Paige turns on an electric space heater in the center of her bedroom. The coils glow, and the room becomes warmer. How is heat reaching the corners of Paige's bedroom?
Answers
Think of it this way. Osmosis occurs when water flows to a different side given its a membrane or not. This is because it flows to a less dense area to reach equilibrium between the two sides. Heat is very similar. It will try to spread to places where there is not as much heat. Keeping the laws of heat travels up, the heat from the coils will reach the ends. We call this "Thermal Equilibrium"
Related Questions
Using your knowledge of meiosis and mitosis,
Answers
Answer:
just see explainxgzxfdtitithhsfai
The number of fatty acids chains present in a molecule of a
phospholipid is _
Answers
The molecule of phospholipid contains two fatty acid molecules linked to -OH groups and a nitrogen-containing base bound to the phosphate group.
Phospholipids are a class of lipids whose molecule has a hydrophilic head containing a phosphate group and two hydrophobic tails derived from fatty acids, joined by an alcohol residue.
Thus, it has a strongly non-polar and hydrophobic tail consisting of fatty acid chains and a polar and hydrophilic head comprising a negatively charged phosphate group and a positively charged base. Because of this dual solubility, the phospholipids are called AMPHIPHATIC lipids.
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How does evolution play a role in stability of an ecosystem
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Evolution plays an active role in the stability of an ecosystem by rescuing the species from extinction with the help of natural selection.
What is Evolution?Evolution may be defined as a complete methodology that deals with the gradual change over many generations. Due to this, the number of species of animals, plants, or insects slowly changes according to the environment and modifies their physical characteristics.
In the ecosystem, each and every species must remain until it can get resources even in small amounts as well but it has under the process of extinction once resources are restricted.
During this period, species perform all possible events and modify their characteristics in order to survive in the ecosystem. These modifications are the attributes of evolution.
Therefore, evolution plays an active role in the stability of an ecosystem by rescuing the species.
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Who is given credit for the basic design of the periodic table of the elements?
John Dalton
Gregor Mendel
Dmitri Mendeleev
Ernest Rutherford
Answers
Answer:
the answer is C Dmitri Mendeleev
Explanation:
an advantage to having ether-linked membrane lipids is that ether links choose one: a. use less cellular carbon, saving energy. b. allow cyclic rings to form. c. do not require an enzyme to form. d. are more stable and less likely to break.
Answers
An advantage to having ether-linked membrane lipids is that ether links are more stable and less likely to break.
Ether lipids are a distinct kind of glycerophospholipids that have an ether bond connecting an alkyl chain to the sn-1 position. In ether lipids, the alcohol moiety linked to the phosphate group is typically choline or ethanolamine, though inositol or serine have also been noted on occasion.
Because archaeal membranes naturally function in a wide range of temperatures, they typically do not need to modify their lipid composition to temperature changes in the same way that bacteria do.
The ether-linkage gives the membrane increased chemical stability. The side chains themselves, which are unbranched fatty acids in bacteria and eukaryotes and isoprenoid chains in archaea, account for the third and fourth differences. Branching side chains may be present in these isoprenoid chains.
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Click the draw structure button to launch the drawing utility. Draw the product of the following reaction
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An alkane with two less carbons than the initial substance is the end result of the reduction reaction.
Click the "draw structure" button to start the drawing tool and draw the structure. Add two less carbon atoms to the beginning material using the drawing tool, being sure to connect the hydrogen atoms to the carbon atoms to create an alkane. The delocalization of electrons within a molecule or ion between two or more adjacent atoms with the same connectivity is referred to as resonance in chemistry. When the electronic structure of a molecule or ion can be described by two or more equivalent resonance structures, also known as Lewis structures, that only differ in the arrangement of electrons, resonance has occurred.
Make sure the hydrogen atoms in the product structure are coupled to the carbon atoms since reduction reactions typically entail adding hydrogen atoms or taking them away.
The product's structure is finished once all of the atoms are suitably joined.
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we saw that signaling based on channel-linked receptors is the fastest signaling mechanism. why is this faster than other mechanisms?
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Signaling based on channel-linked receptors is the fastest signaling mechanism because it involves direct communication between the receptor and the target cell.
The receptor binds with the ligand, which opens the ion channel, allowing ions to pass through. This rapid transmission of ions causes an electrical signal to be transmitted along the cell membrane to the target cell, allowing the signal to be processed quickly.
Other mechanisms, such as second messenger systems, involve more steps and thus take longer to complete.
In a second messenger system, the ligand binds to the receptor, causing a conformational change in the receptor and activating an enzyme, which in turn activates a second messenger molecule.
This second messenger molecule then binds to and activates a different enzyme, leading to a response in the target cell. This process takes significantly more time than the channel-linked receptor mechanism and therefore is not as fast.
In summary, signaling based on channel-linked receptors is faster than other mechanisms because it involves direct communication between the receptor and the target cell, eliminating the need for the multiple steps of a second messenger system. This direct transmission of ions results in a faster response in the target cell.
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Which of the following situation demonstrates a physical change
Answers
Answer: c melting ice
Explanation:
Imagine you are in space and there are no other objects around you. What is your weight?
a little more than on Earth
an infinite amount of weight
a little less than on Earth
absolutely zero
Answers
Answer:
Absolutely zero
Explanation:
because there's no gravity in space and gravity is what keeps us on the ground.
Corals, and the zooxanthellae algae they contain, form the base of a coral reef ecosystem. Organisms like sea urchins feed on microorganisms that grow on the corals. Organisms including seahorses feed on plankton and fish that also inhabit the reef. Larger animals like sea turtles frequently enter the reef to forage. Seaweeds, which are competitors of corals, may grow along the reef bottom. The biodiversity in a coral reef ecosystem can be changed by both natural and human acitivies. What is a natural factor that would most likely decrease the ecosystem's biodiversity? A. a decrease in the level of inbreeding in several seahorse populations in the reef B. a sudden increase in the harvesting of corals, which decreases the coral population in the reef C. the immigration of several new populations of sea urchins into the reef D. the overgrowth of a population of seaweed, which prevents light from reaching the reef
Answers
The natural factor that would most likely decrease the ecosystem's biodiversity is D. the overgrowth of a population of seaweed, which prevents light from reaching the reef
What is ecosystem's biodiversity?The term "biodiversity" refers to the range of ecosystems (natural capital), species, and genes found around the globe or in a specific environment. Given that it provides the services that keep our economies and society alive, it is crucial to human wellbeing.
The ecosystem diversity is the diversity of ecosystems within a given geographic area and how that diversity affects both the environment and human life in general. The combined qualities of biotic and abiotic properties are addressed by ecosystem diversity.
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which of the following adaptions allowed plants to transport water and nutrients from the soil to all of the cells within the plant?
A. Vascular system
B. Leaves
C.Cuticle
D. circulatory system
Answers
Answer:
c
Explanation:
I took the test
Answer:
D. circulatory system
Explanation:
Circulatory system is the method of transport of plants and animals. It gives the plants nutrients and carbon dioxide in every cell and release waste products from their system.
which of the following is not a change that may be caused by hormonal stimulus? group of answer choices a change in membrane potential stimulation of mitosis an increase in enzyme synthesis direct control of the nervous system
Answers
Out of the given options, direct control of the nervous system is not a change that may be caused by hormonal stimulus.
Hormones are chemical messengers produced by endocrine glands that regulate various physiological processes in the body. Hormonal stimuli can elicit a range of responses and changes in target cells and tissues. However, direct control of the nervous system is not typically one of them. Hormonal stimuli commonly lead to changes such as altering the membrane potential of cells, stimulating mitosis (cell division), and influencing enzyme synthesis. For example, certain hormones can bind to specific receptors on cell membranes, leading to changes in ion channel activity and subsequent changes in the cell's membrane potential. Hormones can also regulate the cell cycle and stimulate mitosis, promoting cell growth and tissue development. Additionally, hormones often play a crucial role in regulating enzyme synthesis and activity, influencing various metabolic pathways.
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Which is an abiotic factor?
O A) fungi and moss on a rotting log
O B) a forest of deciduous trees
O C) a polar bear on an ice floe
O D) an ocean current of cold water
Answers
Answer: Abiotic to me means Inanimate.
Explanation: D
where do we find chloroplast and chromoplast in hebiscuis
Answers
Answer:
Explanation:Chloroplasts are present in the cells of all green tissues of plants and algae. Chloroplasts are also found in photosynthetic tissues that do not appear green, such as the brown blades of giant kelp or the red leaves of certain plants. In plants, chloroplasts are concentrated particularly in the parenchyma cells of the leaf mesophyll (the internal cell layers of a leaf).
A certain breed of mouse was introduced onto a small island with an initial population of 370 mice, and scientists estimate that the mouse population is doubling every year. (a) Find a function N that models the number of mice after t years.
Answers
A certain breed of mouse was introduced onto a small island with an initial population of 370 mice and scientists estimate that the mouse population is doubling every year. Thus ,the function N which estimate the population of mouse after 2 years is N(t)=370x2^t.
Derivation of function N which estimate the population of mouse after t years.Let us assume that the function is N(t) that describe the population.
So N(t) = a(b)^t
Where a is intial population of mouse which is given that 370.
Since population is doubling every year then b =2 .
So above equation becomes as follows-
N(t)= a(2)^t
And as initial population is 370.
Then function is
N(t)=370(2)^t.
Therefore, a certain breed of mouse was introduced onto a small island with an initial population of 370 mice and scientists estimate that the mouse population is doubling every year. Thu ,the function N which estimate the population of mouse after 2 years is N(t)=370x2^t.
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the diffusion of water across a tubule is driven by differences in ________ across the membrane.
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The diffusion of water across a tubule is driven by differences in osmotic pressure across the membrane. Osmotic pressure is a measure of the tendency of water to move from an area of lower solute concentration to an area of higher solute concentration.
When two solutions of different solute concentrations are separated by a membrane, the higher concentration solution will have a higher osmotic pressure than the lower concentration solution. This difference in osmotic pressure is called the osmotic gradient.
When the membrane is permeable to water, water will move from the side with the lower osmotic pressure to the side with the higher osmotic pressure, creating an equilibrium. This process is known as osmosis, and it is what drives the diffusion of water across a tubule.
The diffusion of water across a tubule is also affected by the permeability of the membrane, which determines the rate at which water can pass through the membrane. The osmotic gradient is the driving force behind the diffusion, while the permeability of the membrane determines the rate at which the diffusion occurs.
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What might you conclude if Ernest's PTH levels are within normal limits (not too high or not too low)? Explain your answer.
Answers
Answer:
Normal level of calcium in the blood.
Explanation:
The normal range of PTH levels means that there is normal amount of calcium is present in the blood. If the PTH level is too high it means that the levels of calcium in the blood is very low while on the other hand, if the levels of PTH is low it means that the level of calcium in the blood is too high so that's why normal range of PTH level means normal level of calcium in the blood.
Explain how organ transplants trigger an immune
response. Use keywords (immunosuppressants, organ
transplants, foreign, attack)
Answers
Because the transplanted organ is perceived as foreign by the recipient's immune system, organ transplants elicit an immune reaction.
The immune system's duty is to defend the body against alien substances such as bacteria or viruses, and it recognizes the transplanted organ as a foreign entity that must be attacked.
This immune response is the body's natural defense system, and it includes the activation of immune cells such as T-cells and B-cells that recognize the foreign organ and attempt to attack it.
This can lead to the transplanted tissue being rejected, which can be fatal for the recipient.
Patients who receive organ transplants are frequently given immunosuppressants, which are drugs that suppress the immune system's response to foreign substances, to avoid rejection.
These medications work by suppressing the immune system, making the body less likely to assault the transplanted organ.
Immunosuppressants can help prevent organ rejection, but they also raise the risk of infections and other complications.
As a result, patients who receive organ transplants must be carefully monitored and receive ongoing medical care to ensure that the transplanted organ is functioning correctly and that the immunosuppressants are not causing any adverse effects.
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During __ cell become specialized to peform certain functions
Answers
Cell differentiation is how generic embryonic cells become specialized cells. This occurs through a process called gene expression.
1. Write the chemical equation for water.
Answers
Answer:
2 hydrogens and 1 oxygen to make H20
Explanation:
what values were affected by simulated airway obstruction, and why?
Answers
Simulated airway obstruction affects various physiological values due to the restricted airflow and reduced oxygen supply to the body. The primary values impacted include tidal volume, minute ventilation, partial pressure of oxygen (PaO2), partial pressure of carbon dioxide (PaCO2), and respiratory rate.
Tidal volume (TV) refers to the volume of air inhaled and exhaled with each breath. In cases of airway obstruction, TV decreases as airflow resistance increases, making it more difficult to inhale and exhale sufficient air. Consequently, this affects the exchange of gases in the alveoli, leading to abnormal oxygen and carbon dioxide levels in the blood.
Minute ventilation (MV) is the volume of air exchanged in one minute. Due to reduced TV, MV also declines in airway obstruction scenarios. This contributes to the imbalance in oxygen and carbon dioxide levels, as the respiratory system struggles to maintain adequate gas exchange.
Partial pressure of oxygen (PaO2) and carbon dioxide (PaCO2) represent the pressures exerted by these gases in arterial blood. When airway obstruction occurs, PaO2 decreases due to limited oxygen intake and poor gas exchange, potentially leading to hypoxemia. Conversely, PaCO2 may increase, as the impaired exhalation of carbon dioxide results in its accumulation, potentially causing hypercapnia.
Finally, the respiratory rate may be affected as the body attempts to compensate for reduced TV and MV. To maintain sufficient oxygen levels, the rate of breathing may increase, resulting in rapid, shallow breaths. However, if the obstruction is severe, the respiratory rate may become irregular or labored.
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describe the adaptations of the vertebral column for both bipedal primates and nonbipedal primates.
Answers
The vertebral column, also known as the spine, is a crucial part of the skeletal system that supports the body and protects the spinal cord. The adaptations of the vertebral column vary between bipedal and nonbipedal primates.
Bipedal primates, such as humans, have an S-shaped curve in their spine that allows for weight distribution between the pelvis and lower limbs. The lumbar region is enlarged and the sacrum is wider, providing stability for upright walking and running.
Additionally, the cervical region of the spine has adapted to support the weight of the skull in an upright position.
Nonbipedal primates, such as chimpanzees, have a C-shaped curve in their spine that allows for flexibility in climbing and swinging from trees.
The lumbar region is shorter and less stable, allowing for greater mobility in the spine. The cervical region is also adapted for mobility to allow for greater range of motion in the head and neck.
Overall, the adaptations of the vertebral column in primates reflect their differing modes of locomotion and environments, with bipedal primates having a more stable and supportive spine for upright walking and nonbipedal primates having a more flexible spine for climbing and moving through trees.
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The vertebral column, or backbone, plays an important role in supporting the body and protecting the spinal cord. Primates have adapted their vertebral column to suit their specific modes of locomotion.
Bipedal primates, such as humans, have several adaptations in their vertebral column that allow them to walk upright on two legs. One of the most significant adaptations is the development of a lumbar curve, or lordosis, which helps shift the weight of the upper body over the hips and legs. The lumbar vertebrae are also larger and more robust than those of nonbipedal primates, to better support the weight of the upper body. The sacrum, which connects the vertebral column to the pelvis, is wider and flatter in bipedal primates, providing a stable base for walking. In addition, the positioning of the foramen magnum, the hole through which the spinal cord enters the skull, is shifted forward in bipedal primates, allowing the head to be balanced over the body.
Nonbipedal primates, such as monkeys and apes, have adaptations in their vertebral column that allow them to climb, swing, and move through trees. These adaptations include a flexible spine with many small vertebrae, allowing for a wide range of motion, and a long tail for balance. The lumbar curve is less pronounced in nonbipedal primates, and the sacrum is narrower and more curved to allow for greater mobility. The foramen magnum is positioned further back on the skull, allowing for greater flexibility and range of motion in the neck.
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Explain the relationship between the polarity of water and solubility.
Answers
Answer:
Polarity. ... Polarity plays a pivotal role in solubility. A polar solute will dissolve in a polar solvent whereas a non-polar solvent will dissolve in a non-polar solvent. If we put a polar solute in a non-polar solvent, it will not dissolve.
Explanation:
The relationship between the polarity of water and solubility is that the polarity of the water determines its solubility capacity.
Polarity is a property of molecules that represents the separation of electrical charges within the molecule, it can be polar or apolar.
Polarity determines whether a substance is soluble or not soluble in water.
Solubility is the measure of the ability of a certain substance to dissolve in another.
Water is a polar molecule due to the spatial arrangement of its polarized bonds.
This polarity determines that the molecules interact strongly.
The solubility of most nonpolar substances in water is very small, since the water molecule is polar, therefore, they will not be able to interact with each other.
For example, oil is not soluble in water, due to the polarity of the water molecules, which is higher than those of oil.
This is because the attraction between the particles of the nonpolar solute (oil) and the polar solvent (water) are not sufficient to cause the dissolution process.
Therefore, we can conclude that the polarity of molecules is a property that is directly related to solubility.
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Please help me... I really need it
Answers
Answer:
B is correct option
Explanation:
Mosses plants that need full sun.THANKS
where do the small molecules like water pass through the membrane?
Answers
Answer:
Water is transported across the membrane by the aquaporin (AQP) family of passive channels.
Explanation:
ok is that the answer you are looking for?
A given organism has 23 pairs of homologs in its karyotype. Therefore, we can conclude that it must have gametes with 23 chromosomes
Answers
It is TRUE that a given organism has 23 pairs of homologs in its karyotype. Therefore, we can conclude that it must have gametes with 23 chromosomes.
In diploid organisms, such as humans, the karyotype refers to the complete set of chromosomes in the nucleus of a cell. Humans have 23 pairs of homologous chromosomes, which means that there are two copies of each chromosome, one inherited from each parent. During meiosis, the process by which gametes (sperm and eggs) are produced, the chromosome number is reduced by half. In humans, this means that the gametes have 23 chromosomes, which is half the number of chromosomes in a diploid cell. When a sperm and an egg fuse during fertilization, the resulting zygote will have a full complement of 46 chromosomes, with 23 chromosomes contributed by each parent.
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The actual question is:
True, or False
A given organism has 23 pairs of homologs in its karyotype. Therefore, we can conclude that it must have gametes with 23 chromosomes.
in the last few decades, the use of antibiotics and antibacterial cleaning products has increased. what consequences are being seen now as a result of the overuse or misuse of antibiotics?
Answers
consequences of the overuse or misuse of antibiotics.
Sir Alexander Fleming first mentioned the issue of antibiotic misuse in 1945 when he predicted that "the public would desire [the medicine] and thereafter usher in an era of excesses." Antibiotic usage undoubtedly promotes the emergence of resistance. Epidemiological research has shown a link between the use of antibiotics and the establishment and spread of resistant bacterial species. Genes in bacteria can be inherited from close relatives or acquired from unrelated individuals via mobile genetic components like plasmids. Through this horizontal gene transfer (HGT), antibiotic resistance may spread between several bacterial species.Additionally, resistance can evolve on its own through mutation. Drug-sensitive rivals are eliminated by antibiotics, leaving drug-resistant microorganisms remaining to proliferate through natural selection. Worldwide, antibiotics are overprescribed despite warnings against overuse.To know more about Antibiotic visit : https://brainly.com/question/17988226
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Which statement best describes the effect of the low density of frozen water in a lake
Answers
Answer:
Explanation
Water in a lake freezes from the bottom up, killing most aquatic organisms. When water in a lake freezes, it floats, providing insulation for organisms below. ... If water were most dense as a solid, lakes would freeze from the bottom up, eventually freezing solid.
Answer:
When water in a lake freezes, it floats, providing insulation for organisms below.
Explanation:
what forces cause surface ocean circulation? what forces cause deep water circulation?
Answers
Answer:
ANS 1) Ocean currents can be caused by wind, density differences in water masses caused by temperature and salinity variations, gravity, and events such as earthquakes or storms. Currents are cohesive streams of seawater that circulate through the ocean.
ANS 2)n the deep ocean, the predominant driving force is differences in density, caused by salinity and temperature variations (increasing salinity and lowering the temperature of a fluid both increase its density). There is often confusion over the components of the circulation that are wind and density driven.
HOPE IT HELPS : D PLEASE MARK ME BRAINLIEST
Explanation:
Straw is an agricultural byproduct consisting of the dry stalks of cereal plants after the grain and chaff have been removed. It makes up about half of the yield of cereal crops such as barley, oats, rice, rye and wheat. It has a number of different uses, including fuel, livestock bedding and fodder, thatching and basket making
How would the supply of straw be affected by an increase in the price of wheat?
A) Movement up and to the right on the supply curve
B) Movement down and to the left on the supply curve
C) Supply increases
D) Supply decreases
Answers
An increase in the price of wheat would lead to a decrease in the supply of straw. This is because farmers would allocate fewer resources to the cultivation of other cereal crops, reducing the production of straw as a byproduct. Therefore, the correct answer is D) Supply decreases.
An increase in the price of wheat would affect the supply of straw by decreasing it. When the price of wheat rises, farmers have a greater incentive to allocate more resources towards growing wheat rather than other crops. Since straw is a byproduct of cereal crops like barley, oats, rice, rye, and wheat, an increase in the price of wheat would lead farmers to focus more on producing wheat, reducing the production of other cereal crops.
As a result, the supply of straw would decrease because farmers are allocating fewer resources to the cultivation of crops that generate straw as a byproduct. This decrease in supply would be represented by a movement down and to the left on the supply curve, as less straw would be available at each price level.
To illustrate this, consider a hypothetical scenario where the price of wheat increases. Farmers, motivated by higher profits, would shift their production towards growing more wheat. This would result in less land, labor, and resources being allocated to other cereal crops, ultimately reducing the overall production of straw. Consequently, the supply curve for straw would shift to the left, indicating a decrease in the quantity of straw supplied at each price level.
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