How do woollen clothes keep us warm?​

i belive it is B. oxygen and carbon dioxide

Plants use carbon dioxide for photosynthesis and oxygen is a product of photosynthesis.

The two gases that plants must exchange with the air are oxygen and carbon dioxide. Oxygen is required for respiration while carbon dioxide is required for photosynthesis. The exchange of these gases is essential for the survival of plants and for maintaining the balance of gases in the atmosphere. Option B)

The two gases that plants must exchange with the air are oxygen and carbon dioxide. Plants consume carbon dioxide during photosynthesis and release oxygen back into the atmosphere. This process of photosynthesis occurs in the chloroplasts of the leaves and involves the absorption of sunlight and conversion of carbon dioxide and water into glucose and oxygen.
In the process of respiration, plants use oxygen to break down glucose and release energy. The waste product of respiration is carbon dioxide, which is released back into the atmosphere. This exchange of gases is vital for the survival of plants as well as for maintaining the balance of gases in the atmosphere.
Oxygen is important for the survival of all living organisms, including plants. It is required for respiration, which is the process of releasing energy from food. Carbon dioxide, on the other hand, is a waste product of respiration and is required for photosynthesis. The exchange of these two gases between plants and the atmosphere is essential for the survival of both. Therefore option B) is correct.
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Cooking fires, Portable heaters, Electrical Fires, Smoking and Candles are the human action that can cause fire in home​.

Cooking fires are the leading cause of home fires. Portable heaters are also a big cause of home fires and home fire injuries because it catches fire very easily when it make contact with substances that easily catch fire. Electrical Fires, Smoking and Candles are also big cause of fire in home that is caused by human action.

So we can conclude that Cooking fires, Portable heaters, Electrical Fires, Smoking and Candles are the human action that can cause fire in home​.

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Answer:

b is the correct answer

a) recycling helps to release the burden of waste that is released into the environment

b) There are plants the recycle the plastics and there are plants that recycle metals in the UAE.

c) Recycling would ensure that we do not have a lot of wastes in the environment.

d) We can encourage people to recycle by telling them the importance of the recycling of waste.

The handling of wastes has formed a key part of the discussion of many environmental specialists around the world. We know that there is a limit to which the environment can be able to taken the wastes that are being introduced into it with out treatment  and these can also be able to cause a lot damage in other parts of the world.

The UAE have been a leading country in the rea of the recycling of waste as there are over 291 waste recycling centers that we have in the UAE and this have helped to avoid the build up of waste materials across the country.

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Answer:

D. the Upper and Lower Respiratory Systems

Explanation:

Upper is the nose, sinuses, etc.

Lower is the lungs, bronchial, etc.

Answer:

True

Explanation:

Biological buffers usually work to keep pH in your body on a range of 1500 - 3000.

The behavior you described, where certain species of grass benefit from being grazed by other organisms, represents a mutualistic relationship. Mutualism is a type of symbiotic relationship in which both participating organisms derive benefits from their interaction.

In this case, the grasses benefit from being grazed because the act of grazing stimulates their growth and helps them maintain optimal health. Grazing removes the top portions of the grass, which promotes new shoots and stimulates lateral growth.

Additionally, grazing can prevent excessive shading and allow sunlight to reach lower parts of the grass, aiding in photosynthesis.

On the other hand, the organisms that graze on the grass, such as herbivores or grazers like cattle or certain insects, benefit from the food source provided by the grass. Grazing animals obtain nutrition from consuming the grass, which is a source of energy and nutrients.

Thus, the mutualistic relationship between the grasses and the organisms that graze on them is characterized by reciprocal benefits. The grasses benefit from the stimulation of growth and maintenance, while the grazers benefit from the food resource.

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The best method to decrease the virulence of  microbe capable of QS is to develop a drug that decreases the cell density of the microbial infection.

An ability of an organism to infect the host and cause a disease is described as virulence. Virulence factors are molecules that assists the bacterium to colonize the host at the cellular level. And these factors are  secretory, membrane associated or cytosolic in nature.

Exotoxins is one of the most significant virulence factors of bacteria. is When released by bacteria, exotoxins interrupt and dysregulate important cellular processes. They also help in the bacterial proteins' capacity to invade tissues.

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The vascular plants that produces seeds are pine trees. Thus, option D is correct.

The type of plants in which a well developed vascular bundle is present in order to transport food, nutrients, as well as water from roots to the various parts of plants is known as vascular plants and the vascular plant that produces seeds is pine tree.

The process of germination has been defined as the process during which the organism grows from a spore or the seed and it has been applied to the sprounting of a seedling from the seed of a gymnosperms or an angiosperms.

The process of the germination just depends upon the temperature as well as availability of the water and if the temperature rise or there will be  increase in the temperature the chance of the germination also increases. More increase in the temperature will lead to failure in the process.

Therefore, The vascular plants that produces seeds are pine trees. Thus, option D is correct.

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Answer:

charts that show population increase or decrease.

like

the internet is also one like the san diego zoo has a page where you can see if the animal is flourishing in numbers, or not.

Answer:

The answer is k = −11

Explanation:

f(−2)= 0

f(−2)= − 8  −  24  −  2 k  +  10  =  0

2 k = -22

and finally; k= −11

Answer:

this is true it neutralise easily

It is true that in the DNA isolation process, cells are mixed with sodium chloride (i.e. NaCl) because the sodium (Na ) neutralizes the negative charge of DNA.

DNA extraction is a method of separating DNA from cell membranes, proteins, and other cellular components using physical and/or chemical methods from a sample. In 1869, Friedrich Miescher isolated DNA for the first time.

The ability to extract DNA is critical for studying the genetic causes of disease and developing diagnostics and drugs.

It is also required for forensic science, genome sequencing, detecting bacteria and viruses in the environment, and determining paternity.

Because sodium (Na+) neutralizes the negative charge of DNA, cells are mixed with sodium chloride (i.e. NaCl) during the DNA isolation process. It makes homogenization easier.

Thus, the given statement is true.

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The correct answers in the order are:

a) Rhizobia release a chemical, causing an infection thread to form.

b)respond to rhizobia signals and produce infection thread.

c) infection thread grows into the cortex of the root.

d) extend the infection thread into the cortex.

e) Infection thread releases rhizobia inside cortex cells.

f) allow the infection thread to rupture.

g) Nodule forms from rapidly dividing cortex cells.

h) cause cortex cells to divide rapidly upon contact with rhizobia

Scientists are working to develop non-legume crop plants, such corn, wheat, and rice, into symbiotic partnerships that resemble the one between a legume and rhizobium. But it has turned out that this is a really challenging undertaking. Plant genes that allow the nodule to react to the bacteria in the proper way must be produced at every stage of nodule formation. A non-legume plant would need to be genetically designed with the proper genes and then express those genes at precisely the appropriate time for it to have a symbiotic relationship with rhizobia. You will learn about the stages of nodule formation in the legume-Rhizobium connection through this activity. The formation of root knobs on both vegetables and non-vegetables is one of the most direct and effective methods for nitrogen addiction. Rhizobia release a mixture, which causes a string of contamination to form. response to rhizobia signals and disease string production. The cortex of the root develops with disease string. Cortex-widen the contaminated string. Rhizobia are released by contamination thread inside cortical cells. Allow the contaminated string to splinter. Cortical cells that have separated fast into knob formations. Cause cortical cells to swiftly divide when they come into touch with rhizobia.

The complete question is:

Scientists are trying to engineer non-legume crop plants, such as corn, wheat, and rice, to form symbiotic relationships similar to the legume-rhizobium relationship. but this has proven to be a very difficult task. at each step of nodule formation, plant genes must be expressed that enable the plant to respond appropriately to the bacteria. for a non-legume plant to form a symbiotic relationship with rhizobia, it would need to be engineered with the right genes and then express those genes at exactly the right time. in this activity, you will identify the steps of nodule formation in the legume-rhizobium relationship. in addition, you will indicate what the products of genes added to a non-legume plant would need to do in order to carry out each step. the flowchart below illustrates the steps involved in root nodule formation. the first step has been filled in to get you started. complete the rest of the chart. first, drag labels to targets of group

1, indicating what happens at each step. then, drag labels to targets of group

2, indicating the plant gene functions that must be active at each step. not all labels will be used.

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Answer:

we would die plants give us oxgen fruits and vegtebales  . trees for example we need wood and there leaf to make  doors and paper

Explanation:

Answer:

Explanation:

vPoint Source - a source of water discharged to surface water through a discrete point - generally through a pipe, ditch, or channel.

Nonpoint Source - Nonpoint sources, such as parking lots or athletic fields, discharge runoff water to groundwater or surface water; runoff does not come from  a pipe, ditch, or channel. These sources may contain pollutants such as pesticides, motor oil, and soaps.

Navigable Waters of the United States  For the purposes of the Clean Water Act, the term "navigable waters" includes:

all waters used in commerce, including groundwater;

all interstate waters including wetlands, mudflats, and sand-flats; and

all other waters such as lakes, rivers, streams, wetlands and sloughs.

EPA policy states, "The majority of facilities in the U.S. have the potential to discharge to navigable waters."  The Supreme Court decision in (2006) requires the Army Corps of Engineers and the EPA to determine whether there is a "significant nexus" between a navigable waterway and an area a spill might affect.  In June of 2007, EPA and the Army Corps of Engineers released provisional interpretive guidance regarding the "significant nexus” question. According to this guidance, the agencies will assert jurisdiction over traditional navigable waters, wetlands adjacent thereto, and relatively permanent tributaries thereof. The agencies will generally not assert jurisdiction over swales and ditches that lack routine water flow. Finally, the agencies will apply the "significant nexus" requirement and make a case-by-case, fact-specific analysis on impermanent tributaries and other wetlands.

Additional executive orders were issued 2015 in 2019.  Under the 2019 proposal, traditional navigable waters, tributaries to those waters, certain ditches, certain lakes and ponds, impoundments of jurisdictional waters, and wetlands adjacent to jurisdictional waters would be federally regulated. It also details what are not "waters of the United States," such as features that only contain water during or in response to rainfall (e.g., ephemeral features); groundwater; many ditches, including most roadside or farm ditches; prior converted cropland; stormwater control features; and waste treatment systems.

Could the requirement for one or more NPDES Discharge Permit apply to my campus?

If your campus discharges pollutants directly to navigable waters of the United States through a point source, you must obtain an NPDES permit or redirect the flow of the waste.

Stormwater releases from certain activities require an NPDES permit. The most common activities on college campuses requiring NPDES permits for stormwater are construction activities disturbing more than 1 acre, hazardous waste storage areas operating under the Resource Conservation and Recovery Act permit system, steam-generating power plants, and airports. See Stormwater section below.

Regulations issued by local water authorities, or Publicly Owned Treatment Works (POTWs), not NPDES permits, govern discharges into sanitary sewer systems. See Sewer Use (POTW) section below for more information about requirements for using POTWs for commercial or industrial waste disposal.

What do I have to do related to NPDES Discharge Permits?

Determine where wastewater flows from buildings and processes on your campus. Any industrial or commercial operation (e.g., ice rink melt pits, floor drains, and vehicle wash stations) that discharge into a water of the United States may require an NPDES permit. If required, you must obtain such a permit from the appropriate regulatory agency, probably your state environmental agency.

French drains, dry wells, and septic system leach fields are different from point source discharges because they do not immediately affect surface water. Some state and federal environmental agencies manage these systems under the Underground Injection Control program, part of the Safe Drinking Water Act. See Safe Drinking Water Act for more information.

Details of NPDES

Photosynthesis is a biological process that occurs in plants, algae, and some bacteria. It is the process by which these organisms convert light energy from the sun into chemical energy in the form of glucose (a type of sugar).

Answer:

Explanation:

the Golgi apparatus is involved in the processing of :

salivary amylase

this is because the GC is involved in the secretion of proteins and salivary amylase is protein secreted from the salivary glands

Answer:

Mars is a planet. It is the fourth planet from the Sun. It is the next planet beyond Earth. Mars is more than 142 million miles from the Sun. The planet is about half the size of Earth. A day on Mars is 24.6 hours. A year on Mars is 687 Earth days. Mars is known as the Red Planet. It is red because the soil looks like rusty iron. Mars has two small moons. Their names are Phobos and Deimos.

1) Named after the Roman God of war, Mars is the fourth planet from the sun in our solar system.

2) Mars is also known as the ‘Red Planet’ because, well, it’s red! This signature colour comes from the large amount of a chemical called iron oxide (or ‘rust’ as you might know it) in its rocks and soil.

3) Mars is the second smallest planet in the solar system after Mercury. With a diameter (distance through the middle) of 6,791 kilometres, it’s roughly half the size of Earth.

4) It can get pretty cold on Mars –– much colder than our own planet, since it’s further away from the sun. At the equator, temperatures can reach 20°C, but at its poles they can plummet to as low as -140°C.

5)  Mars is home to the highest mountain in our solar system –– a volcano called Olympus Mons. Standing a whopping 24 kilometres high, it’s about three times the height of Mount Everest!

6)You could jump around three times higher on Mars than you can on Earth. This is because the planet’s gravity – the force that keeps us on the ground – is much weaker.

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Answer:

mars is the fourth planet from the sun.

its surface is made of iron oxide which gives it a red colour.

there are pieces of mars on earth, a Martian meteorite.

mars is the name of the Roman god of war and is often referred to as the "Red Planet"

the tallest mountain in the solar system is on mars.

research has shown signs of ancient floods on Mars but now water mostly exists in icy dirt and thin clouds.

mars has 2 moons, phobos and deimos. They are named for the greek god Phobos and deimos, sons of Ares and personification of fear.

Answer:

DNA is found in the nucleoid

Answer:

              1) The mint leaves were able to sustain the candle flame because of plants ability to produce oxygen.

               2) Ingenhousz demonstrated how a plant recycles energy through processes. In the dark, the plant cannot sustain a flame because it is only releasing carbon dioxide due to the lack of sunlight. But in the light the plant can overcompensate for it's carbon dioxide release with photosynthesis and produce oxygen for the flame therefore demonstrating the interdependence of energy producing processing in a living organism.

Explanation:

Answer:

2 exact copies of double stranded DNA are made

Explanation:

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The correct combination of vital signs is temperature, respiratory rate, and heart rate.

Vital signs are key measurements that provide important indicators of a person's physiological status and overall health. They help healthcare professionals assess and monitor a patient's condition. The vital signs typically include temperature, respiratory rate, heart rate, and blood pressure. Among the options provided, the correct combination of vital signs is temperature, respiratory rate, and heart rate.

Temperature is a measure of the body's internal heat. It can be measured orally, rectally, or with the help of infrared thermometers. Deviations from the normal range may indicate fever or hypothermia, which can be indicative of underlying health issues.

The respiratory rate refers to the number of breaths a person takes per minute. It provides insight into lung function and overall respiratory health. Abnormal respiratory rates may suggest respiratory distress or underlying pulmonary conditions.

Heart rate, also known as pulse rate, measures the number of times the heart beats per minute. It reflects cardiac activity and can be assessed by feeling the pulse at various points in the body. Deviations from the normal heart rate can indicate cardiovascular problems or other physiological abnormalities.

Weight, muscle mass, and height are not typically considered vital signs. They are important anthropometric measurements used for assessing overall body composition, growth, and nutritional status. While these measurements are relevant in healthcare, they are not classified as vital signs.

In summary, the vital signs include temperature, respiratory rate, and heart rate. Monitoring these parameters allows healthcare professionals to gain valuable insights into a patient's health status, identify potential issues, and make informed decisions regarding treatment and care.

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Answer:

More chances of survival

Explanation:

More genetic diversity means that the population is less likely to become extinct when faced with a new selection pressure (disease, environmental change), as they're more flexible to adapt.

Answer:

a transgenic copy of the gene C is sufficient to restore normal eye development

Explanation:

In genetics, there are diverse approaches to determining a gene's function. For example, it is possible to use a complementation test to determine loss-of-function recessive mutations when it is unknown if such mutations fall in the same or in different genes. Similarly to the generation of loss-of-function phenotypes, it is possible to insert a gene and thus produce a gain-of-function mutation that restores normal gene function (i.e., to restore the wild phenotype). Moreover, transgenic organisms refer to genetic engineering techniques by which any foreign or modified gene is inserted in the genome of an organism, which can also be used to study gene function. In this case, the restoration of the normal phenotype (wild-type eyes) is associated with the expression of the transgenic gene C, thereby evidencing that the gene C is required for normal eye development. In the last years, transgenic models have shed light on developmental pathways and on gene function.

Combustion of Fossil Fuels is adding Carbon back to the atmosphere.

A fossil fuel is described as a hydrocarbon-containing material such as coal, oil, and natural gas, formed naturally in the Earth's crust from the remains of dead plants and animals that is extracted and burned as a fuel.

Photosynthesis removes carbon dioxide from the atmosphere and  plants absorb carbon dioxide and use it to produce organic matter.

Animal respiration and plant respiration also release carbon dioxide, but  the differ in that  they do not add new carbon to the atmosphere, as the carbon they release comes from the organic matter that they consume or produce through photosynthesis.

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Answer:

The correct answer is D.

Explanation:

Descriptive science investigation is a study model, according to which a phenomenon is approached and its elements are characterized and its conceptualized, according to a series of methods used for data collection and expression of the same, that is, through this type of research, which uses the method of analysis, it is possible to characterize an object of study or a specific complex system, point out its characteristics and properties. The main objective of this research is the relationship between the factors, the actors and the variables. Researchers not only collect data through  observation but are in charge of studying and analyzing to obtain meaningful results that can contribute to knowledge.