(a) What is pollution?
(b) Name two (2) pollutant
(c) State four (4) effects of
(d) Explain four (4) ways of
(e) Mention two (2) harmful​

Members of the group A streptococci (GAS) cause all of the following except (E) epiglottitis.

Streptococci are the gram-positive bacteria that are spherical in structure. They are very common for causing varying types of infections from milt to severe types. The most common site of infection by streptococci is skin and throat.

Epiglottis is a lid like structure is present above the larynx which is movable and prevents the entry of food and water into the windpipe. It is a very common site for infection and swelling. Severe conditions can also cause respiratory failure. The reason for infection can be bacterial or smoking or intake of drugs.

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Answer:

Igneous rocks that form below the Earth's surface are called intrusive igneous rocks (or plutonic). They form when magma enters an underground chamber, cools very slowly, and forms rocks full of large crystals. Igneous rocks that form above the Earth's surface are called extrusive igneous rocks

Explanation:

Answer:

3.33 g/cm^3

Explanation:

The equation for density(d) is d= mass(m) / volume(v)

We are given the mass but not the volume. However, the equation for volume is v = length x width x height. Therefore, all we have to do is plug in the given numbers.

v = 8 x 6 x 5 = 240 cm^3

d = 800 / 240 = 3.33 g/cm^3

Therefore, the density of this rectangular block is 3.33 grams per centimeter cubed (g/cm^3).

Answer:

Scientists used the scientific method of investigation to test this phenomenon. The scientific method consists of these steps:

Make observations: Scientists observed that nerve damage causes severe pain. Scientists knew bone marrow cells seemed to decrease nerve pain, but the reason was unknown.

Ask questions and construct the hypothesis: Would injecting bone marrow cells into the spinal cord decrease pain?

Test the hypothesis: Injected bone marrow cells into the spinal cord of mice that had nerve damage. Observed changes in the cells, and monitored the pain levels in the mice.

Analyze the results and make a conclusion: Determined that the pain decreased because the bone marrow cells released a pain-relieving protein that helps damaged cells.

Test and modify: Make a plan to repeat the test in humans.

Explanation:

The correct sequence of hemostasis is: vascular spasm, coagulation, platelet plug formation. So, option D is accurate.

The process of hemostasis involves a series of events that occur to stop bleeding and maintain blood vessel integrity. It begins with vascular spasm, which is the contraction of smooth muscles in the blood vessel walls to reduce blood flow and limit the size of the injured area. This is followed by coagulation, where a complex series of reactions involving clotting factors leads to the formation of a fibrin clot to seal the damaged blood vessel. Lastly, platelet plug formation occurs, where platelets adhere to the site of injury and aggregate to form a temporary plug, further assisting in the formation of the clot.

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The complete question is:

Which one of the following represents the proper sequence of hemostasis

A) vascular spasm, platelet plug formation, coagulation.

B) vascular spasm, coagulation, platelet plug formation

C) platelet plug formation, vascular spasm, coagulation

D) vascular spasm, coagulation, platelet plug formation

Answer:

PH is a measure of how acidic base water is. The range goes from 0-14, with 7 being neutral. PH s of less than 7 indicates a base. PH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.

Explanation:

#Hope its help you#...

Answer:

A. is stored after removal from the atmosphere

Explanation:

A carbon sink is a place where carbon is stored after removal from the atmosphere. Carbon is stored in a carbon sink when they are removed from the atmosphere.

A carbon sink are reservoir (usually natural) where carbon is stored. Carbon sink store carbon because of their ability to absorb more carbon. Examples of carbon sinks are plants and water. Plants and water has the capability to absorb more quantity of carbon from the atmosphere and release less quantity of carbon.

Carbon is a chemical elements represented by the symbol C. It has the atomic number 6 and belongs to group 14 of the periodic table.

The function of cilia is to move water relative to the cell in a regular movement of the cilia. This process can either result in the cell moving through the water, typical for many single-celled organisms, or in moving water and its contents across the surface of the cell.

B - store and transmit hereditary information

The study of cre elements in different species has revealed that there can be significant variation in these elements without causing a significant change in overall gene expression patterns. This is a good example of cryptic genetic variation, which refers to genetic variation that is not readily apparent in an organism's phenotype.

In this case, the variation in cre elements may not affect the expression of the gene in question, but it could still have an impact on other traits or functions that are controlled by the same or related genes. This highlights the importance of considering genetic variation beyond just the genes themselves, and taking into account the regulatory elements that control their expression.

It also underscores the complexity of genetic interactions and the potential for epistasis, or the way in which different genes can interact with each other to produce a particular phenotype. Additionally, competitive binding may play a role in this context, as the variation in cre elements could impact the ability of regulatory proteins to bind to the DNA and control gene expression. Overall, this is a complex and nuanced issue that requires a long answer to fully unpack.

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Root hairs do not significantly increase the volume of a root, but they greatly increase its surface area. This increase provides the plant with a greater capacity for absorbing water and nutrients from the soil.

The surface area of a root is considerably increased by root hairs, and this boosts the plant's capacity to absorb water and nutrients from the soil. Although root hairs do not significantly increase the root's volume, they do significantly expand its surface area. Long, thin projections of root cells that stick out into the soil are called "root hairs." They significantly expand the root system's surface area, which improves the plant's ability to absorb water and nutrients. When compared to the surface area of the root, the surface area of the root hairs might be 10 to 100 times larger.

Plants benefit from the increase in surface area offered by root hairs in a number of ways. The ability to better absorb water and nutrients from the soil, which are crucial for plant growth and development, is the first benefit. Moreover, it aids in the plant's establishment of a more solid root system in the soil, which is necessary for stability and support. Last but not least, it enables the interchange of gases between the plant and the soil, which is necessary for respiration and other metabolic processes.

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Answer:

Im not sure what your exactly asking but for the last question just say something along the lines of how Europe was the highest popualtion dessity and Australia has the lowest. Do you need help with the bar graph?

Explanation:

Answer:  You can say that there is sometimes a pattern in the numbers.  In the graph, The density of Africa minus North America's density equals 2, and the density of North America minus South America's density also equals 2.

Sorry, if this didn't help and also if it is not the right answer.

Answer:

C. Carbon Dioxide (CO2)

Explanation:

The waxy part of candles usually has paraffin or is made of paraffin. Burning it eventually emits carbon dioxide.

Conservationists in northwest Thailand are working to conserve the Indochinese subspecies of tiger that is on the brink of extinction. These tigers are found in Cambodia, Laos, Myanmar, Thailand, and Vietnam, but their numbers have been declining due to habitat loss and poaching.The Indochinese tiger (Panthera tigris corbetti) is one of the six tiger subspecies and is found in the tropical forests of Southeast Asia. Its habitat spans across various ecosystems, from the Himalayan foothills to the dry forests of Cambodia.

Despite being the second-largest tiger subspecies, the Indochinese tiger is endangered and on the brink of extinction.The Wildlife Conservation Society (WCS) is working with the Thai government and local partners to save this critically endangered tiger from extinction. WCS has established a tiger monitoring system in the region that monitors the tiger population and provides data on the effectiveness of conservation measures. The organization is also working with local communities to reduce human-tiger conflict and promote sustainable livelihoods, which reduces the need for poaching.

In addition, the Thai government has stepped up efforts to protect the Indochinese tiger. They have designated several wildlife sanctuaries to protect the tiger’s habitat and increased penalties for poaching and wildlife trafficking. These conservation efforts have shown some success, with the tiger population slowly increasing in some areas. However, much work still needs to be done to ensure the long-term survival of this iconic species.

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When a ligand is scarce, a cell can increase its sensitivity to the ligand by producing more receptors for the ligand.

The process of production of more receptors for the ligand is termed as up-regulation. In up-regulation, cells increase the number of receptors that bind to the ligand. This increases the chances of the ligand encountering a receptor to bind to and create a signal.Certain cells are very sensitive to the concentration of a ligand.

Allosteric inhibition is a process by which an inhibitor binds to a protein and alters its activity. This means that when the inhibitor binds, it changes the structure of the protein, causing it to become less active, or inactive. Hence, allosteric inhibition doesn't help increase sensitivity but reduce it.

Producing more of the ligand is not always the solution since the cell cannot always control the production of the ligand.

Thus, the correct answer is option A.

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Clearcutting disturbs soils, wetlands, and peatlands, releasing their vast carbon stores, and diminishes the boreal forest's ability to sequester carbon from the atmosphere. As such, it is often an ecologically harmful form of logging.

The molecule responsible to reserve oxygen is Hemoglobin and myoglobin

Hemoglobin is the molecule acts as oxygen reserve for the tissue energy because it has iron atoms attached to the globin chain where one oxygen molecule (gets into the body by respiration) will gets attached to the iron atom of the hemoglobin and will carry it to every parts of the body

Myoglobin is the oxygen and iron binding protein which is present in cardiac and skeleton muscles.

This is the reason that the hemoglobin and myoglobin molecule acts as oxygen reserve for the tissue energy

Globin is just a colorless protein which lacks the iron atom which is responsible for oxygen transportation. Nephroglobin not even exist in nature.

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The statement that is true regarding the cellular structure of a neuron is; The neurology resident told Sally that neurons and their dendrites, which send and receive signals, made up the nerves and that the information was transported only from the PNS to the CNS. Option A is correct.

This statement accurately describes the composition of nerves and the direction of information transmission. Neurons, which consist of a cell body, dendrites, and an axon, are the basic building blocks of the nervous system. Dendrites receive signals from other neurons, while the axon transmits signals to other neurons.

Nerves, on the other hand, are composed of bundled axons of neurons and are responsible for transmitting information between the peripheral nervous system (PNS) and the central nervous system (CNS). The information flow typically occurs from the PNS to the CNS.

Hence, A. is the correct option.

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--The given question is incomplete, the complete question is

"While the neurology resident, Dr. Takahashi, was performing her examination, Sally asked her what a nerve was made of exactly. Which of the following statements is true regarding the cellular structure of a neuron? A) The neurology resident told Sally that axons of neurons make up the nerves that transfer information between the PNS and CNS. B) The neurology resident told Sally that the cell body, or some, made up the nerves and that this structure was what allowed the signal to travel between the CNS and PNS. C) The neurology resident told Sally that neurons and their dendrites, which send and receive signals, made up the nerves and that the information was transported only from the PNS to the CNS. D) The neurology resident told Sally that neurons and their dendrites, which send and receive signals, made up the nerves and that the information was transported only from the CNS to the PNS."--

Answer:

Because they will die if they don't eat food, they need the protein to keep them moving and there muscles strong. Some animals get food off of other animals.

Explanation:

Answer:

Explanation:

Well there is animals who only Eat plants and not other animals

Examples of large herbivores include cows, elk, and buffalo. These animals eat grass,

tree bark, aquatic vegetation, and shrubby growth. Herbivores can also be medium-sized

Hope this helps

The fate of a Drosophila larva that inherits two copies of a mutant bicoid gene (one mutant allele from each heterozygous parent) would be, It develops 2 heads, one at each end of the larva. Thus, option B is correct.

The bicoid gene in Drosophila is essential for the establishment of the anterior-posterior axis during early embryonic development. It plays a crucial role in specifying head and thorax structures by forming a concentration gradient from anterior to posterior. If a Drosophila larva inherits two copies of a mutant bicoid gene (one mutant allele from each heterozygous parent), it will lack functional bicoid protein. The absence of bicoid protein disrupts the proper patterning of the embryo, particularly the anterior regions.

Without the proper anterior-posterior gradient established by bicoid protein, the embryo fails to properly specify head structures. As a result, the larva develops two heads, one at each end, instead of the normal head and tail orientation. It's important to note that this aberration occurs in the larval stage, and the developmental abnormalities manifest in the form of duplicated heads, rather than tails. This aberrant development is a consequence of the disrupted anterior-posterior axis patterning due to the absence of functional bicoid protein.

Therefore, option B is the correct answer.

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White matter is not found in the cerebral cortex (option c).

White matter is made up of myelinated fibers that transmit nerve impulses and is found throughout the central nervous system. It is present in the outer portion of the spinal cord, corpus callosum, and corticospinal tracts.

However, it is not found in the cerebral cortex, which is the outer layer of the brain responsible for consciousness, perception, and decision-making.

The cerebral cortex is composed of gray matter, which is made up of nerve cell bodies and unmyelinated fibers.

The lack of white matter in the cerebral cortex allows for more intricate connections and processing between neurons, contributing to the complex functions of this part of the brain.

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Fats are a type of lipid that serve as energy stores and can be converted into enormous amounts of energy.

Ingested triglycerides begin to break down into shorter chain fatty acids and then into monoglyceride molecules in the colon thanks to pancreatic lipases, which break down lipids after they have been emulsified by bile salts.

When food enters the small intestine as chyme, intestinal cells in the intestinal mucosa release the digestive hormone cholecystokinin (CCK). The gallbladder constricts as a result of the pancreas releasing pancreatic lipase, which causes the stored bile salts to be released into the gut. CCK also travels to the brain, where it can act as an appetite suppressant.

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Iodophors and chloramines are similar because they are both halogen-containing compounds that slowly release their active ingredients because they release their active ingredients more slowly than the elemental forms of these halogens.

As we know, Iodophor is an iodine-containing solution used in the dairy and brewing industries as a sanitizer. Chloramines are disinfectants and are used to kill germs in drinking water. As both the compound used to kill bacteria, both contain halogen compounds which equalize the numbers of the hydrogen atoms.

Therefore, Iodophors and chloramines, both compounds, release their active ingredients slower because of their chemical properties, as halogen takes time to equalize the number of hydrogen atoms. Thus, Iodophors and chloramines are very active and effective and widely used by industries but are slower.

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Answer:

prophase- G1, S, G2, M

telophase- chromosomes condense and nucleus dissolves. centromeres and spindle fibers move into position

metaphase- lines at middle

anaphase- separated by spindle fibers and nuclear membrane regenerated

cytokinesis- splitting of cytoplasm

The term that describes the situation in which children receiving the mutant allele from their father express the condition earlier in life in Huntington's disease (HD) is "genetic anticipation."

The situation where children receiving the mutant allele from their father express the condition earlier in life is known as "genetic anticipation." Genetic anticipation refers to the phenomenon in which a genetic disorder exhibits an earlier age of onset and more severe symptoms in successive generations.

In the case of Huntington's disease (HD), a neurodegenerative disorder caused by a mutation in the HTT gene, the condition is typically not expressed until middle age. However, due to the expansion of a repeated trinucleotide sequence (CAG) in the mutant allele, the number of repeats tends to increase as it is passed from one generation to the next.

This results in an earlier onset and more severe symptoms in subsequent generations. Therefore, children who inherit the mutant allele from their father may experience symptoms of HD at an earlier age compared to their affected parent. This phenomenon of earlier onset and increased severity in subsequent generations is a characteristic feature of genetic anticipation in HD.

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Answer:

Explanation:

Bio (physiological pathology)

Psycho (thoughts emotions and behaviours such as psychological distress, fear/avoidance beliefs, current coping methods and attribution)

Social (socio-economical, socio-environmental, and cultural factors sucht as work issues, family circumstances and benefits/economics)

Answer:

C.  

Recycling glass is an energy-saving practice.

Explanation:

Got it right on the test

The claim that recycling glass is an energy-saving activity, hence option C is correct.

Recycling is a beneficial activity that involves recycling things that have been taken from the environment.

Recycled glass production decreases linked to water and air pollutants by 50% and 20%, respectively. Glass recycling frees up landfill areas that would otherwise be occupied by old bottles and jars.

Recycling is a sustainable ecological strategy that might aid in preserving our world. Because recycled materials are used again instead of being synthesized from scratch, recycling may also help us conserve energy.

Therefore, it can be said that recycling glass is a technique that helps to conserve energy, hence option C is correct.

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Answer:

They wanted to stop the taxes.

Explanation:

Answer:

"The main purpose of the Boston Non-importation agreement was to protest the Townshend Revenue Act and boycott the majority of British goods. It was signed by Boston merchants and traders on August 1, 1768, and was effective from January 1, the very next year." (wikipedia)

"The existing non-consumption movement soon takes on a political hue as boycotts are encouraged both to save money and to force Britain to repeal the duties." (https://www.masshist.org/revolution/non_importation.php)