1. Explain using diagram how monomers are arranged in Thermoplastic and Thermosettingplastics.
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Explanation:
In thermoplastics, the arrangement of monomeric units is linear and in thermosetting plastics, it is cross-linked. Thermoplastics are usually soft, weak and less brittle, so can get soften on heating and stiffen on cooling. They can be melted, remoulded and recycled easily.
Related Questions
Certain blood vessels that contain specialized sensors that detect the level of internal pressure and transmit messages to the nervous system, which then triggers the smooth muscle in the vessel walls to make any needed size adjustments. These sensors are called: Select one:
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Which of the following is an example of a consumer? Tree Sun Rabbit Mushroom
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A consumer feeds on plants or other animals for energy. So in your examples, the rabbit is the consumer.
Which latitude lines does photoperiodism have the greatest effect? Why?
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Answer: A short-day plant will not flower if light is turned on for a few minutes in the middle of the night and a long-day plant can flower if exposed to more red-light in the middle of the night. Cryptochromes are another type of photoreceptor that is important in photoperiodism. Cryptochromes absorb blue light and UV-A.
Explanation:
PLEASE HELP!! What are the limitations of sending information using electromagnetic waves?
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Answer:
Explanation:
he limitations of sending information using electromagnetic waves is that when the electromagnetic waves move outward in all directions, wave transmitters need to be focused to transmit their signals to a single specified location.
The process whereby the earth’s life changes over time through changes in genes of populations of organisms in succeeding generations is called____.a. emigration.b. mutation.c. natural selection.d. evolution.e. genetic drift.
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Answer:
The correct answer is option : d. evolution.
Explanation:
Change in the heritable traits or characteristics of population of a organism over time by the adaption or changes in genes of such population over successive generation is known as the evolution.
These changes that cause the evolution of the biological population is caused by the process of adaption through natural selection that is the ability of the passing beneficial genes from parent to offspring.
Thus, the correct answer is option D. evolution.
I high statement best describes the scientist who contributed to our current body of scientific knowledge
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Answer:
See the answer below
Explanation:
First, it may seem that the question is with a typographical error. I guess you wanted to ask, "Which statement best describes the scientist who contributed to our current body of scientific knowledge?"
To answer the question, anyone that has engaged in research following the established scientific method and was able to report the findings from the research by publishing it in a recognized journal has contributed to our current body of scientific knowledge.
In this regard, men and women of all races, through time have contributed to our current body of scientific knowledge.
please answer the question
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Answer:
two of the DNA fingerprint are same when they contain the same nitrogenous bases in the same location of the DNA.
Explanation:
The DNA fingerprint is one of the most important tool as a forensic medicine expert to to form such condition and rule it out to come to a diagnosis.
DNA fingerprint uses the base pair which a different for all the other human beings. Due to this from the blood or other cells of the body there can be an evidence of the person and this is usually done on a comparative basis.
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Which statement about balancing selection is correct? View Available Hint(s) Hint 1.opened hint What is balancing selection, and how does it differ from other forms of selection? Which statement about balancing selection is correct? When balancing selection occurs, no single phenotype has a distinct advantage over others in terms of fitness. When balancing selection occurs, all phenotypes have equal fitness. When balancing selection occurs, certain phenotypes are favored when they are common but not when they are rare. When balancing selection occurs, phenotype does not matter.
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Answer:
Correct statement: When balancing selection occurs, certain phenotypes are favored when they are common but not when they are rare
Explanation:
You will find the explanation in the attached file due to technical problems.
Drag each characteristic to the correct location on the phylogenetic tree. Complete the phylogenetic tree by matching each characteristic that arose during the evolution of animals to its correct position.
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Answer:
The correct characteristics are - tissue, coelom, segmentation, endoskeleton, and backbone from top to bottom boxes.
Explanation:
Answer:
issue, coelom, segmentation, endoskeleton, and backbone
Explanation:
plato
How are plants adapted to increase the amount of water and carbon dioxide they absorb?
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According to the graph, which statement below is true?
A. This enzyme works equally well at all temperatures.
B. This enzyme works best at 10 degrees Celsius.
C. This enzyme works best at 45 degrees Celsius.
D. This enzyme works best at 60 degrees Celsius.
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The rate of enzyme activity is at its highest when the temperature is 45°C. Thus option C is correct.
What are the factors affecting enzyme activity ?The optimum temperature for most of the enzymes is between 25-35°C and above 50°C leads to destruction of enzymes
The rate also increases with increased enzyme concentration up to the saturation point
Enzymes work at their optimum pH. The rate of enzymatic reaction depend on substrate concentration.
The accumulation of the products decreases the activity of enzymes, as they combine with the active site of enzymes by forming a loose complex and inhibits the activity of enzymes.
Some chemical substances like co-factors, potassium ion (K⁺), manganese ion (Mn²⁺) can increases the enzyme activity.
water increases the reaction rate. Light increases the reaction rate in some enzymes but harmful radiation like UV rays and X-rays decreases activity.
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which aspect of el nino can give scientists a preview of earth as temperatures rise with global warming?
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Answer:
Its warming of sea surface temperatures
Answer:
its warming of sea surface temperatures
Explanation:
What is absorption?
A. getting rid of the parts of the food that the body couldn't
use
B. absorbing nutrients into the blood stream from the food
that was eaten
C. the breaking down of the food that has entered the body
D. putting food and drinks into your body
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Answer:
option(B)
Explanation:
Absorbing nutrients into the blood stream from the food that was eaten is called absorption.
How
might a sinus infection affect the rest of the respiratory system?
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Answer:
The inability of the sinuses to drain and the associated lack of airflow create an environment that is ideal for bacterial growth. In acute viral sinusitis, the virus that caused the upper respiratory infection has infected the sinuses and continues to produce mucus, inflammation, and congestion.
Find the odd one out on the basis of not having cellular structure.
a) Bacteria
b) Protozoa
c) Virus
d) Fungi
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option C virus
All the prokaryotes have a cell structure that includes nucleus, Golgi apparatus and ribosomes. prokaryotes survive in nature on their own or inside the body of the host. Viruses, on the other hand, lacks cellular structure and only consists of the genetic material which is multiplied by using host cell machinery
Antibodies:_______. A. play a large role in cell-mediated immunity. B. are produced by both T and B cells. C. are composed of four light and four heavy polypeptide chains. D. are not specific, but act generally. E. have a variable region that binds to a specific antigenic determinant.
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Answer:
E. have a variable region that binds to a specific antigenic determinant.
Antibodies E. have a variable region that binds to a specific antigenic determinant.
What is the region of the antibody that the antigen binds to?This location of the antibody is known as the Fab (fragment, antigen binding) place. it's far composed of 1 constant and one variable domain from every heavy and light chain of the antibody. The paratope is shaped on the amino terminal cease of the antibody monomer by the variable domains from the heavy and light chains.
What binds to an antigenic determinant?An antigenic determinant is a website online of an antigen molecule that is termed an epitope and interacts with the unique antigen-binding site within the variable vicinity of an antibody molecule called a paratope.
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Eye color is an example of 1. Transcriptional control 2. gene expression 3. translational control 4. gene regulation
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Answer: Gene expression
structure of leaf is complementary to its function explain
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Answer:
All leaves have the same basic structure - a midrib, an edge, veins and a petiole. The main function of a leaf is to carry out photosynthesis, which provides the plant with the food it needs to survive. Plants provide food for all life on the planet.
Explanation:
what is meant by photosynthesis
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Answer:
Photosynthesis is a physio-chemical process by which green plants use light energy to drive the synthesis of organic compounds. It is an enzyme regulated anabolic process.
Explanation:
Answer:
During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. ... This transforms the water into oxygen and the carbon dioxide into glucose. The plant then releases the oxygen back into the air, and stores energy within the glucose molecules.
Redactar un ensayo reconociendo y valorando nuestra identidad, patrimonio histórico y cultural:
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La respuesta correcta para esta pregunta abierta es la siguiente.
Desafortunadamente no mencionas el país donde vives, para redactar el ensayo tomando en cuenta los valores y cultura de ese país. Sin embargo, te pongo el ejemplo de mi país. Tu ajusta las ideas al tuyo. Deseo que te sirva.
Uno de los más grandes atributos que tenemos los Mexicanos es nuestra reconocida variedad cultural, lo cual nos da una identidad única en el mundo.
Somo un país con una de las historias más ricas del planeta, ya que somos descendientes de civilizaciones tan antiguas como la Olmeca y la Tolteca, además de los grandes imperios Maya y Azteca, dos grandes culturas de Mesoamérica.
Cada región en los 32 estados del país, es un México diferente. Lo que nos une es esa preciosa bandera tricolor, con nuestro símbolo patrio: un águila devorando una serpiente.
Somos un país donde se encuentran muchos de los sitios arqueológicos más importantes de las civilizaciones antiguas. Por ejemplo, el mundo Maya: Chichen Itza(petrimonio de la Humanidad por parte de la UNESCO), Palenque, Uxmal, Tulum, entre muchos otros. O el sitio arqueológico de Cholula, con la pirámide cuya nase es la más grande del mundo. En Oaxaca está el sitio arequológico de Monte Albán. Y por su puesto, la gran ciudad de los dioses, Teotihuacán, con sus imponentes pirámides del Sol, la Luna, y el Quetzalcoatl.
Nuestra comida es reconocidamundialmente por su sasón, sabor, y variados ingredientes. La Yucateca y sus papatzules o huevos motuleños. ¡Qué decir de la cochinita pibil! La Poblana con su riquísimo mole, cemitas o chalupas. El cabrito en el estado de Nuevo León. En fin, no hay estado en donde no haya una receta propia para cocinar enchiladas, tacos, sopes, tlacoyos, huaraches, tostadas, tlayudas, o tamales.
No cabe duda que los Mexicanos nos sentimos orgullosos de 600 años de historia, luchas, independencia y la solidaridad que nos caracteriza como país.
Drag each label to the correct location. Classify the interactions as being direct or indirect competition. Two eagles fight over a salmon carcass. All the gray foxes in a habitat prey primarily on penguins. Two colonies of black ants clash over a wasp. Gray squirrels in an area rely on nuts for food.
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Answer:
Two eagles fight over a salmon carcass- DIRECT
All the gray foxes in a habitat prey primarily on penguins- INDIRECT
Two colonies of black ants clash over a wasp- DIRECT
Gray squirrels in an area rely on nuts for food- INDIRECT
Explanation:
Living organisms of same or different species tend to interact with one another in their natural habitat. One of those interactions is competition, which occurs when living organisms share the same limited resources or occupy the same niche in their habitat.
However, competitive interaction between organisms can either be direct or indirect. Direct interaction is that which involves a physical interaction between the organisms i.e. a confrontation. A struggling for the limited resource is evident. For example, two eagles fighting over a salmon carcass and two colonies of black ants clashing over a wasp shows the form of physical confrontation for the limited resource between the organisms involved. Hence, they are examples of direct competition.
On the other hand, indirect competition involves the competition for a limited resource without a physical confrontation or struggle. Organisms make use of the limited resource until it becomes unavailable to competitors. For example, gray foxes in a habitat that prey primarily on penguins and gray squirrels in an area relying on nuts for food shows a competition for a scarce resource without any physical interaction between them. Hence, they are examples of indirect competition.
punnet squares are a useful tool in genetic studies. Which of the following describes the most likely use of this tool?
a. To quantify proportions of offspring with polygenetic traits
b. To determine the genotypic ratios of crosses
c. To determine frequencies of recombination
d. to measure phenotypic variability
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Answer:
B
Explanation:
To determine the genotypic ratios of crosses
How do buffers play a role in
homeostasis in living things?
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Answer:
Buffers are commonly used in living organisms to help maintain a relatively stable pH.
In biological systems, chemical buffers prevent sharp and sudden changes in pH.
In biology, homeostasis refers to stable conditions required for the survival of organisms.The pH is a scale used to determine how acidic/basic water is. The pH range from 0 to 14 ( a pH equal to 7 is neutral).In human blood normal pH is about 7.35 to 7.45. A sudden change in this value alters and negatively affects the homeostasis of the body.The carbonic acid-bicarbonate is the most important chemical buffer which is used for mantaining acid-base balance (homeostasis) in the blood.The blood pH can change due to respiratory acidosis/alkalosis and metabolic acidosis/alkalosis.In conclusion, chemical buffers prevent sharp and sudden changes in pH.
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write one ecological importance of mucor.
mucor is a microorganism!
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Answer:
I actually I understand but I can try I would give three importance I no
Explanation:
1)It can be used in producing ethanol
2) It has a large array of sugar and can be used as a food source
3) It is also used as fish feed and maybe a valuable tool to clean oil spills
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choose one plant or animal and what are the 3 adaptions this organisms has
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6.Explain how animals in Vertebrata are classified into further subgroups.
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Answer:
Vertebrates are further classified according to several criteria like exoskeleton, respiratory organs, method of giving birth, number of chambers in heart, mode of living etc. They are further classified into classes Pisces, Amphibia, Reptilia, Aves and Mammals
En la raza de ovejas Rommey Marsh, un gen conocido como gris letal, provoca que el feto gris GG, muera antes de las 15 semanas de gestación; El Genotipo heterocigótico Gg produce lana gris y el genotipo homocigótico gg produce lana negra. Si se cruzan individuos heterocigóticos. Cuáles serán las proporciones fenotípicas esperadas en la progenie viva? *
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Answer
1:2:1
Please check the file,due to technical reasons there was issues with submission
Explanation:
A scientist wants to test how a species of insect reacts to changes in its
environment. She puts the insect in a container and leaves it outside
overnight. Which is the dependent, rather than independent, variable in this
experiment?
O A. The amount of light available to the insect
O B. The dew that collects for the insect to drink
O C. The behavior of the insect in the container
O D. The change in temperature as the sun goes down
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Answer:
C is the correct answer
Explanation:
Shivering and vasoconstriction would be signaled to cause a: A. increase in pH. B. decrease in temperature. C. decrease in pH. D. increase in temperature.
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Answer:D
Explanation: shivering occurs when someone is cold and vasoconstriction is when the blood vessels close to the skin and the veins closer to the skin surface constrict as a result of dat air doesn’t enter the body
Vasoconstriction is the narrowing of the blood vessels that hinders blood flow. Vasoconstriction and shivering will lead to an increase in the temperature through thermoregulation. Thus, option d is correct.
What is thermoregulation?Thermoregulation is the maintenance and balancing of the temperature and heat in the body. They are regulated by many factors including shivering and vasoconstriction.
During the vasoconstriction, the blood vessels close to the skin surface close and the body shivers as a result of cold or decreased temperature. This signals the body to increase the temperature so that shivering can be stopped.
Therefore, vasoconstriction and shivering signal the body to increase the temperature.
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sustitución de una es estructura que el animal ha perdido
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Answer:
we'll need a translator to get what you expressing