what chemical property makes you sneeze
Answers
Answer:
deficiency in Vitamin D
Explanation:
Related Questions
Which statement best describes how an X-ray machine works?
A. It measures the time it takes light waves to reflect off an object.
B. It measures how long light waves are when they pass through an object.
C.It detects light waves that are reflected by an object.
D. It detects light waves that are able to pass through an object. D. is correct.
Answers
X-rays are a form of electromagnetic radiation, similar to light waves but with a higher frequency and energy. X-ray machines work by generating a beam of X-rays that pass through the body and are detected on the other side by a specialized X-ray detector. The X-rays that pass through the body are attenuated (absorbed) to varying degrees by different tissues and structures, depending on their density and atomic composition. This results in a shadow-like image on the detector, with denser structures appearing as lighter areas and less dense structures appearing as darker areas. X-ray machines are commonly used in medicine to diagnose a variety of conditions and injuries, as well as in other fields such as materials science and airport security.
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What is a polar molecule?
Answers
Answer:
a polar molecule is a molecule that has a charge on one side of the molecule, that is not cancelled out.
Explanation:
i hope this helps you!
Answer: a molecule that has both positive and negative ions
Explanation: a water molecule has an oxygen element and 2 hydrogen elements the oxygen is a negative ion and the hydrogen ions are positive
What are the 5 layers of the epidermis in order?
Answers
The layers of the epidermis are the stratum basale, the lowest layer, the stratum spinosum, the stratum granulosum, the stratum lucidum, and the stratum corneum, the thinnest layer.
The topmost layer of skin on your body is called the epidermis. It defends your body from damage, keeps you hydrated, regenerates skin cells, and contains melanin, which gives your skin its colour. provides a barrier of defence against harmful substances, mechanical, thermal, and physical harm. prevents moisture loss minimises the negative effects of UV radiation. Under the epidermis, in the dermis, are blood vessels, lymphatic vessels, sweat glands, connective tissue, and hair follicles.
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all chemical elements that are needed by living things are recycled in ecosystems true or false
Answers
Answer:
True
Explanation:
the answer is "True" / "T" hope this helps
Elements do not lose and gain energy as they move through ecosystems. Instead, they are continually recycled. Ecosystems recycle every chemical element required by living organisms, including carbon, nitrogen, hydrogen, oxygen, phosphorus, and sulfur. Therefore, it's true.
What is ecosystem?An ecosystem is a region where a bubble of life is created by plants, animals, and other organisms interacting with the weather, environment, and other factors. Abiotic variables, or nonliving components, coexist with biotic components in ecosystems. Plants, animals, and other species are biotic factors.
Elements do not lose and gain energy as they move through ecosystems. Instead, they are continually recycled. Ecosystems recycle every chemical element required by living organisms, including carbon, nitrogen, hydrogen, oxygen, phosphorus, and sulfur.
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what is the heat of enerjy
Answers
Answer:
Heat energy is the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases.
Answer:
\(\huge{\boxed{\boxed{\tt { ✍ \ Heat \ Energy :- }}}} \ \)
⎆ The result of the movement of minute particles known as atoms, molecules, or ions in liquids, solids, and gases is nothing but heat energy.The transfer or flow due to the difference in temperature between the two objects is called heat.
Proteins are large macromolecules composed of thousands
of subunits. The structure of the protein depends
sequence of
on the
Answers
Proteins are large macromolecules that are composed of thousands of subunits called amino acids. The structure of a protein is determined by the sequence of these amino acids.
The sequence of amino acids in a protein is dictated by the genetic code found in DNA. This code is transcribed into a molecule called messenger RNA (mRNA), which carries the instructions for building the protein.
The mRNA is then translated by ribosomes in the cell, where the sequence of amino acids is assembled according to the mRNA code.
The specific sequence of amino acids in a protein is crucial for its function. Different amino acids have different chemical properties, such as being hydrophilic (water-loving) or hydrophobic (water-fearing).
These properties influence how the protein folds into its three-dimensional structure, which in turn determines its function.
To illustrate this, let's consider an example: hemoglobin, the protein responsible for carrying oxygen in our blood. Hemoglobin is made up of four subunits, each containing a specific sequence of amino acids.
This sequence allows hemoglobin to bind to oxygen in the lungs and release it in tissues throughout the body.
If the sequence of amino acids in a protein is altered, it can affect its structure and function. This can lead to various diseases known as proteinopathies, such as sickle cell anemia, where a single amino acid substitution in the hemoglobin protein causes the red blood cells to become deformed and less efficient at carrying oxygen.
In summary, the structure of a protein is determined by the sequence of amino acids. This sequence is encoded in the DNA and transcribed into mRNA, which is then translated into a protein. The specific sequence of amino acids determines how the protein folds and functions in the body.
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what force continues to feive blood through the vasculature during ventricular diastole
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The force that continues to drive blood through the vasculature during ventricular diastole is arterial pressure. Arterial pressure is the blood pressure in the arterial system that forces blood to flow through the blood vessels even during ventricular diastole.
The ventricular diastole is the time during the cardiac cycle when the ventricles are relaxed, and the blood flows through the arteries and other blood vessels.
During ventricular diastole, the pressure in the arteries remains elevated, and the blood flows continuously due to the elastic nature of the arterial walls. The elastic walls of the arteries recoil after each systolic contraction, which helps to maintain the flow of blood and arterial pressure during ventricular diastole. The arteries are also able to store some of the blood ejected from the ventricles during systole, which is then released during diastole to help maintain the arterial pressure.
Another mechanism that helps to maintain blood flow during ventricular diastole is the smooth muscle tone in the walls of the arterioles. The smooth muscles constrict and relax in response to various stimuli, such as hormones, neurotransmitters, and local metabolic factors, to control the blood flow through the capillary beds. This mechanism is known as vascular tone, and it helps to regulate the arterial pressure and blood flow throughout the body.
In summary, arterial pressure is the force that continues to drive blood through the vasculature during ventricular diastole. The elastic nature of the arterial walls, the storage capacity of the arteries, and the vascular tone in the arterioles are the mechanisms that help to maintain the arterial pressure and blood flow during ventricular diastole.
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Driver mutations provide a growth advantage to a tumor cell. which type of mutation is known to accumulate in cancer cells but has no direct contribution to the cancer phenotype?
Answers
Examining tumor tissue for driver mutations can help plan treatments that stop cancer cells from growing.
tumors was EGFR, followed by TP53 (18%), SETD2 (11%) and SMARCA4 (11%). More than 72% (81/112) of cases have mutations in at least one driver gene.
For example, the TP53 tumor suppressor gene is a driver gene, but it is only functional when both alleles of her TP53 gene are mutated. Furthermore, mutations can act as drivers only at certain stages of cancer.
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(b) If you had a material whose composition and previous history was not known. How would you determine if that material had ductile or brittle properties? In your answer use 5 different characteristics along with supporting sketches.
Answers
When examining an unknown material that may either be ductile or brittle, certain characteristics may be observed in order to identify the behavior of the material. Here are the five different characteristics that may be used to determine whether a material is ductile or brittle:
1. Yield strength When a ductile material is stressed to a certain degree, it will begin to deform and change shape. The amount of force needed to begin this process is known as the yield strength. When a brittle material is stressed, it will fracture rather than deform. This indicates that ductile materials are stronger than brittle materials. A graph of stress vs. strain can be used to demonstrate this characteristic.
2. Elastic modulus The elastic modulus of a material refers to its ability to resist deformation when force is applied. This is shown in a stress vs. strain graph by the steepness of the line. Ductile materials have a high elastic modulus, meaning that they can withstand a lot of force without deforming. Brittle materials, on the other hand, have a low elastic modulus, indicating that they will deform under relatively low stress.
3. Tensile strength The tensile strength of a material is the maximum amount of stress it can withstand before breaking. Ductile materials tend to have a higher tensile strength than brittle materials. A graph of stress vs. strain can also be used to demonstrate this characteristic.
4. Toughness A material's toughness refers to its ability to absorb energy before breaking. Ductile materials have a high toughness, as they can absorb a lot of energy before they fail. Brittle materials, however, have low toughness, meaning they break easily when subjected to impact.
5. Ductility The ductility of a material is its ability to deform under tensile stress. Ductile materials can be drawn into wires or rolled into sheets without breaking. A material's ductility can be shown by a graph of stress vs. strain, which shows how much the material can be deformed before breaking. Brittle materials, by contrast, do not have this characteristic, as they cannot be deformed without breaking.
About MaterialMaterial is a substance or thing from which something can be made from, or the stuff needed to make something. Materials are an input to production. Generally, in a technologically advanced society, materials are unfinished consumer goods. Some examples are paper and silk.
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how water molecules orient themselves?
Answers
What branch of science dealing with organisms and their environment?
Answers
The branch of science dealing with organisms and their environment is ecology.
Ecology is the study of how organisms interact with one another and their surroundings. It involves studying the relationships between living organisms, as well as the physical and chemical environment in which they live.
Ecology helps us understand how the environment and living organisms affect each other, and how these interactions can impact the natural world. For example, ecologists might study how a change in temperature affects the growth of a certain plant species or how the introduction of a new predator affects the population of prey animals in an ecosystem.
Overall, ecology is a critical field of study for understanding the natural world and managing ecosystems in a sustainable manner.
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After locating a genome region likely to include a QTL, what must be found in this region? isogenic line introgression line genetic marker andidate gene
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After locating a genome region likely to include a QTL, the genetic marker and candidate gene must be found in this region.
A genetic marker is a DNA sequence that is associated with a particular gene or trait, and a candidate gene is a gene that is thought to be involved in the expression of a trait.
By identifying these two elements, researchers can better understand the relationship between the QTL and the trait of interest.
An isogenic line and an introgression line are also important tools in bb .
An isogenic line is a genetically identical line of organisms that are used as controls in experiments, while an introgression line is a line of organisms that has been genetically modified to include a specific gene or region from another organism.
These lines can be used to study the effects of specific genes or regions on a trait of interest.
Overall, locating a genome region likely to include a QTL is an important step in understanding the genetic basis of a trait. However, further analysis is required to identify the specific genetic elements involved and their effects on the trait.
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if house flies from dairy 3 above often emigrated to dairies 1 and 2, essentially sustaining their populations for the summer months before fall and winter temperatures caused their extinction, the populations might be referred to as:
Answers
The populations of house flies in dairies 1 and 2 could be referred to as unsustainable. This is because their survival and growth depended on the migration of flies from dairy 3 above during the summer months.
Without this influx of flies, the populations in dairies 1 and 2 would not have been able to sustain themselves. However, with the onset of fall and winter temperatures, the house fly populations would eventually face extinction as their reproductive and survival rates decrease.
Therefore, the house fly populations in dairies 1 and 2 can be considered as fragile and dependent on external factors for their existence.
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Arrows have different meanings in different contexts in biology. Which phrase does the best job of describing the meaning of the arrows in this model? O a feedback loop Nest the flow of energy and nutrients the transformation of one thing to another O movement of an organism through space O the passage of time
Answers
Among the given options, the phrase that best describes the meaning of the arrows in this model is "The flow of energy and nutrients".
In biology, arrows are often used to represent the directional movement or transfer of energy and nutrients within biological systems. These arrows indicate the flow of energy from one organism to another, or the movement of nutrients through various trophic levels in food webs or metabolic pathways.
They depict the direction of energy transfer or the movement of molecules, emphasizing the interconnectedness and dynamic nature of biological processes. Therefore, "The flow of energy and nutrients" is the most appropriate phrase to describe the meaning of the arrows in this context.
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complete Question:
Arrows have different meanings in different contexts in biology. Which phrase does the best job of describing the meaning of the arrows in this model?
A feedback loopThe flow of energy and nutrientsThe transformation of one thing to anotherMovement of an organism through spaceThe passage of timeWhat provides the heat that drives the formation of igneous and metamorphic rocks?
Answers
Answer:
Something known as magma chambers.
Explanation:
A magma chamber is a big blob of melted, liquid rock within the Continental Crust.
The rock under our feet (Continental Crust) is basically solid. At subduction zones, in particular, friction (or other) heat can melt the rock at the base of the Continental Crust, and then blobs of molten rock melt their way upwards into the Continental Crust. That’s a magma chamber.
Sometimes the magma chamber has vents leading up to the open air and the magma erupts as volcanoes. In that case, the magma chamber can empty out and the ground above collapses into it, making a hole called a caldera. But more often, the magma in the magma chamber cools down to form solid rock. Such slow-cooled rock will form crystals as it cools. One form of such crystalline rock is granite; cooled down former magma chambers now solid granite are called plutons or batholiths. Typically they will be several kilometres across, and later erosion may well expose them at the surface.
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The processes of photosynthesis,transpiration,evaporation,condensation,respiration,and excretion are all involved in the cycling
a.carbon
b.water
c.phosphorus
d.nitrogen
Answers
Answer: B. Water
-During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil.
-Evapotranspiration also includes transpiration, which is the water movement from the soil to the atmosphere via plants.
-Evaporation is the process that changes liquid water to gaseous water (water vapor).
-Condensation is the process by which water vapor in the air is changed into liquid water.
- In order to take in oxygen and eliminate carbon dioxide, our lungs must be continually moistened with water.
-In humans, because usual fluid intake is above the requirement for sufficient hydration, the kidney excretes excess water.
b.water is the right answer
Chemical bonds are broken in which molecules?
Answers
Each molecule of ammonia (nh3) is made up of one nitrogen atom and three hydrogen atoms. which term best describes ammonia?(1 point) compound compound heterogeneous mixture heterogeneous mixture homogeneous mixture homogeneous mixture element element
Answers
Each molecule of ammonia (NH₃) is made up of one nitrogen atom and three hydrogen atoms. The term that best describes ammonia is: compound.
Ammonia is an inorganic molecule with a sharp pungent smell. It occurs in the gaseous state. However, it can be easily liquified when pressure is exerted. It is soluble in water. The molecule can be dangerous when comes to skin contact as it can cause blisters and burns.
Compound is a substance that is formed by the combination of two or more elements combined together in certain ratios. These elements join together by the covalent bonds due to the sharing of electrons between them.
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Many cells of the immune system have receptors that detect peptidoglycans and lipopolysaccharides. How do pathogenic bacteria avoid detection
Answers
Pathogenic bacteria can avoid detection by the immune system by modifying or disguising their peptidoglycans and lipopolysaccharides.
Peptidoglycans and lipopolysaccharides are components of bacterial cell walls that can be recognized by receptors on immune cells as indicators of bacterial infection. However, pathogenic bacteria have evolved strategies to evade detection by the immune system.
One way they accomplish this is by modifying the structure of their peptidoglycans and lipopolysaccharides, making them less recognizable to the immune receptors. For example, they can alter the composition or arrangement of these molecules to evade detection.
Another method is the secretion of enzymes that degrade or modify peptidoglycans and lipopolysaccharides, further hindering their recognition. Some bacteria can also coat themselves with host-derived molecules, effectively disguising themselves as part of the host's own cells and avoiding immune detection. These evasion mechanisms allow pathogenic bacteria to evade the immune response and establish infections in the host organism.
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Which endocrine gland is indicated by the arrow?
pineal gland
adrenal gland
hypothalamus
ovary
Answers
Answer:
adrenal gland
Explanation:
Answer:
adrenal gland
Explanation:
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What is the relationship between mutation, the cell cycle, and cancer? Select all statements that apply.
A. Mutated genes typically allow cells to respond to checkpoint proteins that halt the cell cycle, thus avoiding formation of tumors.
B. As a result of unregulated cell cycles, cells may become cancerous, meaning that the cells grow and divide uncontrollably.
C. Cancerous cells may form malignant tumors that invade and destroy surrounding healthy tissue.
D. Mutated, defective genes may cause cells to become unable to respond to signals that regulate the cell cyle
Answers
Answer:
i think its D :)
Explanation:
these homologous chromosomes carry different alleles of the a and b genes. how would crossing over affect the distribution of the four alleles: a, b, a, and b?
Answers
Crossing over between homologous chromosomes can affect the distribution of alleles during meiosis.
In this case, the homologous chromosomes carry different alleles of the a and b genes, resulting in the genotype AaBb and AaBb. During crossing over, the chromatids of the homologous chromosomes can exchange segments of DNA, resulting in new combinations of alleles on each chromosome.
If crossing over occurs between the a and b genes on the homologous chromosomes, it can result in the exchange of the A and B alleles. This would create new combinations of alleles, such as Ab and Ba, which were not present in the original chromosomes. As a result, the distribution of the four alleles, a, b, a, and b, would be altered and new combinations of alleles would be present in the gametes produced by the cell.
Overall, crossing over can result in the shuffling and distribution of alleles on homologous chromosomes, leading to genetic diversity in offspring.
Crossing over would lead to a recombination of the alleles on the homologous chromosomes, potentially creating new combinations of the a and b alleles. This process affects the distribution of the alleles in the following way:
1. During meiosis, homologous chromosomes pair up, and each chromosome carries different alleles of the a and b genes (e.g., one chromosome has a and b, while the other has a and b).
2. Crossing over occurs when the homologous chromosomes exchange genetic material, resulting in a recombination of the alleles.
3. As a result of crossing over, new combinations of alleles may be formed on the homologous chromosomes (e.g., one chromosome may now have a and b, while the other has a and b).
4. The recombination of alleles increases genetic variation in the offspring, as the new combinations of alleles are passed on to the next generation.
In conclusion, crossing over affects the distribution of the four alleles (a, b, a, and b) by recombining them on homologous chromosomes, potentially creating new allele combinations and increasing genetic variation in offspring.
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what part of the coronavirus is most likely immunogenic and would stimulate active immunity against the virus?
Answers
Answer:
Your innate immune system
Explanation:
Hope this helps! =D
Why does the rate of diffusion of carbon dioxide increase during exercise.
Answers
When you exercise, there are more alveoli recruited for gas exchange, therefore the surface area available for gas exchange increases, and thus the rate of diffusion of gases such as oxygen will increase.
What do you mean by diffusion?Diffusion is the net movement of anything generally from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in Gibbs free energy or chemical potential.
The net movement of oxygen and carbon dioxide across the alveolar-capillary membrane of mammalian lungs and the net movement of glucose down the concentration gradient are diffusion examples in biological systems.
Diffusion is important to cells because it allows them to gain the useful substances they require to obtain energy and grow, and lets them get rid of waste products. This table shows examples of substances required by cell and associated waste products.
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3. In addition to being flavorful to humans and discouraging herbivores such as insects, research has shown that many herbs and spices can also ________.
O cause certain cancers
O be used to treat superficial wounds
O inhibit the growth of bacteria and fungi
O encourage the growth of bacteria and fungi
O do ore than one of the above
Answers
In addition to being flavorful to humans and discouraging herbivores such as insects, research has shown that many herbs and spices can also inhibit the growth of bacteria and fungi.
Research has shown that many herbs and spices such as thyme, cinnamon, and cloves can inhibit the growth of bacteria and fungi. Essential oils present in the herbs and spices have antimicrobial properties. These antimicrobial compounds work by targeting the cellular membrane, the cytoplasm, and the proteins of microorganisms.In addition to being used as food flavorings, herbs and spices are also used in traditional medicines. Some of these herbs have even been used to develop new antibiotics. As herbs and spices are natural antimicrobials, they could help in combating drug-resistant bacteria, and also reduce the risk of food spoilage.
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Please help me need the answer . how far is the distance, to the nearest decimal,between the two marks? By the way None of these is wrong
Answers
Which of the following is NOT a type of tissue found in plants?A) DermalB) Non livingC) VascularD) Ground
Answers
Plants have three types of tissues:
• Dermal, tissue, which forms the surface of the leaves and stem.
,• Vascular, tissue, which includes xylem and phloem
,• Ground, tissue, where photosynthesis takes place.
This means B, non-living is the right answer because is NOT a type of plant tissue.
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There are some clouds forming in the sky on a hot day, but inside the clouds, there are freezing temperatures. Which form of precipitation would you expect?
A) Hail
B) Rain
C) Sleet
D) Snow
Answers
Answer:
C) Sleet is the correct answer
I hope it's help for you
Have a nice day
Answer:
Hail - A
Explanation:
The temperature outside of the clouds is very hot which caused the colder water in the clouds to condensate. When the clouds got colder, the water began to freeze which would cause tiny drops of ice, i.e, hail to fall to the ground. Hope this helps :)
Based on your knowledge of scientific laws and theories, which of the following is true?
a. Both laws and theories can be expressed in terms of a single mathematical equation.
b. They are ordered, with theories coming before laws.
c. A law explains what happens; a theory explains why something happens.
d. Neither laws nor theories can ever change.
Answers
Answer:
C
Explanation:
A law is an observation; a theory is the explanation of that observation.
source: http://www.differencebetween.net/miscellaneous/culture-miscellaneous/difference-between-theory-and-law/
In science, a scientific law is a descriptive statement or mathematical equation that describes a natural phenomenon or pattern consistently observed in the natural world.
The correct statement is option c.
The statement explains what happens and is often based on empirical evidence obtained from repeated observations and experiments.
On the other hand, a scientific theory is a well-substantiated and comprehensive explanation of some aspect of the natural world. It goes beyond mere observation and provides an understanding of why and how a particular phenomenon occurs. A scientific theory is supported by a substantial body of evidence, and it can be used to make predictions about future observations or experiments.
Scientific laws and theories are both essential components of scientific understanding, and they are not ordered in terms of coming before or after each other.
Hence , C is the correct option
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The somatosensory cortex is in the____ lobe
A. frontal
B. occipital
C. parietal
D. temporal
Answers
Answer:
C- Parietal lobe
Explanation:
right on ED 2020
The somatosensory cortex is in the parietal lobe. The somatosensory cortex then integrates all of this data, which may include temperature, touch, and pain, to create a "map" of the body, hence option C is correct.
What is somatosensory cortex?Tactile information from the body is sent to the somatosensory cortex, which shares space with the parietal lobe.
The brain's somatosensory cortex is in charge of taking in and processing sensory data from all over the body, including touch, temperature, and pain.
The primary motor cortex of the frontal lobe is located in front of this cortex, which is situated in the postcentral gyrus of the parietal lobe.
Therefore, the somatosensory cortex is in the parietal lobe.
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