What are the three substances that generally make up paint? describe each part. what are polymers? what is a scanning electron microscope? what are its advantages? what is the pdq? what is it used for?

Answers

Answer 1
the three parts that make up paint are pigments, binders and solvents. Pigments consist generally of organic and non-organic compounds and materials that are added to paint to produce a particular color. Binders are substances that provide support or structure for the pigment and solvents to work. Solvents work to dissolve or disperse these substances into liquid form.
Polymers are a group of atoms that form in repetitious patterns The scanning electron microscope is a microscope that works by shooting beams of electrons at the slide and recording the emissions of the electrons. One advantage is that it has much better magnification than other microscopes
The PDQ is one of the most collaborative ventures to be found in forensic science. Accredited users are given a free copy of the PDQ in exchange for submitting 60 new





Related Questions

Which nutrients contribute most of the energy needed for physical activity -?

Answers

The answer would be carbohydrate

Carbohydrate, mainly glucose, is the substrate that was used as the main source of energy production. The second energy source would be fat as it gives much more energy than carbohydrate and protein. Protein is used for making new body cells and repairing the damaged one.

What is parallel editing?
a. the cutting together of two or more shots of the same character as he or she moves across space.
b. the cutting together of two or more shots that signals a long passage of time.
c. the cutting together of two or more lines of action that occur simultaneously at different locations.
d. the cutting together of two or more shots that have nothing explicitly to do with one another.
e. the cutting together of two or more shots that link eye-lines?

Answers

Answer:

The correct option is C.

Explanation:

Parallel editing refers to the method of alternating two or more scenes that occur simultaneously at different locations in a video. This technique is also known as cross cutting. The method is one of the methods that video editors used to edit videos of cinemas and films. Parallel editing can also be used to add suspense and pacing to an unfolding film.  

Which group of living things can move energy from consumers at the top of an energy pyramid back to producers at the bottom? *

A. decomposers
B. producers
C. consumers
D. Nothing can move energy back to the bottom of an energy pyramid.

Answers

The answer to your answer is A. Decomposers.

According to the National Institute of Health, peripheral arterial disease (PAD) happens when there is a narrowing of the blood vessels outside of your heart. The cause of PAD is atherosclerosis. This can reduce or stop blood flow, usually to the legs, causing them to hurt or feel numb. If severe enough, blocked blood flow can cause tissue death. If this condition is left untreated, a foot or leg may need to be amputated.

Based on the passage above, which of the following would indicate PAD?
Low flexibility of blood vessels and increased number of white blood cells
High flexibility of blood vessels and decreased number of white blood cells
Low flexibility of blood vessels in the limbs and high blood pressure
High flexibility of blood vessels in the limbs and low blood pressure

Answers

The answer would be
Low flexibility of blood vessels in the limbs and high blood pressure

The correct answer is C. Low flexibility of blood vessels in the limbs and high blood pressure

Explanation:

Peripheral arterial disease (PAD) as indicated in the text occurs as a result of blood vessels becoming narrow due to atherosclerosis "narrowing of the blood vessels outside of your heart", this and the fact PAD is also the result of fatty material accumulating and blood vessels hardening,show in this disease one of the indicators would be low flexibility of blood vessels as due to the lack of flexibility the flow of blood is limited which is one of the main consequences of PAD. Besides this, PAD can be indicated by high blood pressure, considering the low flexibility in blood vessels causes the blood to push against the walls of vessels more than normal and therefore there is more pressure in the circulatory system. Thus, based on the passage "low flexibility of blood vessels in the limbs and high blood pressure" would indicate PAD.

What is one of the most effective ways to stop invasive animal species from entering the Great Lakes ecosystem?

Answers

most of the ways to stop invasive animal species from entering the Great Lakes ecosystem is starting with people themselves. try not to plant anything that would be invasive to the echo system and also try helping out by cleaning out the Great Lakes by picking up litter and so forth


Answer:

The correct answer is - cleaning ballast water.

Explanation:

In the great lakes, 65% of the invasive species come from the ships that carry ballast water tanks to stabilize them on the long route journeys, this release invasive species when loading and unloading cargo.

Cleaning up these ballast water is one of the most effective ways to stop the new invasive to enter the Great Lakes.

When you exhale, air passes through the respiratory structures in which order? A) alveolus, trachea, bronchus, bronchiole, larynx, pharynx, nasal cavity B) alveolus, bronchus, bronchiole, trachea, larynx, pharynx, nasal cavity C) alveolus, bronchiole, bronchus, trachea, larynx, pharynx, nasal cavity D) alveolus, trachea, bronchus, bronchiole, pharynx, larynx, nasal cavity

Answers

The correct answer is C) alveolus, bronchiole, bronchus, trachea, larynx, pharynx, nasal cavity.  

Exhale (breathe out) is the reverse process of inhaling (breathe in). Thus, the air goes through the bronchioles, out the bronchi, out the trachea, larynx, pharynx and finally out through your mouth and nose. Exhaled air contains wastes and carbon dioxide and it's warm.

Answer:

c

Explanation:

how's your day today

A scientist wants to study photosynthesis in a newly discovered species. Which of these cell strict should the scientist study ?

A-vacuoles
B-chloroplasts
C-mitochondria
D-ribosomes

Answers

I’m not sure, but I think the answer is A
The answer is B Chloroplasts

An_____ is an immunity-producing substance formed from weak, dead, or parts of viruses or bacteria

Answers

An antigen is something that can produce an immune response...can come from any of the above.
VACCINE is an immunity-producing substance formed from weak, dead, or parts of viruses or bacteria


Vaccine is the right answer! Goodluck

What is one way in which the lymphatic system works together with the immune system?

Answers

The immune system produces B cells and T cells and these are stored in the lymph nodes, which is part of the lymphatic system

Answer:

Lymphatic system serves as site for production and maturation of lymphocytes.

Explanation:

Primary lymphoid organs of lymphatic system serves as site for production and maturation of lymphocytes which differentiate into B and T lymphocytes. Lymphatic system serves as first line of defense against infections since it transports antibodies, lymphocytes and pathogen along with lymph. Lymphocytes encounter the pathogens in secondary lymphoid tissues and proliferate to become actively involved cells. Spleen serves to filter the blood and presents the pathogens to lymphocytes and macrophages which in turn kill the pathogens.

Describe one common role of both bacteria and fungi in the movement of energy and matter in ecosystems. (b) describe how analyzing the data from the treatment group sprayed with water only will increase the validity of the experimental results.

Answers

The common role is decomposition.

Decomposition is a process by which organic substances, like leaves or dead animals, are broken down into simpler matter. 
A lot of different types of organisms, called the decomposers, will consume the organic substances and continue an essential part of the nutrient cycle. These organisms can be both bacteria and fungi.

This is important for recycling the organic matter that occupies space in the biosphere and that way, continue the movement of energy and matter in ecosystems.

If the sequence of a nontemplate strand of dna is 5'-accgcatccgagtcac-3' what is the sequence of the transcript?

Answers

The RNA polymerase reads this non-coding strand and builds the transcript in the 5’ to 3’ direction. So you need to go backwards with this strand!
So the transcript will be (remember RNA uses U not T!):
5’- gugacucggaugcggu-3’

An adolescent growth spurt occurs only in boys.
a. True
b. False

Answers

The answer is false
Both adolescence males and females have growth spurts

The correct answer is B. False

Explanation:

In development, a growth spurt refers to a period of time in which individuals experience rapid growth or development. In the case of an adolescent growth spurt, this is a natural process that occurs to all individuals including boys and girls during puberty. This takes place because during adolescence the hormone levels change and this leads to rapid growth as well as development or maturation of bones, muscle and the sexual or reproductive system. According to this, it is false an adolescent growth spurt occurs only in boys because this is a natural process that occurs on both girls and boys.

Within any large animal population, there is _______ a variety of traits. And between different animal populations, there is _______ a variety of traits.

A. always; always

B. never; always

C. never; sometimes

D. sometimes; sometimes

Answers

Its not option D yall he lying, its always; always

A student conducted an experiment to test the effect of the digestive enzyme pepsin on cooked egg white and potato in the presence of hydrochloric acid at a pH of 1. Which could be a probable inference? Pepsin digests egg white because it mainly contains protein. Pepsin digests potato because it mainly contains starch. Pepsin digests egg white because it mainly contains fat. NextReset

Answers

This would be the answer:

Pepsin digests egg white because it mainly contains protein.

Hope this helps.

This is a is a natural substance that cannot be re-made, re-grown, or regenerated as fast as it is used.

Answers

Fossil Fuels is a perfect example
Random guess, but oil/coal? It takes millions of years to form and people are using it up really quickly

Infants need fat because it aids in absorption of several vitamins and also helps the ______________ to develop.nervous systemkidneysskinreproductive system

Answers

Answer: nervous system

Infants need fat as aid in absorption of several vitamins. IT also helps the brain or the nervous system to develop normally. Fats insulate all nervous system tissues in the body. Getting enough of this help infants feel full. It is also essential for growth and development. 

Match each hormone with the description of what would happen if it was absent in a pubescent male. not all labels will be used.

Answers

GnRH - FSH and LH would not be secreted by the anterior pituitary.
Follicle-stimulating hormone (FSH) is a gonadotropin hormone secreted by the anterior pituitary which regulates development and pubertal maturation. Luteinizing hormone (LH) is also a hormone produced by cells of the anterior pituitary. In females, LH regulates ovulation, while in males it stimulates the production of testosterone. LH and FSH act together and regulate important processes of the reproductive system.
Gonadotropin-releasing hormone (GnRH) is secreted by the hypothalamus and is responsible for the release of the FSH and LH. Therefore, if GnRH was absent in a pubescent male, FSH and LH would not be released.

LH/FSH - Testosterone secretion would not occur.
As described above, LH and FSH work synergistically to control many factors of the reproductive system. LH is responsible for stimulating the production of testosterone by the Leydig cells, which are located in the testicles.
More specifically, when testosterone levels are low, GnRH is released by the hypothalamus which in turn triggers the secretion of LH and FSH by the anterior pituitary. The secretion of these two hormones triggers the production of testosterone by the testicles.
Therefore, if LH was absent, the secretion of testosterone would not occur. 

FSH - Spermatogenesis would not occur due to the absence of androgen-binding protein.
Spermatogenesis is the process of the development of mature male gametes (haploid spermatozoa) in the testis. FSH triggers the secretion of androgen-binding protein (ABP) by the Sertoli cells, which are specialized cells in the testicles. ABP is responsible for increasing the concentration of testosterone in levels high enough so that the spermatogenesis will occur.
Therefore, if FSH is absent, ABP will not be secreted and spermatogenesis will not occur.

Testosterone - A person would experience a loss of sex drive.
Testosterone is the primary male sex hormone which is involved in many processes of the reproductive system. Testosterone's most important role is the development of male reproductive tissues and secondary sexual characteristics. This steroid hormone is also responsible for health and well-being and the sense of sexual drive. If testosterone was absent in a pubescent male, then the person would have serious developmental issues and would also experience a loss of sex drive.

Inhibin - Spermatogenesis would occur in excess.
The Sertoli cells, which are located in the testis, secrete the polypeptide hormone inhibin, which acts on the pituitary control of the spermatogenesis. When the sperm count is too high, the inhibin is released into the blood and inhibits the production of GnRH and FSH. This inhibition will cause the spermatogenesis process to stop.
Therefore, if the inhibin is absent, the control of spermatogenesis will not happen and would occur in excess.

Which of the following statements regarding nonspecific immune responses is correct? A. A nonspecific immune response is the body's first line of defense against invaders. B. The influenza vaccine provides immunity by triggering nonspecific immune responses. C. Nonspecific immune responses involve the use of B and T lymphocytes. D. all of these

Answers

option A is correct answer

The correct answer is option A.

The immune system safeguards the body against the probable harmful materials by reacting and determining the antigens. Antigens are the components situated on the surface of viruses, cells, bacteria, or fungi. The immune system destructs and determines, or attempts to destroy the components, which comprise antigens.

Nonspecific or innate immunity is the defense system with which an individual is born. It safeguards the person against all the antigens. Innate immunity includes barriers, which keep the harmful substances from getting inside the body. These barriers make the first line of defense in the immune reaction.


In liver cells, the inner mitochondrial membranes are about five times the area of the outer mitochondrial membranes. what purpose must this serve?

Answers

The inner membrane is responsible for cellular respiration and thus, contains proteins involved in electron transport and ATP synthesis. This membrane envelops the mitochondrial matrix, where the electrons are produced (the citric acid cycle) and then travel from one protein complex to the next in the inner membrane (electron transport chain). The final electron acceptor is O2, and this ultimately forms H2O. At the same time, the electron transport chain produces ATP (oxidative phosphorylation via ATP synthase). ATP synthase uses concentration gradient of H+ (formed during electron transport), power synthesis of the energy molecule-ATP. Liver cells (hepatocytes) need a lot of ATP energy, for the processes like protein and other synthesis, protein storage, the transformation of carbohydrates…
Final answer:

The larger area of the inner mitochondrial membrane accommodates the proteins and enzymes necessary for the oxidative phosphorylation process used to generate ATP, a key energy molecule. The increased surface area due to the complex folds, known as cristae, allows for increased ATP production, supporting the liver cell's high metabolic activity.

Explanation:

The inner mitochondrial membranes in liver cells being about five times the area of the outer mitochondrial membranes serves a crucial function in energy production. The inner mitochondrial membranes house the proteins and enzymes necessary for oxidative phosphorylation, a process used by cells to generate ATP, which is a key energy molecule. The larger the area of the inner membrane, the more space there is for these proteins and enzymes to reside, hence the greater the capacity for ATP production.

Mitochondria, often described as the powerhouses of the cells, are the sites of cellular respiration, where biochemical processes of respiration and energy production occur. The complex folds of the inner mitochondrial membranes, known as cristae, increase the surface area, allowing for increased production of ATP. Therefore, this high ratio of inner to outer membrane area in the mitochondria of liver cells supports their high metabolic activity.

Learn more about Mitochondrial Membranes here:

https://brainly.com/question/31808640

#SPJ6

The fluid mosaic model describes the___.
A.organization of organelles in cytoplasm
B.cell membrane
C.movement of carbohydrates in and out of the cell
D.extracellular matrix

Answers

Describes the B. cell membrane

Answer:

The correct answer is B.cell membrane

Explanation:

The fluid mosaic model describes the mosaic nature of the cell membrane. Fluid mosaic modal signifies that the plasma membrane is made up of lipid bilayer which is not fully rigid and gives fluidity to its membrane.

Due to this fluidity, components of the plasma membrane, like various plasma membrane proteins move freely in the membranes. This elasticity of the plasma membrane allows some proteins to do flip-flop movement.

These movements of plasma membrane components play important role in the cell signaling and transport of molecules across the cell. Therefore the correct answer is B.cell membrane.

A puggle is a type of dog first produced by mating two other types of dog a pug and a beagle what is that process

Answers

The process of mating two different breeds of dogs to create a new breed is called crossbreeding or designer breeding. The characteristics of the resulting puppies can vary depending on the genetic traits inherited from each parent breed.

What is Crossbreeding?

Crossbreeding is the deliberate breeding of two different breeds of dogs to create offspring that possess desirable traits from both parent breeds.

The goal of crossbreeding is to produce a new breed that has the desirable traits of both parent breeds, such as appearance, temperament, or working ability.

In the case of a puggle, which is a mix of a pug and a beagle, the breeding process involves mating a purebred pug with a purebred beagle to produce a litter of hybrid puppies that inherit traits from both parent breeds.

It's important to note that while crossbreeding can be a way to create a unique and desirable breed, it is also controversial and has faced criticism from some animal welfare advocates.

Crossbreeding can lead to a variety of health problems, particularly when the parents have significant differences in size or structure.

Therefore, responsible breeding practices are important to ensure the health and well-being of the parent dogs and their offspring.

To know more about Crossbreeding:

https://brainly.com/question/8588470

#SPJ3

The production of a puggle from mating a pug and a beagle is known as intentional breeding or artificial selection. Similar to how a cockapoo is bred from a poodle and a cocker spaniel, this process involves selecting parents with desirable traits. It is a human-driven practice that has led to a wide variety of dog breeds.

When a puggle is created by mating a pug and a beagle, it is an example of intentional breeding or artificial selection. This process involves choosing two different breeds with desirable traits to produce a new breed that exhibits a combination of these traits. Similarly, the breeding of a poodle and a cocker spaniel results in a breed known as the cockapoo.

This form of breeding occurs when humans intervene in the selection process, which has been practiced throughout history to create an array of domesticated animals with certain characteristics. While different dog breeds can interbreed to create hybrid dogs like the puggle and cockapoo, it's important to note that different species, such as the bald eagle and African fish eagle, may produce infertile hybrids due to incompatible genes that control development.

The creation of different dog breeds has largely been influenced by human activity, particularly through kennel clubs and dog shows which began in Victorian England. The American Kennel Club (AKC) continues to recognize new breeds, demonstrating the ongoing evolution and development of dog breeds under human influence.

How do scientists use the Doppler effect to measure the actual motion of stars?

Answers

Doppler effect works using sound waves as well as light waves. It is used in studying the motion of objects in the Universe such as galaxies, planets as well as the stars. If things are moving toward someone it means wavelengths are being shortened.

The Doppler effect helps scientists determine a star's radial velocity and rotational speed by analyzing spectral lines for shifts. Redshifts indicate a star moving away, blueshifts indicate an approach, and line broadening suggests rotation.

Scientists use the Doppler effect to measure the actual motion of stars in several ways. They can measure a star's radial velocity, the speed at which it moves toward or away from us, by observing the Doppler shifts in the star's spectrum. When the star moves away from Earth, the spectral lines show a redshift; when it approaches, they exhibit a blueshift. This shift in the wavelength of light can be used to determine the speed of the star relative to the observer.

The Doppler effect can also reveal if a star is rotating by observing the widening of spectral lines, a phenomenon known as line broadening. Light from the edge of the star rotating toward us shifts toward shorter wavelengths (blueshift), while light from the receding edge shifts to longer wavelengths (redshift). Consequently, the spectral lines we observe from the star are broader than those from a non-rotating star, and the amount of broadening can indicate the star's rotational speed.

Additionally, high-resolution spectroscopy allows astronomers to detect subtle variations in a star's radial velocity caused by the gravitational pull of an orbiting planet, leading to planet detection. These minuscule changes do not depend on the star's distance, as long as high-quality spectra can be obtained by large telescopes.

Enzymes
A) are composed of long chains of fatty acids
B) can be destroyed by variations in temperature or pH
C) are used up, in the process of performing a chemical reaction
D) raise the amount of energy required to start a chemical reaction

Answers

Final answer:

Enzymes are not destroyed by temperature or pH variations; they can be denatured, making them inactive. These proteins act as catalysts, lowering the activation energy of reactions without being consumed in the process.

Explanation:

The correct answer to which of the following is not true about enzymes is option B) can be destroyed by variations in temperature or pH. Enzymes are not destroyed; they can be denatured or lose their functional shape due to extreme temperatures or pH levels. The denaturation renders them less effective or inactive, but it is a physical change, not a destruction. Enzymes are usually proteins made up of amino acid chains and serve as biocatalysts that accelerate biochemical reactions by specifically lowering the activation energy required for a reaction to proceed. Enzymes are not consumed in the reactions they catalyze; instead, they remain unchanged by the reaction and can be used repeatedly. Lastly, enzymes do not raise the energy requirement for a chemical reaction; instead, they lower it, thus enhancing the reaction rate without being used up.

The oceanic zone is _____. mostly photic mostly aphotic mostly benthic

Answers

The oceanic zone is mostly aphotic.

Photic zone is the part of the ocean where the light penetrates the depth and gets scattered in the water. This zone makes up a small part of the ocean ecosystem as light penetrates only for a few meters of depth. After this depth the aphotic zone begins where there is absence of light.

Benthic zone is the floor of the ocean where the shelled and aphotic deep sea animals live.

The oceanic zone here is mostly aphotic, lacking sufficient light for photosynthesis.

The oceanic zone is mostly aphotic, meaning it lacks sufficient light for photosynthesis.

Within the ocean, the photic zone is the portion where light can penetrate, and it extends to a depth of approximately 200 meters.

At depths greater than 200 meters, light cannot penetrate, and this is referred to as the aphotic zone.

The majority of the ocean is aphotic and mostly devoid of light.

Learn more about oceanic zone here:

https://brainly.com/question/4409167

#SPJ6

In opsonization, antigens that are coated with antibodies are susceptible to

Answers

Out of the following given choices;

A. Further antibody attack.

B. Phagocytosis

C. Helper T cells

D. B cells.

E. None of the above.

The answer is B. Phagocytises is the engulfment of a particle from the external environment, by a cell, for ingestion. This is especially critical for the function of macrophages, which are immune cells. These macrophages have receptors for the Fc region of the immunoglobulin on their cell membrane surface.

when you move your fingers to type a text message you are using motor neurons of the




Answers

central nervous system

In which kingdom are an overwhelming majority of its individuals producers? A) Animalia B) Fungi C) Insecta D) Plantae

Answers

The answer is D) Plantae 
Insecta isn't a kingdom and of whose individual producers?

Describe how evolution changes the relative frequency of alleles in a gene pool. Why does this happen?

Answers

Allele frequencies in a population may change due to four fundamental forces of evolution: natural selection, genetic drift, mutations and gene flow. Mutations are the ultimate source of new alleles in a gene pool

When sedimentary rock is undisturbed , what is the relationship of the top layer and bottom layer

Answers

When sedimentary rock is undisturbed, the bottom is oldest, each layer above is younger, top is youngest.  

Answer:

The Top Layer Is Older Than The Botton Layer

Explanation:

You can say im a Nerd ;)

The most widespread pollutant that can cause long-term lung damage is:

Answers

Pollution that is all around to the knowledge I’ve gathered my whole life
Other Questions
Compared to the nucleus 5626Fe, what is the radius of the nucleus 112 48Cd? what is considered the worlds oldest organized religion? What is an adverb to describe chapter 7 of lord of the flies? Your friend father just had a heart attack what are three strategies you can suggest your friend use to reduce his own risk of developing cardiovascular disease Louis sullivan used which type of construction in the late 19th century in chicago to build increasingly tall buildings? Why did the Ku Klux Klan target scalawags with violence? A. Scalawags were Northerners who came to the South. B. Scalawags were wealthy, former plantation owners. C. Scalawags had opposed secession and the Civil War. D. Scalawags were powerful members of the White League. ABCD and DECF are both squares. If AC = 28 millimeters, what is the perimeter of DECF? Use a change of variables to find the indefinite integral xe^(x^2) dx If no fixed duration of the partnership is specified, the partnership is a partnership in perpetuity, which means that the partnership cannot be dissolved. a. True b. False Which change characterized one difference between the first and the second Industrial Revolutions?****=What I believe is the correct answer.Electricity replaced steam power in homes and businesses.****Machines began to take the place of workers.Steel production made it faster and easier to lay railroads.Farm enclosures made more people available to work in industry.Please, help me out on this, and if I'm wrong, then please tell me which one is correct. As often through the purple night, Below the starry clusters bright, Some bearded meteor, trailing light,Moves over still Shalott. (The Lady of Shalott)What connotations does Tennyson evoke by comparing Lancelot to a meteor? 1 dazzling light and repetitive cycles 2falling, brilliance, and doom 3mystery and romance of the night 4solidity and danger In how many ways can 4 blue flags 3 green flags and 2 flags be arranged Which headline suggests a neutral point of view on the subject matter? A.Congress Passes New Environmental Legislation B.Congressional Liberals Push Additional Environmental Legislation C.Congress Gains Momentum on Environmental Progress D.Congress Bends to Environmental Lobby's Demands How much sugar is there in 100g of 15% sugar syrup? there are three broad techniques available to policy makers in their attempt to achieve their goals. discuss at least two of these three techniques and give examples of each? What is the value of g' (or, to put it another way, the cost) when 2nadp+ and 2h2o are converted to 2nadph plus 2h+ plus o2? Sort the following taxonomic levels in order from largest to smallest. Largest being 1st, smallest being 7th. Object A has 604 J of kinetic energy and 285 J of gravitational potential energy. Object B has 481 J of kinetic energy and 300 J of gravitational potential energy. Which object has more mechanical energy? Object A has more mechanical energy. Object B has more mechanical energy. They have the same amount of mechanical energy. There is not enough information to know. Do you economies of India and China are expanding in similar ways what sectors of the both economies are the largest Which perspective of psychology states that our behavior is completely dependent on our environment and that there is no such thing as internal motivation? (this perspective says that we are entirely shaped by nurture rather than nature)?