pressure sores.
Reconstructive surgery: Stem cells can be used to grow replacement skin for patients who have undergone reconstructive surgery, such as breast reconstruction after a mastectomy.
Genetic skin disorders: Stem cells can be used to grow replacement skin for patients with genetic skin disorders such as epidermolysis bullosa, a genetic disorder that causes skin to be extremely fragile and prone to blisters.
Cosmetics: Stem cells can be used in cosmetics industry to develop new products that can help to improve skin conditions such as aging and wrinkles.
Cost-effective: Using stem cells to grow replacement skin can be more cost-effective than traditional methods such as skin grafts, which require a significant amount of healthy skin to be taken from another part of the body.
Ethical concerns: Using stem cells to grow replacement skin eliminates the need to use animal testing or animal-derived materials in the production of skin products.
Overall, growing replacement skin from stem cells offers a versatile and efficient way to help patients with various skin conditions, and can improve the quality of life for many people.
Two types of membrane protein l
Answer:
integral and peripheral.
Explanation:
What is the difference between a dominant color allele and a recessive color allele found in pea plants?
Responses
Both alleles code for proteins that produce pigments. The pigments produced by a recessive color allele are white.
A recessive color allele codes for proteins that produce pigments. A dominant allele does not code for those proteins.
A dominant color allele codes for proteins that are involved in the production of pigments. A recessive color allele does not produce a working version of these proteins.
Both alleles cannot code for any proteins. Purple is the natural color of plant petals when no other factors are involved.
Answer:
A dominant color allele codes for proteins that are involved in the production of pigments. A recessive color allele does not produce a working version of these proteins.
Explanation:
A dominant color allele produces a specific pigment when present, while a recessive color allele does not produce that specific pigment when present.
The dominant allele masks the effect of the recessive allele, meaning that if a plant has one dominant allele and one recessive allele, the dominant allele will determine the color of the plant. However, if a plant has two recessive alleles, the plant will have the color determined by the recessive allele.
In pea plants, the dominant allele codes for purple pigments and the recessive allele codes for white pigments. So when a pea plant has one dominant allele and one recessive allele it will appear purple, and when it has two recessive allele it will appear white.
The age of material on a tectonic plate depends in part on what type of crust it is composed of. 1)_____ tends to be younger because it is continually produced at the
2)______ and then recycled. On the other hand, 3)_______ tends to be older because it can often remain intact for longer periods.
Fill In Blanks
1) Ocean floor
Oceanic Crust
Continental Crust
2) Deep sea Vents
Hot spots
Mid oceanic ridges
3) Continental crust
Oceanic Crust
Ocean Floor
SOMEONE HELP PLEASE AMD FAST!
Continental crust, Oceanic Crust, Lithospheric Plate The age of material on a tectonic plate depends in part on what type of crust it is composed .
What is Oceanic Crust?
Oceanic crust is the outermost layer of the Earth's lithosphere which forms the ocean floor. It is composed of mafic igneous rocks such as basalt and gabbro. It is typically 5 to 10 km thick and is the youngest layer of the Earth's lithosphere.
Oceanic crust is formed by seafloor spreading at mid-ocean ridges, which occur when two tectonic plates are pulling apart from each other. This causes molten material from the mantle to rise up and cool, forming new oceanic crust. The newly formed crust then moves away from the mid-ocean ridge in both directions, forming a diverging boundary. As it moves away from the ridge, the oceanic crust cools and becomes denser and denser.
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The pictures have the questions
What is the density of an object that has a volume of 6 and a mass of 30
(06) A grey rat, heterozygous for both traits is mated with a black rat heterozygous for pigmentation. What are the offspring? Give the phenotypes after drawing the punnet square
Answer:
If a gray rat heterozygote (Gg) and a black rat heterozygote (Bb) were to breed, the following phenotypic and genotypic ratios would result:
ExplanatioN
Gg (Heterozygous gray rat) X Bb (Heterozygous black rat)
B b
G GB Gb
g gB gb
therefore, In offsprings, 50 % rats will be gray and 50 % rats will be black. So, both the ratios (phenotypic and genotypic) would be 50:50
If a solution is Hypotonic, does water enter or leave the Cell?
Thanks.
Answer:
When a solution is hypotonic,water will enter the cell and the cell swells up.
Show the punnet square for Ss x Ss
Answer:
A Punnett square is a tool used to predict the possible outcomes of a genetic cross, it can be represented as a grid with the alleles (genes) of one parent along the top and the alleles of the other parent along the side.
When the cross is between two homozygous dominant individuals (Ss x Ss) the Punnett square would look like this:
Explanation:
| S | s
---|---|---
S | Ss | Ss
s | Ss | ss
Each box in the square represents a possible combination of alleles that could result from the cross, and the resulting genotype of the offspring. In this case, all of the possible combinations are SS, which is homozygous dominant. This means that all of the offspring will have the dominant allele (S) and will have the same phenotype (expression of the trait) as the parents.
Is osmosis a type of active transport or a type of diffusion?
Osmosis is a type of diffusion.
What is osmosis?Osmosis is the movement of water molecules from the region of high water concentration to the region of low water concentration through a semi-permeable membrane.
In other words, osmosis is the movement of water molecules from the region of higher water potential to the region of lower water potential through a selectively permeable membrane.
Diffusion generally involves the movement of molecules from the region of higher concentrations to the region of lower concentration. Active transport, on the other hand, are biological transports that require energy.
Thus, osmosis can be viewed as a kind of diffusion involving the semi-permeable membrane, and not a kind of active transport because it does not require energy.
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there are 200 rabbits plants per square kilometer in a certain area of forest. to which population characteristic does this information refer?
This information refers to the population density of the rabbits in the certain area of forest.
What is population?
Population refers to the total number of people living in a specific area. Population size and density vary from place to place, depending on a variety of factors including climate, geography, political and economic conditions, and history. In general, population density is higher in areas with more resources, as people are drawn to areas where there are more employment and educational opportunities, as well as a higher standard of living. Population growth can also be affected by migration, both within a country and between countries. Population growth can be a positive or negative force, depending on the circumstances, and can have serious implications for a country's economic, social, and environmental stability.
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After incubation, 86 colonies were counted on the 10-7 dilution plate. Only 0.1 ml was spread on the plate. What was the count in the original undiluted culture?
After incubation, 86 colonies were counted on the 10-7 dilution plate. Only 0.1 ml was spread on the plate. The count in the original undiluted culture was 86,000,000
How do you calculate the original undiluted culture?An undiluted culture refers to a microbial culture that has not been diluted with a solvent or diluent. An original undiluted culture refers to the original microbial culture, prior to any dilution.
In other words, it is the bacterial or fungal culture taken directly from the source without any additional liquid being added. The original undiluted culture is used as a starting point to create dilutions for plating and counting colonies
To determine the count in the original undiluted culture, you would need to multiply the number of colonies on the 10-7 dilution plate (86) by the dilution factor. In this case, the dilution factor is 10^7, so the original count in the undiluted culture would be:
86 x 10^7 = 86,000,000
So, the original culture has 86,000,000 colonies
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You are a clinical scientist in a hospital lab who has been given two clinical isolates from a patient. One of the isolates was initially identified as Staphylococcus aureus and the other one as Staphylococcus epidermidis. Which of the following media would you choose to confirm whether the initial identification is correct?
Answer:
Mannitol Salt Agar (MSA)
Explanation:
To confirm the initial identification of the two isolates, you would choose an identification medium that contains a combination of nutrients that are specific to Staphylococcus aureus and Staphylococcus epidermidis. The most common medium used for this purpose is Mannitol Salt Agar (MSA). MSA contains a 7.5% sodium chloride concentration and mannitol, which is a sugar that only Staphylococcus aureus can ferment. The presence of a yellowish-green color indicates the presence of Staphylococcus aureus, while the presence of a colorless halo indicates the presence of Staphylococcus epidermidis.
Many physicians initially rejected the notion that clinical laboratories could have a positive impact on the practice of
medicine because_____
They were taught in medical school to assume complete accountability for their patient's diagnosis and treatment
they didn't reject the notion; in fact doctors universally praised the development of clinical laboratories
they didn't trust new technology
they would earn far less money in their practice as a result
Many physicians initially rejected the notion that clinical laboratories could have a positive impact on the practice of medicine because They were taught in medical school to assume complete accountability for their patient's diagnosis and treatment.
What is Medical school?A medical school is a tertiary educational facility, or a division thereof, that teaches medicine and confers doctoral degrees on its graduates.
The Bachelor of Medicine, Bachelor of Surgery (MBBS, MBChB, MBBCh, BMBS), Master of Medicine (MM, MMed), Doctor of Medicine (MD), and Doctor of Osteopathic Medicine are some examples of such medical degrees (DO).
Additionally, medical schools have the ability to run teaching hospitals and conduct medical research. The standards, framework, teaching methods, and type of medical programs offered at medical schools differ significantly around the world.
Therefore, Many physicians initially rejected the notion that clinical laboratories could have a positive impact on the practice of medicine because They were taught in medical school to assume complete accountability for their patient's diagnosis and treatment.
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Non-zero acceleration requires ___ over a___
Answer:
Non-zero acceleration requires a change in velocity over a period of time.
Explanation:
A measure of how rapidly an object's velocity changes is called acceleration. Since velocity is a vector quantity, it contains both a speed component and a direction component. When an object's velocity varies, either its speed, direction, or both are changing, or both are changing. The definition of acceleration is a change in velocity over time. A moving item is considered to have zero acceleration if it is travelling at a constant velocity, which indicates that both its speed and direction are remaining constant. In other words, a change in velocity over time is necessary for non-zero acceleration.
jack wanted to which brand of car wax was most effective on his car paint. he tested four brands of wax
If jack wanted to which brand of car wax was most effective on his car paint. he tested four brands of wax. The experimental group is: Most expensive wax, store brand of wax and infomercial brand of wax.
What is experimental group?An experimental group can be defined as the type of group that tend to received what a researcher what to test or carryout out an a test on. Most researcher tend to make use of this group to carryout study on what they intend to study before reaching or drawing conclusion about the experiment conducted.
Based on the scenario the experimental group have to do with the following:
Wax that was the store brandWax that was the most expensive Wax that ordered from an infomercialTherefore we can conclude that the experimental group is most expensive wax, store brand of wax and infomercial brand of wax.
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The complete question is:
What is the experimental group? Jack wanted to test which brand of car wax he should use on his car to make it the shiniest. He tested three brands of wax. He cleaned the hood of his car and removed the old wax. He measured four equal sections on the hood of the car. One wax was the store brand, one was the most expensive and the last one was a type of wax that he ordered from an infomercial. The last section did not get any wax. An equal amount of wax, the same type of rag, and equal buffing were used. After he was done, Jack developed a rating scale for amount of shine, from dull to very shiny on each of the 4 squares.
Help please i’m so confused
Answer:
The correct answer is C
Explanation:
The model shows a factory creating excess levels of C*O_{2}. This would support Scientist A's claim that the factory is responsible for the excess C*O_{2} in the atmosphere. The model illustrates that the C*O_{2} is not lost throughout the system, but is released directly into the atmosphere, and not cycled back into the ecosystem. This would indicate that the factory is the source of the excess C*O_{2} in the atmosphere.
some cells in the bladder are bi-nucleated cells what process happened? What process did not happen?
Some cells in the bladder are bi-nucleated cells because occurs DNA replication without cell division.
What are bi-nucleated cells?Biological cells that contain two or more nuclei are called bi-nucleated cells and they are generated when the cell duplicates its DNA content during the synthesis S phase of the interphase but they do not undergo cell division, i.e., mitotic cell division cycles to reduce the genetic material.
Therefore, with this data, we can see that bi-nucleated cells are generated by the duplication of the DNA without the subsequent cycle of mitotic cell division.
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Everything filled in please
The monomers, examples, location and linkage of the biomolecules can be found below;
Protein - amino acid, glutamine, cell, peptide bondCarbohydrate - monosaccharide, glucose, cell, glycosidic bondLipid - fatty acid, steroids, cell, ester bondNucleic acid - nucleotide, DNA, nucleus, N- glycosidic linkageWhat are biomolecules?Biomolecules are molecules, such as amino acids, sugars, nucleic acids, proteins, polysaccharides, DNA, and RNA, that occur naturally in living organisms.
Nucleic acids are any acidic, chainlike biological macromolecule consisting of multiple repeat units of phosphoric acid, sugar and purine and pyrimidine bases.
Proteins are a complex naturally-produced molecules composed of one or more long chains of amino acids, in which the amino acid groups are held together by peptide bonds.
A glycosidic bond or glycosidic linkage is a type of covalent bond that joins a carbohydrate (sugar) molecule to another group, which may or may not be another carbohydrate.
Lipids are any of a group of organic compounds including the fats, oils, waxes, sterols, and triglycerides.
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11. A bacterium produces offspring that are genetically identical, meaning they reproduce by _ reproduction. Camel offspring inherit some genetic information from each parent, meaning humans reproduce by.
_ reproduction.
12. What is happening during the G2 phase of the cell cycle?
13. Refer to the figure below. Which of the following correctly indicates the order in which these events occur?
11) A bacterium produces offspring that are genetically identical, meaning they reproduce by asexual reproduction. Camel offspring inherit some genetic information from each parent, meaning humans reproduce by sexual reproduction. (Option B)
12) During the G2 phase of the cell cycle, the DNA replicates (Option A)
13) The correct order in which the (Cell Division) event occurs is CBAD (Option B).
What is Cell Division?Cell division is the process through which a parent cell splits into two daughter cells. Cell division is normally part of a wider cell cycle during which the cell develops and duplicates its chromosomes before dividing.
Cell division occurs in two stages: mitosis and meiosis. When most people say "cell division," they're referring to mitosis, the process of creating new body cells. Meiosis is the form of cell division that generates egg and sperm cells. Mitosis is a necessary step for life.
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Graded Assignment
Honors Project 2: Resolution Ranking
Review the Debate Resolutions Interest Inventory. Write a "1" next to the resolution you are most interested in
debating. Rank the others as second, third, and fourth choices. Then submit the assignment to your teacher by
the deadline.
(5 points)
1. Rank the resolutions below from 1 to 4 indicating your first, second, third, and fourth choice.
Answer:
Resolution
Rank
Water usage
should be
regulated to ensure
a continuing supply
for major urban
centers.
Hydrogen fuel for
vehicles can solve
global energy
problems.
Governmental
funding should
support important
programs on earth
rather than space
exploration.
Government
polic should
encourage the
use of biofuels.
Score
Answer:
1 Hydrogen fuel for vehicles can solve global energy problems.
2 Governmental funding should support important programs on earth rather than space exploration.
Water usage should be regulated to ensure a continuing supply for major urban centers.
Government policy should encourage the use of biofuels.
Can you do this exercise for me, it is really urgent:
SITUATION
Stephen drinks alcohol every day. He has an addiction to alcohol but doesn't realize it. Although his friend Mehdi has pointed it out to him several times, Stephen says he can stop whenever he wants. Recently, Stephen had an accident at work due to a careless mistake after drinking. He decides to react and to go and see an addictologist.
Alcohol abuse is the issue. Because he wouldn't admit that there was a problem, it is becoming worse.
How does alcohol affect the body?It impairs memory formation and impulse control, resulting in "blackouts." Alcohol might make you feel weak, numb, and momentarily paralyzed. The temporal lobes of the mind may shrink after prolonged use. Drinking excessively might develop a habit with potentially harmful withdrawal symptoms.
Alcohol stays in the body for how long?Alcohol can be detected in the blood for six to eight hours, on the breathing for 12 to twenty-four hours, in the urine for twelve to twenty-four hours, in the saliva for twelve to twenty-four hours, and in the hair for up to ninety days. Alcohol has a half-life of 4-5 hours.
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North facing slops are found where? How would you know?
Answer:
North-facing slopes are found in the northern hemisphere. They are characterized by being on the side of a hill or mountain that faces towards the north. These slopes are typically shaded and receive less sunlight than south-facing slopes, which are found on the opposite side of the hill or mountain.
To determine which way a slope is facing, you can use a compass or look for certain indicators such as the presence of moss or lichen, which typically grows on the north side of trees and rocks. Other indicators include the presence of certain types of vegetation, such as shade-loving plants, which are often found on north-facing slopes. The presence of snow or ice can also be an indicator, as north-facing slopes tend to be colder and receive less sunlight, which can cause snow and ice to linger longer.
Another way to know if a slope is North facing is by observing the direction of the sun. North facing slopes will be shaded during the morning hours, while south facing slopes will be illuminated.
In summary, the location, indicators from nature, and the direction of the sun can be used to determine if a slope is North facing.
Answer:
North-facing slopes in the northern hemisphere receive less direct sun exposure, hence they are often colder and more humid, whereas south-facing slopes are warmer and drier. Using a compass is the simplest technique to determine your slope aspect. You may also use a compass app if you have a smartphone. Stand with your back to the hill and your phone/compass facing directly away from it. You may read directly from an app.
Explanation:
the stages of mitosis and the process of cytokinesis draw and label a cell in each stage
These phases are prophase, prometaphase, and metaphase, Cytokinesis is the final physical cell division and is considered the sixth phase of mitosis.
What are the stages of mitosis and cytokinesis?Cytokinesis begins in the phase of cell division. and ends in telophase, extending completion as the next interphase begins. The first obvious change of cytokinesis in an animal cell is the sudden aspect of a pucker, or cleavage furrow, on the cell surface.
Mitosis and each of the two meiotic divisions result in two unrelated nuclei contained within a single cell. Cytokinesis performs a crucial process to separate the cell in half and ensure that one nucleus ends up in each daughter cell.
So we can conclude that Cytokinesis, the division of the cytoplasm to form two new cells, overhangs with the final stages of mitosis.
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Docters and scientists do many kinds of research not all the techniques that are developed in the lab becomepart of the ordinary medical practice.
-What factors might slow or stop the introduction of this stem cell technology?-
Some factors that might slow or stop the introduction of this stem cell technology include:
embryonic stem cells can lead to the development of tumors.problems with the nervous system and inappropriate stem cell migration.implanted stem cell immune rejection.What is stem cell technology?Stem technology refers to a technique in medicine that employs the use of stem cells in medical treatment.
Stem cell treatment, commonly referred to as regenerative medicine, uses stem cells or their byproducts to encourage the repair response of sick, malfunctioning, or wounded tissue. It is the next step in the transplantation of organs, replacing donor organs—which are scarce—with cells.
Stem cells are the cells in the body that can become almost any type of cell in the body.
There are three main types of stem cells that are employed in stem cell therapy, namely;
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What are two basic differences between DNA and RNA?
RNA is usually single stranded, while DNA is usually double stranded.
RNA contains uracil, while DNA contains thymine.
RNA is usually double stranded, while DNA is usually single stranded.
RNA contains thymine, while DNA contains uracil.
RNA doesn’t contain cytosine, while DNA doesn’t contain adenine.
Reset Next
Answer:RNA is single-stranded while DNA is double-stranded.
RNA contains uracil while DNA contains thymine.
RNA has the sugar ribose while DNA has the sugar deoxyribose.
Explanation:RNA is single-stranded while DNA is double-stranded.
RNA contains uracil while DNA contains thymine.
RNA has the sugar ribose while DNA has the sugar deoxyribose.
In Palm Beach County the sugarcane farmers are burning fires to strip the plant to the stalk to make the sugar easier to harvest. This practice is changing the quality of air causing particulate pollution; meaning the air is filled with smoke, soot, and ash. This has led to adverse health effects including an increased risk of asthma. Why is it important that county officials monitor the quality of air in surrounding communities?
A. to provide topics for local governmental candidates to debate in a public forum
B. to determine ideal sites for new sugarcane farms when resources are depleted
C. to help county officials to determine what policies need to be put into place to protect residents
D.to determine how much money is needed to address any health concerns arising from the pollution
To help county officials to determine what policies need to be put into place to protect residents.
What is residents?
Residents are people who live in a certain place or area. They are permanent inhabitants who are either citizens or non-citizens of the place they live. Residents can be found in residential areas like cities, towns, villages, and other places. They often contribute to the overall character and culture of the place they live. They also influence the economic and social aspects of the area they live in. Residents usually take part in various activities and events in the community, such as shopping, dining, entertainment, and more. They often form strong relationships with one another and with the surrounding environment. Residents are important to the overall health of a community, as they contribute to its diversity, stability, and vibrancy.
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In the process of
Choose...
, DNA is used as a template for making another type of nucleic acid called
Choose...
. The process begins when the enzyme
Choose...
binds to a region called the
Choose...
.
In the process of transcription, DNA is used as a template for making another type of nucleic acid called RNA. The process begins when the enzyme RNA polymerase that binds to a region called the promoter sequence.
What is the cell process of genetic transcription?The cell process of gene transcription is a phenomenon for which a nucleic acid called RNA is created by means of one of a single-strand sequence of DNA, which is used as a template to generate a complementary RNA sequence that binds by complementarity pair basis rules. During transcription, an enzyme called RNA polymerase progressively adds nucleotides to the growing RNA chain, in a process that requires the binding with a DNA sequence called the promoter.
Therefore, with this data, we can see that the cell process of genetic transcription is based on the use of an RNA polymerase that initially binds to a DNA template strand.
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Having a hydrophilic and a hydrophobic allows phospholipids to form a when placed in a/an
solution. This bilayer is , meaning that it regulates the substances that pass through the membrane. A molecule’s
and determine its ability to move through the cell membrane.
The ability of the cell membrane to permit the passage of various substances is referred to as the cell's partial permeability.
What types of substance exist?The majority of the components are composed of pure substances. Only a few of these include diamond, gold, copper, oxygen, and chloride. Mixtures like water, salty crystals, baking powder, and others are examples of pure substances.
What is a natural substance?Biologically Active Ingredients: substances that are naturally occurring but nevertheless endanger enterprises' ability to act responsibly toward the environment. Examples include asbestos, mercury, arsenic, radon, pyrite, and pyrite. Most of these things are discovered while being created or constructed.
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