Allergies, respiratory issues, hypersensitive illnesses, and infectious diseases are examples of biological impacts that can be brought on by a range of pollutants and toxins.
How has climate change affected biological systems?Climate change has the potential to affect populations or species' geographic distributions by interfering with the compatibility of organisms with their local environment, limiting survival and reproduction, and reducing the ability to reproduce. While some species may benefit from climate change, others may become extinct.
Which biological ecosystem would you use as an example?The sea environment, the air environment, and the terrestrial environment are a few examples. Given that every living thing has a unique habitat, there are countless different biophysical settings.
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What are these panels used for?
A. To produce a fission reaction
• B.
To convert electricity into less usable energy
• C. To create electricity from solar energy
•
D. To transform energy from moving water
Answer: C. To create electricity from solar energy
Explanation:
What is an allegory and how is Animal Farm an allegory?
Allegory is the use of symbolic literary characters and their actions to convey truths or generalisations about human existence. It includes literary genres like fable and parable. A metaphor is, in general, figurative language. More specifically, it is a figure of speech in which a word or phrase that literally refers to one kind of thing or idea is substituted for another to imply similarity or analogy between the two. An example of an allegory is Aesop's Fables, while a metaphor is "the ship ploughs the seas."
An allegory is a type of story, poem, or picture that can be interpreted to reveal a hidden meaning, typically a moral or political one. An allegory often uses symbolism to portray the underlying meaning.
Animal Farm is an allegory that uses the story of a group of farm animals who rebel against their human farmer to tell a broader story about the Russian Revolution and the rise of Stalin's dictatorship. The characters in the novel, such as the pigs, the horses, and the dogs, represent different groups in Russian society and the events of the novel correspond to historical events. For example, the pig Napoleon represents Stalin, and the windmill that the animals build represents the Soviet Union's industrialization. The allegory in Animal Farm serves to criticize the Soviet Union and the way that power can corrupt those who hold it.
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How far apart are Y and L? Give your answer in map units. (Hint: Add the numbers of the two recombinant types, divide by the total number of offspring, and multiply by 100.)
The number of the two recombinant types is 200, divide by the total number of offspring is 1000, and multiply by 100, so the map unit is 20.
What are recombinant types?The heterozygous dominant species, in this case, is YyLl, where Y stands for the dominant trait over y and T stands for the dominant trait over t.
Recombinant species will exhibit features that are heterozygously expressed in both the dominant and recessive forms), and these traits are Yyll: 100 and yyLl: 100.
Therefore, The number of the two recombinant types is 200, divide by the total number of offspring is 1000, and multiply by 100, so the map unit is 20.
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Why multiple sclerosis is so called?
In a certain population, D is a dominant, wild-type allele of a gene encoding a protein important for cell division, and d is a recessive, loss- of-function allele of that gene. The allele frequencies for this gene in this popoulation are D = .7, d = .3 If mutation is the only force acting on this population from generation to generation, what do you predict will happen to allele frequencies over successive generations?
The frequency of the d allele will increase over successive generations.
The number of times the allele of interest is observed in a population is divided by the total number of copies of all the alleles at that particular genetic locus in the population to calculate the allele frequency. The frequency of alleles can be expressed as a decimal, a percentage, or a fraction.
The relative genotype frequencies depict the genetic variation distribution in a population. The percentage of all copies of a specific gene in a population that carry a specific allele is known as relative allele frequency. The mechanisms that cause changes in allele frequencies over time are natural selection, genetic drift, and gene flow. When one or more of these forces act in a population, the Hardy-Weinberg assumptions are violated, and evolution occurs.
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3. Is celery a monocot or a dicot? Explain how you know. Refer to Figures 11.5 and 11.6 in your book. Compare the location of the vascular bundles in the celery (See the photograph above) to the two figures. Total Magnification: epidermis phloem xylem vascular bundle parenchyma cell Figure 11.5: Corn (Zea mays) stem, cross section view at 40X. Corn is a monocot. Plant Diversity, Angiosperm Structures & Angiosperm Reproduction | Laboratory 11 Total Magnification: epidermis cortex phloem cambium _ vascular bundle xylem pith bluedoor, LLC Figure 11.6: Sunflower (Helianthus), cross section at 40X. Sunflowers are dicots. te: Keep the microscope at your lab table. Return your prepared slides to the box. 221 Laboratory 11 | Plant Diversity, Angiosperm Structures & Angiosperm Reproduction
The celery is dicot in nature.
What are the characteristics of dicots plants?The dicotyledons, also known as dicots, are one of the two groups into which all the flowering plants were formerly divided. There are around 200,000 species within this group.
Most common garden plants, shrubs and trees, and broad-leafed flowering plants such as magnolias, roses, geraniums, and hollyhocks are dicots.
Dicots get their names from having two cotyledons instead of one. Dicot flower parts come in multiples of 4 or 5. Count the petals and identify whether they are multiples of 4 or 5. Dicot leafs have veins that are scatter or “netted.
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100 POINTS!!! Can you fill in the blanks please? Meiosis and mitosis.
Table 1:
Interphase cells: 69.6%
Cytokinesis cells: 2
Cytokinesis number of chromosomes in each nucleus: 64
Interphase number of chromosomes in each nucleus: 46
Interphase number of homologous pairs in each nucleus: 23 pairs
Cytokinesis number of homologous pairs in each nucleus: 23 pairs
I tried my best and I hope this helps you!
In the Table 1:
Interphase cells: 69.6%
Cytokinesis cells: 2
Cytokinesis number of chromosomes in each nucleus: 64
Interphase number of chromosomes in each nucleus: 46
Interphase number of homologous pairs in each nucleus: 23 pairs
Cytokinesis number of homologous pairs in each nucleus: 23 pairs
What is cytokinesis?The physical process of cell division known as cytokinesis splits the parent cell's cytoplasm into two daughter cells. Cytokinesis begins during the anaphase phase of nuclear division and lasts until telophase.
Anaphase marks the start of cytokinesis, which concludes in telophase and is finished when the subsequent interphase starts. The abrupt emergence of a pucker, also known as a cleavage furrow, on the cell surface is the first audible sign of cytokinesis in an animal cell.
The physical process of cell division known as cytokinesis separates a parental cell's cytoplasm into two daughter cells. In animal cells, the two forms of nuclear division, meiosis and mitosis, also take place at the same time.
Therefore, Interphase cells: 69.6%
Cytokinesis cells: 2
Cytokinesis number of chromosomes in each nucleus: 64
Interphase number of chromosomes in each nucleus: 46
Interphase number of homologous pairs in each nucleus: 23 pairs
Cytokinesis number of homologous pairs in each nucleus: 23 pairs
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Where is the problem in Claire's digestion?
Because the intestine is responsible for absorbing the majority of the nutrients obtained from eating and drinking food stuff, Claire's digestion .
Large, water-insoluble food molecules must be broken down into smaller, water-soluble food molecules during digestion in order to be absorbed into the watery blood plasma. These tiny chemicals are absorbed through the small intestine and into the blood stream in some species. Based on how food is digested, digestion, a type of catabolism, is sometimes split into mechanical and chemical digestion processes. The physical breakdown of large meal items into smaller, more manageable parts is referred to as mechanical digestion.
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a student placed 20 tobacco seeds of the same species on moist paper towels in each of two petri dishes. dish a was wrapped completely in an opaque cover to exclude all light. dish b was not wrapped. the dishes were placed equidistant from a light source set to a cycle of 14 hours of light and 10 hours of dark. all other conditions were the same for both dishes. the dishes were examined after 7 days, and the opaque cover was permanently removed from dish a. both dishes were returned to the light and examined again at 14 days. the following data were obtained.
Your anwser is: Yellow-leaved seedlings were unable to convert light energy to chemical energy.
Merry Christmas!
The diagram snows the parts or a nower.
Stigma.
Style.
Ovary.
Ovule
Anther
Filament
What is the name of the part labeled 2 in the diagram?
A. Stamen
B. Uterus
C. Carpel
D. Petal
2
The part of the plant that is shown in image 2 is the petal. Option D
What is a flower?We know that a flower is the reproductive part of the plant. This is the part of the plant that contains the anther and the stigma of the plant. As such, looking at the plant, we can see that the part of the plant that can be take part in the process of pollination is the flower of the plant.
Given the image of the plant as we can see it, it is clear that the labelled part of the plant that we can see in the image that has been labelled 2 is the petal.
Hence, the flower could be said to be the reproductive part of the plant.
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All of the following are true of the lacrimal glands, except that they
a. produce most of the volume of tears.
b. are located in recesses in the frontal bones
c. produce mucus
d. produce lysozyme
e. produce watery secretions.
The lacrimal glands do all of the following, with the exception that they do not create lysozyme. The correct response is (d).
The aqueous layer of the tear film is produced by two pairs of exocrine glands known as lacrimal glands in the majority of terrestrial vertebrates and certain marine mammals. In humans, they are located in the lacrimal fossa of the orbit produced by the frontal bone, in the top lateral portion of each orbit. The medical word for inflammation of the lacrimal glands is dacryoadenitis. The lacrimal gland and lacrimal ducts work together to secrete tears. These canals connect to the lacrimal sac after these ducts transfer tears from the eye's surface. The tears from that sac are sent into the nose through the lacrimal duct. The gland is split into two sections by anatomists: the palpebral lobe and the orbital lobe. The palpebral section can be visible if the upper eyelid is everted. The smaller palpebral lobe is located along the inner surface of the eyelid, near to the eye. Fine interlobular ducts that connect the orbital and palpebral lobes of the gland are seen in the orbital lobe. Before the secreted fluid can reach the eye's surface, they combine to create three to five primary secretory ducts, joining five to seven ducts in the palpebral region.
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What do all snails have in common?
The common feature of all snails is a spiral-shaped shell that serves as protection from harm in any hazardous situation.
The common shell of a snail is a spiral that wraps around a spindle. When there is danger, snails retract their soft bodies within this shell. They are asymmetrical as a result, and this asymmetry is reflected throughout their bodies. The snail shell is consistently built in the same manner. They eat plants like mushrooms, berries, and lettuce as well as fresh leaves, stems, and bark. The external shell is formed from the secretion of the mantle.
Hence, the morphology of all snails remains the same.
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____ is how often the disease occurs
Epidemiology is the investigation of the frequency and causes of disease occurrence in various populations.
In other words, the incident rate is the proportion of total cases to total exposure of the population to illness. Three frequency measurements are used to describe the frequency of illnesses in a population: incidence, prevalence, and death rates. As we have seen since 2020, pandemics are likely to inflict significant disruption, disease, and poverty. A disease is said to be endemic when it spreads within a population at a typical or anticipated rate. After a disease is becoming more stable and controllable, a pandemic starts to transition into an endemic. A sick organism frequently displays symptoms or indicators that point to its aberrant condition.
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What are the riskiest times for a pregnant woman to be exposed to a teratogen and why?
Teratogens is dangerous. Because of fetus's numerous developing organs and systems, which increase it's sensitivity to teratogens' detrimental effects.
What are the Types of teratogens?Drugs: Both prescription and over-the-counter (OTC) drugs are frequently taken by pregnant women. Although not all drugs carry the same risks, it's crucial to be aware of those that are recognised teratogens.Infectons: Not every illness has the same effects on a developing foetus and pregnancy. The common cold and other milder diseases sometimes strike pregnant women without warning. However, some diseases have a greater chance of having an effect on a pregnancy.Physical agents : Fetuses may also be at risk from exposure to some necessary medical procedures, job dangers, or heat. Heat and radiation exposure are both regarded as physical teratogens.Environmental Toxins : A developing foetus may be at risk from toxic metals and chemicals. Environmental toxins include things like Mercury, Lead, Polychlorinated and Polybrominated Biphenyls, to name a few (PCBs).Maternal Health Conditions: Teratogenic hazards might arise from specific maternal health issues. Chronic medical disorders such uncontrolled diabetes, autoimmune illness, and maternal phenylketonuria can have an effect on a developing foetus (PKU).To learn more about Teratogen refer to:
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8. Understand what happens when cells are placed into hypertonic solutions (They______ solutions (They_____ or into hypotonic 9. What is turgor pressure in a plant cell? If a house plant is placed into a hypertonic environment (ie salt water) what will happen?
Answer:
8. When cells are placed into a hypertonic solution, water will tend to move out of the cells and into the surrounding solution. This can cause the cells to shrink, a phenomenon known as crenation. In contrast, if cells are placed into a hypotonic solution, water will tend to move into the cells, causing them to swell and potentially burst.
9. Turgor pressure is the pressure exerted by the contents of a cell against the cell wall. In plant cells, turgor pressure is important for maintaining the shape and rigidity of the plant. When a plant is placed in a hypertonic environment, the loss of water from the cells can reduce turgor pressure and cause the plant to wilt or droop. This can make the plant less able to support itself and may affect its ability to grow and function properly.
Select four goals that human service professionals try to provide for their clients _____.
The four goals that human service professionals try to provide for their clients are establish safety, provide stability, locate resources and refer to drug rehab.
Drug rehab is is care that can help you get back, keep, or ameliorate capacities that you need for diurnal life. These capacities may be physical, internal, and/ or cognitive( thinking and literacy). You may have lost them because of a complaint or injury, or as a side effect from a medical treatment.
Human service professionals estimate a customer's requirements, produce a treatment plan, and put the plan into action. Throughout the process, they give guests with emotional support. Working nearly with the customer, cre- ate a plan for services with safety to help the client to break these problems.
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Connections between habitat fragments are referred to as __________
The term "structural connectedness" describes the physical organisation of habitat as well as potential links between habitat fragment types throughout the landscape.
Structural connectedness describes how individual animals actually move around the landscape and the extent to which each landscape supports or restricts this mobility. Functional connectedness must guide efforts in landscape planning and management since it refers to how species use natural systems to travel through the landscape as opposed to how people perceive patterns of connection.
It is helpful to think of a functionally connected landscape as an assembly of habitat "islands" surrounded by "matrix," which are the outcome of habitat fragmentation (less preferred habitat). Anything can be considered a matrix, including suburban sprawl, clearcuts, and agricultural land. However, because different species have different levels of tolerance for less desirable environments, effective conservation planning and management initiatives must consider connectivity from the viewpoint of each target species.
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What does the plant start with and end with?
The plant will start from the seed germination and will end with the end of the life cycle which is known as the death of the plant.
Plants start as seeds buried in the ground. When the seed is watered and the sun warms it, the hard shell opens and roots begin to grow. As the plant grows, its stems break through the ground. Leaves then begin to grow from the stem. The main stages of the plant life cycle are seed germination, seedling formation, growth to mature plants, development and differentiation, pollination and fertilization, and fruit and seed formation. The plant will reach the end of its life cycle and dies.
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Check all the attributes that apply to microbial taxonomy: Check AII That Apply Can use characteristics such as morphology; pigmentation, presencelabsence of specific genes; evolutionary relatedness Brings order to wide diversity of microbial life forms Only used for microbes of pathogenic or industrial significance Includes the naming of taxonomic groups in agreement with published rules
The following are the correct answers to the given question:
can make use of morphology, pigmentation, the presence or absence of a certain gene, or an evolutionary relationship
Provides order to a diverse range of microbial life forms.
entails identifying taxonomic categories in accordance with stated guidelines
Taxonomy:-
Classification, nomenclature, and identification are all terms used to describe the science of classifying living things.
Based on mutual similarity, organisms are classified into taxa (s., taxon).
A new species cannot be recognized until it is published in the International Journal of Systematic and Evolutionary Microbiology.
In taxonomy, each organism has two names.
E. coli is an example (E.coli). Escherichia is a genus name and coli is a species name.
So, we can say that the correct options are :
can rely on morphology, coloration, the presence or lack of a certain gene, or an evolutionary relationship
Orders a wide variety of microbiological life types.
involves classifying taxonomic groups in accordance with established rules
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What impact did the structure of the legal system in the us have on modern procedures? choose all that apply.
Answer: O. The Bill of Rights guarantees each person civil liberties to this day.
O. It directly impacts all laws, legal proceedings, and kinds of punishment and sanctions today.
Explanation:
The above given statements are the impact which the structure of the legal system in US have on modern procedures. The ability to guarantee each individual civil liberties irrespective of tribe or religion is one of the fundamentals of the legal system in US. Also, its ability to issue out sanctions and punishment without fear or favour is another impact associated with it.
Can heart problems cause dementia?
Studies indicate that issues with the heart and blood vessels that provide blood to the brain may have a role in dementia development.
You could be more susceptible to developing blood vessel issues in your brain after a heart attack. Dementia risk may be impacted by the brain damage brought on by a stroke or ministroke (transient ischemic attack). abnormal blood vessel aging (atherosclerosis).
After Alzheimer's disease, vascular dementia is the most frequent type of dementia. It results from the damage caused to brain tissue by reduced blood flow. A blood clot might totally block blood flow to brain tissue or only partially obstruct it.
Memory, cognitive, and behavioral abnormalities brought on by ailments that impact the blood arteries in the brain are referred to as vascular dementia. Size, location, and number of vascular alterations can have a major impact on cognition and brain function.
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brca1 activity is regulated by phosphorylation by different kinases. in normal cells, a kinase called atm is activated in response to dna damage. would phosphorylation of brca1 by atm activate or inhibit brca1 function?
Additionally, there is proof that BRCA1 participates in the S-phase checkpoint activated by halted replication forks, which can be brought on by UV or hydroxyurea treatment of cells (HU).
What causes mutations in the BRCA1 gene?To fix DNA breaks, the BRCA1 protein interacts with a variety of other proteins in the nuclei of several types of normal cells. These breaks can be brought on by chromosomes exchanging genetic material prior to cell division, natural radiation, medicinal radiation, or other environmental exposures.
What does the gene for ATM do?The ATM gene gives instructions for creating a protein that is largely found in the nucleus of cells, where it aids in regulating how quickly cells divide and expand.
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The Everglades are wetlands in southern Florida. In 1948, federal and local governments joined
together to divert water from the Everglades in order to create dry land for humans to live on. The
change in water flow affected the ecosystem negatively. In 2000, the Comprehensive Everglades
Restoration Plan was initiated. The goal of this legislation is to return the water flow to its historical
path. Which of the following was necessary for the Comprehensive Everglades Restoration Plan to
be enacted?
a. They had to ask the public for monetary donations for the funding of the project.
b. They had to survey the public for their opinions.
c. They had to monitor the health of the system for years and collect data.
d. They had to collect samples of all native plants.
The Everglades are wetlands in southern Florida. the ecosystem negatively affected by the change in water flow. The following was necessary for the Comprehensive Everglades Restoration Plan to be enacted is that they had to survey the public for their opinions.
The Ecosystem is the composition of all biotic and abiotic components and place where they interact with each other.
The basic types of ecosystem are as follows :
Forest Ecosystem.Grassland Ecosystem.Tundra Ecosystem.Desert Ecosystem.Everglades:Everglades are the tropical wetland found in southlands of USA i.e. in state of Florida. Everglades consists of the following major trees in its arms.
Bromeliads and Grasses.Cacti and Succulents.Lichens.Marine Plants / Algae.Orchids.WildflowersTo know more about Ecosystem visit
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True or False diffusion takes place against concentartion gradient?
How do cells and viruses differ in structure?
Double-stranded DNA and several single-stranded RNA copies make up the structure of cells. However, viruses can also contain single, double, or single-stranded RNA in addition to double-stranded or single-stranded DNA.
What distinguishes viruses from cellular organisms?Viruses are wholly parasitic since they lack ribosomes, mitochondria, or any other cell-like organelles. They are genetic parasites because they are unable to multiply without the metabolic activities of the host cell.
What features distinguish the architecture of various viruses?The kind and size of the nucleic acid, the size and form of the capsid, and whether or not the nucleocapsid is encased in a lipid envelope are the three structural factors that are used to further categorize viruses into families and genera (the capsid enclosed nucleic acid).
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What is the diameter of a capillary tube in which mercury?
The diameter of a capillary tube is 2.5135m
What is capillary tube?Capillary tubes are those with very small diameters (narrow cylindrical tubes). When these small tubes are immersed in a liquid, the liquid in the capillary either rises (or lowers) relative to the surrounding liquid level. This phenomenon is known as capillary action, and such tubes are known as capillary tubes.
Rise in capillary is given by
h = [tex]\frac{2\times \sigma \times cos\theta}{\rho \times r\times g}[/tex]
σ = surface tension
ρ = density of liquid
r = inner radius
h = height
θ = contact angle made by the liquid meniscus with the capillary’s surface.
Given,
h = 1.21 cm
σ = 540 × 10 N/m
θ = 140°
ρ = 13.6 × 10³ Km
Substituting the value in equation,
h = [tex]\frac{2\times \sigma \times cos\theta}{\rho \times r\times g}[/tex]
r = [tex]\frac{2\times 540\times10\times cos140}{13.6\times10^3\times1.21\times10^-^2\times10}[/tex]
r = 50.27 × 10⁻¹m
d = 2.5135m
The diameter of a capillary tube is 2.5135 m.
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What are the two types of
fermentation?
A. alcoholic fermentation and lactic acid fermentation
B. ethanol fermentation and glycolic fermentation
C. acetic acid fermentation and glycolic fermentation
D. acetic acid fermentation and lactic acid fermentation
Answer:
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the process that form food in the prescene of oxygen is
Answer: cellular respiration
Explanation:
It takes in oxygen and converts it into food :) totally!
Is chloroplast present in virus?
The chloroplast is not present in virus as the virus is considered an exception to the cell theory because the virus contains genetic material but no organelles.
What are the evidences of occurrence of viruses?The earliest evidence for the occurrence of viruses was the discovery of an infectious agent in the sap of a tobacco plant. Experiments were set with different filters from which bacteria could pass but viruses being even smaller than bacteria could not pass.
Viruses were difficult to study because they are very small and couldn't be seen even under a microscope.Wendell Stanley made his studies on the tobacco mosaic virus (TMV).
Therefore, The chloroplast is not present in virus as the virus is considered an exception to the cell theory because the virus contains genetic material but no organelles.
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What are the ethical issues of genetic modification?
Use of animals for research, farmers are at loss and biopiracy are the ethical issues of genetic modification.
Genetic modification is a technique that involves transferring a piece of DNA from one organism to another in order to change the characteristics of a plant, animal, or microorganism. This is accomplished by removing the desired genes from one organism's DNA and inserting them into the DNA of the other.
Many GMO crops are used to produce ingredients consumed by Americans, such as cornflour, corn syrup, corn oil, soybean oil, canola oil, and granulated sugar. GMO potatoes, summer squash, apples, papayas, and pink pineapples are among the fresh fruits and vegetables available.
Genetically modified (GM) crops are those that have been engineered to introduce a new trait into the species. Resistance to specific pests, diseases, or environmental conditions, as well as resistance to chemical treatments, are common goals of GM crops (e.g. resistance to a herbicide).
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