In studies where blood pressure and heart rate were also measured, the effects of adrenaline and noradrenaline on urine flow and composition were examined.
The results were presented by Holgate and O'Connor [1958]. Three trained mules named "Floss," "Skewbald," and "Black Sue" were employed in the tests, which were also utilized in those described by O'Connor [1958 a].
In previous publications [ Holgate and O'Connor, 1958 and O'Connor, 1958 a], the operational preparations of the animals, specifics of the processes, and analytical methodologies have all been discussed.
The animal was catheterized and the dose of urea, water, or 9% sodium chloride was administered via stomach tube on the occasion of each individual experiment on the effects of adrenaline or noradrenaline.
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Which statement about genetically modified organisms is correct?
O Genes of bacteria can be modified; genes of plants and animals cannot.
O Genes of plants, animals, and bacteria can all be modified.
O Genes of plants can be modified; genes of animals and bacteria cannot.
O Genes of plants, animals, and bacteria cannot be modified.
Answer:
O Genes of plants, animals, and bacteria can all be modified.
Explanation:
Answer: Genes of plants, animals, and bacteria can all be modified. is the correct answer
design a controlled experiment to determine whether earthworms change the forest ecosystem. identify the environmental factor you will measure, state the specific hypothesis you will test, and design a procedure for collecting data accurately.
Hypothesis for a controlled experiment to determine whether earthworms change the forest ecosystem, The soil's PH will drastically change after the worms consume the leaf litter in a closed container filled with soil.
A number of plots of deciduous forest land would be the subject of an investigation in a controlled experiment to ascertain the effects of the new invasive worm. To make it easier to create artificial ecosystems in a lab, each plot should have boundaries that are limited. There ought to be three main groups: one without any worms, one with only native worms, and one with worms from both native and exotic species. similar circumstances ought to be applied to every individual plot: the same number of trees, the same amount of initial leaf litter, and the same amount of precipitation. The mass of the leaf litter should be taken at the conclusion of the experiment and compared to the initial mass. The plot with the exotic worms is anticipated to have the least amount of leaf litter compared to the other plots. The premise is: The amount of leaf litter that remains at the end of a season in a plot with only the native worm species will be significantly less if an exotic worm species is introduced into a deciduous forest ecosystem. To guarantee accurate results, multiple trials should be carried out.
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if gnrh was removed from the system, what do you predict would happen to the levels of estrogen being released into the bloodstream?
If the gonadotropin releasing hormone was absent from the body, the estrogen would completely stop being released.
Any trauma or damage to the hypothalamus can also result in a loss of gonadotrophin-releasing hormone secretion, which will halt the normal production of follicle stimulating hormone and luteinizing hormone. This will result in the loss of menstrual cycles (amenorrhea) in women, loss of sperm production in men, and loss of hormone production from the testes and ovaries.
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Which event occurs once in meiosis?
Meiosis, like mitosis, comprises separate phases known as prophase, metaphase, anaphase, and telophase. However, during meiosis, each of these phases occurs twice:
once during the first round of division, known as meiosis I, and again during the second round of division, known as meiosis II.
One cell divides twice during meiosis to create four daughter cells. These four daughter cells are haploid, meaning they have half the amount of chromosomes as the parent cell. (eggs in females and sperm in males).
During meiosis, homologous chromosomes are paired, resulting in gene recombination.
Non-sister chromatids exchange genetic material, resulting in novel allele combinations.
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disorders typically appear in childhood and are traced to genetic differences, atypical brain development, or prenatal exposure to substances that adversely affect development
The most prevalent mental illnesses in children include depression, ADHD, anxiety issues, and behavior issues.
Learning and developmental disorders, autism, and risk factors including substance abuse and self-harm are among the other ailments and issues that have an impact on children's learning, behavior, and emotions.
The following five ailments are the only ones covered in this chapter: autism, conduct disorder, childhood anxiety disorders, and attention-deficit hyperactivity disorder (ADHD) (intellectual developmental disorder).
Your chance of acquiring a mental disorder may be impacted by a number of variables, including:
a blood relative, such as a parent or brother, has a history of mental illness.challenges in life that are stressful, such having money issues, losing a loved one, or being divorced.a persistent (chronic) illness, as diabetes.Learn more about to childhood visit here;
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Scientists have been able to produce mutations in plants by irradiating their seeds with gamma rays. The result of one of the mutations was a plant that could not produce flowers. Because of this lack of flowers, the plant would not be able to.
The result of one of the mutations was a plant that could not produce flowers. Because of this lack of flowers, the plant would not be able to produce seeds.
The reproductive structures of angiosperms, i.e., the organs that create seeds, are the flowers. plants with flowers. In addition to accessory organs, flowers also have male and female reproductive organs known as stamens and pistils. In flowering plants, fertilization takes place during the pollination process, in which a pollen grain's sperm cell fuses with a plant ovule's egg cell to create the plant embryo in the seed. In conclusion, the plant would not be able to produce seeds because it lacks blossoms.
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a single gene controls flower color in peas. the purple flower allele is dominant to the white flower allele. if you cross a heterozygous purple-flowered plant with a white-flowered plant, the resulting offspring will have a phenotypic ratio of:
The phenotypic ratio of a heterozygous purple-flowered plant crossing with a white-flowered plant will be 75% purple: 25% white because the purple flower allele is dominant over the white flower allele.
A dominant allele determines the color of white blooms. A recessive gene determines whether blossoms appear purple. Alleles that are dominant are represented by capital letters, and alleles that are recessive are represented by lowercase variations of the same letters. Purple flower color predominates over white blossom color in the pea plant. Self-pollinating plants are those that cross pure purple flowering plants with white flowering plants.
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Place the following events in order starting with the vibration of the oval window and ending with the depolarization of hair cells.
a. Basilar membrane moves up and down b. Potassium ions enter hair cell causing depolarization c. Inner hair cells are pushed against the tectorial membrane d. Oval window vibrates e. Pressure wave travels through the perilymph of the scala vestibuli f. Stereocilia bend and tip-link proteins open potassium channels
Events in order starting with the vibration of the oval window and ending with the depolarization of hair cells are.
d. Oval window vibrates
e. Pressure wave travels through the perilymph of the Scala vestibuli
a. Basilar membrane moves up and down
c. Inner hair cells are pushed against the tectorial membrane
f. Stereocilia bend and tip-link proteins open potassium channels
b. Potassium ions enter hair cell causing depolarization
In general mechanical vibrations in the stapes at the basal plate of oval window creates the pressure and waves in the perilymph of the Scala vestibuli of the cochlea.
Thus ,these waves are responsible in moving around the tip of the cochlea through the helicotrema at the place of scala tympani and deplete when they hit window.
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What are the 3 main purposes of meiosis?
meiosis produces haploid gametes, it introduces genetic variation and it repairs genetic defects. These are the three main purposes of meiosis.
Meiosis is also called the reduction division. As the name suggests it will reduce the number to half of the parental chromosome number. During meiosis crossing over of chromosome fragments occurs, this is called recombination. This process occurs during prophase 1 of meiosis. During this process chromosomal fragments of homologous chromosomes are exchanged. Through recombination new genetic variation is introduced into an organism. Recombination also replaces defective fragments with healthy chromosomal fragments thereby it can also eliminate genetic defects.
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why is it important to monitor environmental parameters when making policy decisions?
The fundamental goal of environmental monitoring is to control and reduce the environmental impact of an organization's operations.
Either to guarantee adherence to laws and regulations, or to reduce the likelihood of negative effects on the environment and safeguard public health.
What aspects of the environment need to be tracked?Businesses can discover and analyze environmental conditions and evaluate their impact on the environment thanks to environmental monitoring of water, air, and biodiversity. Life on Earth depends on clean air, water, reducing noise pollution, and biomonitoring.
Records generated by monitoring the environment will serve as a baseline for the circumstances in which collections are housed now. They can be applied to record daily, seasonal, and humidity ranges, or they can be used to locate places with inadequate climate management.
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how does the ribosome know what amino acid to to add next when building a polypeptide?
The mRNA nucleotide sequence is translated into an amino acid sequence using the tRNAs as adaptors.
A nucleotide is the primary constructing block of nucleic acids (RNA and DNA). A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate organization and a nitrogen-containing base. The bases in DNA include adenine, cytosine, guanine, and thymine.
A nucleotide is fashioned from a carbohydrate residue linked to a heterocyclic base with the aid of a ß-D-glycosidic bond and to a phosphate institution at C-5'.
Nucleotides have a vital role within the physiology of organisms as constructing blocks of nucleic acids, storage of chemical energy, companies of activated metabolites for biosynthesis, structural moieties of coenzymes, and metabolic regulators.
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sam injured the articular cartilage of his knee doing damage to his synovial membrane. what effect will the damage to the synovial membrane have on the cartilage in sam's knee?
sam injured the articular cartilage of his knee, doing damage to his synovial membrane. Sam will recover, but with a limp caused by biomechanical deficiencies.
When the ends of two or more bones come together, a joint called articular cartilage is formed. For instance, the tibia (shinbone), femur (thighbone), and patella (kneecap) all connect at the knee. Articular cartilage injuries in joints are common, especially in physically active individuals. Although this form of injury most frequently occurs to the knee, it can also happen to the hip, elbow, shoulder, or ankle. Despite the fact that articular cartilage injuries can be painful and make it difficult to go about your daily activities, there are several therapies available to both reduce uncomfortable symptoms and repair and replace damaged articular cartilage.
The complete question is:
sam injured the articular cartilage of his knee doing damage to his synovial membrane. what effect will the damage to the synovial membrane have on the cartilage in sam's knee?
a) Over a period of time, the cartilages would eventually repair themselves and Sam can expect a full recovery.
b) Sam will recover but with a limp caused by biomechanical deficiencies.
c) The cartilages would no longer receive nutrients and waste products would accumulate causing the cartilage to degenerate.
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there are 80 organisms in a population. in a two allele, dominant-recessive gene pair, there are 20 dominant alleles within the population. what is the gene frequency of the recessive allele? ( 1 pt)
It is calculated by dividing the number of gene copies by the number of times the allele occurs in the population. All the copies of every gene in a population make up the gene pool of that population.
What gene frequency of the recessive allele?An allele's or gene's relative frequency at a certain locus in a population is known as its allele frequency, which is expressed as a fraction or percentage. With regard to the population as a whole or the sample size, it is specifically the percentage of all chromosomes that have that allele.
It is exactly the proportion of all chromosomes that has that allele, with relation to the population as a whole or the sample size.
Therefore, take the square root of q2 to get q, or the frequency of the recessive allele in the population, which is 0.632 (0.632 × 0.632 = 0.4). So, q = 0.63. P must be 1–0.63 = 0.37 since p + q = 1.
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why when magnet attract is a pull
Different poles attract If you put two magnets together with different poles pointing towards one another, the magnets will pull towards each other. We say they attract each other.
a man with red-green color blindness (a recessive, sex-linked condition) marries a woman with normal vision whose father was color-blind. what is the probability that they will have a color-blind daughter? that their first son will be color-blind? (note the different wording in the two questions.)
Colorblindness is a congenital illness that is handed down from parents. The X-chromosome contains the gene for red-green colorblindness.
If the colorblind gene is present, one out of every three cone cells does not form or becomes less sensitive to light.
-It is a recessive X-linked illness. Colorblind genes must be present on both X chromosomes in females (XX) in order to manifest phenotypically.
This indicates that if colorblind genes are present on both X-chromosomes, the female will be colorblind. If a woman carries only one color-blind gene, she is referred to be a "carrier," but she will not be colorblind.
-Males (XY) will be colorblind if the gene is exclusively found on his X chromosome. As a result, even if his father is colorblind, a colorblind boy cannot inherit a colorblind gene from him since his father can only pass on an X chromosome to his daughters.
As can be seen, each kid has a 50% probability of being colorblind. Each daughter is 50% likely to be colorblind and 50% likely to be a carrier. The tough aspect about utilizing this table is when Mom isn't colorblind.
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States that cells are the basic unit of life, organisms are made up of one or more cells, and all cells come only from other cells.
a. True
b. False
It is true that cells are the basic unit of life, organisms are made up of one or more cells, and all cells come only from other cells.
What is cell function?
They provide the body with a structure, take in food's nutrients, convert them into energy, and carry out certain functions. Cells also contain the genetic material of the organism and are capable of self-replication. Each part of a cell serves a unique function.
What is cell structure?
The cell membrane, the nucleus, and the cytoplasm are the three components that make up a cell. Intricate arrangements of microscopic fibers and hundreds or even thousands of tiny, unique structures known as organelles can be found in the cytoplasm.
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which term refers to the loose connective tissue layer that surrounds each individual muscle cell? multiple choice question.
Endomysium refers to the loose connective tissue layer that surrounds each individual muscle cell. Thus the correct answer is option (A).
The three layers of connective tissue are the epimysium, perimysium, and endomysium. Muscular fiber collections called fascicles can be found in the skeleton. In the connective tissue, blood vessels and nerves enter and branch out. The tight connective tissue that envelops the entire muscle tissue is known as the epimysium. Several bundles of muscle fibers called fascicles frequently make up the epimysium. The tissue that surrounds each bundle of muscle fibers is called the perimysium. The term "endomysium" refers to the connective tissue that most completely envelops the muscle.
The complete question is:
Which term refers to the loose connective tissue layer that surrounds each individual muscle cell? Multiple choice question.
(A). Endomysium
(B). Perimysium
(C). Fascia
(D). Epimysium
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You decide to compare the genes and dna sequence of a specific chromosome to a homologous chromosome and a nonhomologous chromosome. which of the predictions would you make when comparing the two?
The predictions you would make when comparing the two is that the homologous chromosome can have constant genes and an analogous DNA sequence.
Two chromosomes during a combine unremarkably one familial from the mother and one from the daddy is termed a homologous chromosome. The homologous chromosome is of constant length, bodily structure position, and marking pattern. throughout fertilization, there'll be a pairing of chromosomes within the cell.
Homologous chromosomes are similiar however not identical. every carries constant genes within the same order, however the alleles for every attribute might not be constant. Non-Homologous chromosomes are chromosomes that contain alleles for the various sort of genes.
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describe the differences between baleen whales and toothed whales. what type of food do each eat?
Baleen whales and toothed whales are both types of cetaceans, but they differ in many ways.
Baleen whales are typically larger than toothed whales, and while all baleen whales have two blowholes, most toothed whales only have one. Toothed whales also have teeth and a single, well-defined melon, while baleen whales have baleen plates instead of teeth and two fused melons.
Baleen whales feed on small prey such as krill, plankton, and small fish, which they filter from the water using their baleen plates. Toothed whales, on the other hand, feed on larger prey such as squid, octopus, and fish, which they capture with their teeth.
While baleen whales have several hundred to several thousand baleen plates made of keratin in their upper jaw, toothed whales have teeth. Baleen whales are much larger than toothed whales, and they have a much more streamlined body shape.
Baleen whales typically feed on small animals such as krill, plankton, and fish, while toothed whales feed on larger prey such as squid and fish. The baleen whales use their baleen plates to filter small organisms from the water, while toothed whales use their teeth to capture and tear apart larger prey.
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if nitrogen-fixing bacteria in the soil attach to the roots of a plant and consume the sugar produced by the plant through photosynthesis, the best description of this relationship is group of answer choices predation parasitism competition mutualism
The relationship between nitrogen-fixing bacteria in the soil and roots of plants is mutualism.
The tight ties that develop between species pairs are referred to as symbiotic interactions. They take in many different shapes, including parasitism (when one species gains while the other suffers) and commensalism (where one species benefits and the other is neither harmed nor helped).
Mutualism is a sort of symbiotic association in which all of the participating species gain from one another. Even though mutualism is extremely complicated, it may be loosely divided into two different kinds of relationships. Some species are completely dependent on one another (obligate mutualism), whereas others benefit from their interaction yet might thrive separately (facultative mutualism).
For instance, soil-dwelling nitrogen-fixing bacteria attach to plant roots and eat the sugar made by the plant.
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what is the area of brainstem called that forms a prominent bulge on the anterior aspect of the brainstem?multiple choice question.
The region of the brainstem known as Pons creates a noticeable protrusion on its anterior side.
The cerebral peduncles, which are noticeable ventrolateral white matter bulges, are the third major area of the mesencephalon. These structures are traversed by a large number of the major descending fiber networks as they travel from the cerebral hemispheres to the spinal cord.
The precentral gyrus and the postcentral gyrus are two prominent bulges that get their names from where they are located: just in front of and just behind the central sulcus, respectively. The major motor region, which is where conscious movement is controlled, is located in the precentral gyrus. The midbrain, pons, and medulla oblongata make up the brainstem (sometimes known as the brain stem), which is the distal portion of the brain.
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What happens to the carbon dioxide produced in the krebs cycle?
in animals, what is the difference between reproductive cloning and therapeutic cloning?
Reproductive Cloning is the process of creating genetic copies of entire organisms. Therapeutic cloning is the process of creating genetic copies of tissues or organs in order to replace damaged body parts.
Cloning is an asexual reproduction method. A cloned child would be a genetic duplicate of an existing person. If you cloned yourself, the resulting child would be a new species of human being, not your son or daughter or twin brother or sister.
Reproductive cloning would promote a view of children, and individuals in general, as artifacts that may be created and manufactured to have specific characteristics. Reproductive cloning would reduce an individual's sense of uniqueness. It would go against deeply held beliefs about human individuality and freedom, and it could result to a devaluation of clones in contrast to non-clones.
The process of creating a cloned embryo solely with the goal of generating embryonic stem cells that have the same DNA as the donor cell is known as therapeutic cloning. These stem cells can be utilized in experiments to better understand disease and develop new treatments.
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What were Mendel's conclusions?
Mendel came to the idea that there exist discrete hereditary determinants.
These factors are referred to as genes. Each parent's cell has a pair of genes for each characteristic under investigation. One allele again for the dominant phenotype and another for the complex predictive are present in the F1 from the cross of two pure lines.
Mendel's three laws the Law of Multiple Proportions, the Law of Dominance, as well as the Law of Segregation sum up the main ideas of Mendelian inheritance.
He concluded that genes are inherited from each parent as separate, paired units. Mendel observed how parental genes separated and if they showed up as dominant and recessive qualities in the children. He was aware of the mathematical patterns transmitted from one era to the following.
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june b. gone, 37-year-old female presenting complaint: left flank pain of 2 weeks' duration. physical examination: lumbar range of motion: within normal limits and nonprovocative. flank percussion positive for reproduction of the chief complaint. laboratory: urinalysis shows albuminuria. diagnostic test: ultrasonography revealed multiple cysts in the upper renal pole. diagnosis: polycystic disease referral to: dr. jones, nephrologist what is a nephrologist?
Any indications of renal disease or other diseases that could harm your kidneys should prompt you to consult a nephrologist.
As to why you would visit a nephrologist.A medical professional who focuses on identifying and treating kidney diseases is known as a nephrologist. Any indications of renal disease or other diseases that could harm your kidneys should prompt you to consult a nephrologist.
The conditions that nephrologists treat.Nephrologists are medical experts that diagnose, treat, and manage acute and chronic kidney illnesses and issues. Along with treating these disorders, they also treat associated ones like high blood pressure, fluid retention, and mineral and electrolyte imbalances.
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PLEASE HELP ILL GIVE YOU BRAINLIEST
One student made the incomplete diagram shown below to represent the relationship between magma, igneous rocks, and sedimentary rocks:
three ovals, labeled from left to right, sedimentary rock, magma, and igneous rocks respectively.
Which of these is the correct next step to complete the diagram? (4 points)
a
Put an arrow labeled heat and pressure, pointing from magma to igneous rocks.
b
Put an arrow labeled heat and melt, pointing from igneous rocks to magma.
c
Put an arrow labeled deposition and lithification, pointing from igneous rocks to magma.
d
Put an arrow labeled cools and crystallizes, pointing from igneous rocks to sedimentary rocks.
c. put an arrow labeled deposition and lithification pointing from igneous rocks to magma
(03.02 LC)Which of the following is not true about the Law of Conservation of Energy?
O It states that the total energy in the universe keeps increasing.
O It applies to everything in the universe.
O It states that energy is transformed from one form to another.
O It states that energy is neither created nor destroyed.
The total energy in the universe is not increasing the end energy is always the same, regardless of the form of energy, hence option A is correct.
What is the Law of Conservation of Energy?Energy may change into various forms of energy, for instance, potential energy might be changed into kinetic energy. Energy cannot be generated or destroyed.
In response, according to the rule of conservation of energy, energy can only be transformed from one type of energy to another.
Therefore, the end energy is always the same, regardless of the form of energy, hence option A is correct.
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what is a gene pool? what is a gene pool? a hypothetical collection of all the possible alleles in a population a collection of all the genes that occur in an individual a hypothetical collection of all the genes that occur in a habitat a puddle of water that contains gametes in it
A hypothetical collection of all the possible alleles in a population gene pool . Thus correct option (C).
A gene pool is the collection of all the genes (including alleles) found in a population or species that is capable of reproduction. A big gene pool has a wide range of genetic diversity and is more resilient to environmental stresses.
Primary gene pool, GP-1 is another name for it. The crop species itself, as well as its cultivated races and any wild or weedy spontaneous races are all included in the main gene pool, which is akin to a biological species in and of itself.
All the genes present in a population make up the gene pool. Any population might be included here, including frogs in a pond, trees in a forest, or residents of a town.
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What is a gene pool?
- a hypothetical collection of all the genes that occur in a habitat
- a puddle of water that contains gametes in it
- a hypothetical collection of all the possible alleles in a population
- a collection of all the genes that occur in an individual
Paid farmers subsidies not to plant on part of their land and to kill off excess livestock in order to raise the value of crops.
a. True
b. False
The statement is true, the Agricultural Adjustment Act of 1933, paid subsidies to farmers to avoid planting on part of their land and to kill surplus livestock in order to increase the value of crops.
What was the Agricultural Adjustment Act of 1933?The Agricultural Adjustment Act of 1933 (AAA), was a law passed by Congress during the New Deal era to help raise crop prices by reducing surpluses.
The law provided federal subsidies to farmers for reducing their output, and it also established a system of domestic allotments that set limits on the amount of certain crops that could be produced. The goal of the law was to raise crop prices, which would benefit farmers and help to reduce the effects of the Great Depression.
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SOS
summarize the effects of human population growth and catastrophic events on ecosystems
describe the sources, types, and effects of varying pollutants
assess the consequences of loss of biodiversity
explain the term sustainable development and describe some of its resource
Answer\Explanation
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.Housing and feeding so many people has accelerated the destruction of natural habitats, while higher levels of consumption, particularly in some richer parts of the world, have also increased the exploitation of natural resources and led to growing levels of pollution.