Answers
Answer:
Magnetism
Explanation:
The refrigerator doors are made of metal, and we use magnets to hold papers and photos on their surfaces. Magnets attract metals such as iron, cobalt, nickel, etc. That is due to the physical property of matter called magnetism, which is related to the attraction force generated by a magnetic field.
Related Questions
PLEASE HELP ME
How might a plant population be affected by the construction of a road through a forest? In your answer, consider how things such as pollution from automobiles, runoff from roadways, or an increase in sunlight might affect the plant populations that live in the forest.
Answers
Answer:
In addition to fragmenting habitat, constructing a road alters the habitat. When a road runs through a forest, it creates an edge habitat along the portion of the forest that fringes the road. ... Through altering the habitat and creating an edge, roads can impact animals even when direct mortality is not a result.
Explanation:
Describe the development of the zygote until implantation occurs.
Answers
A, b,c,d some pick and help me
Answers
Answer:
D
Explanation:
1. In Experiment 1, does adding an acid to a basic solution result in an acid or a base?
2. In Experiment 2, does adding an acid to a basic solution result in an acid or a base?
3. In which experiment is the acid added to a buffered base? How can you tell?
Answers
Acid and base are mixed to give salt and water. This process is exothermic in nature giving out heat called heat of neutralization which causes an increase in temperature.
So, these reactions can be explosive in nature when acid is added to any base and this raises the temperature of acid-base reactions.
HCl+NaOH→NaCl+H
"pH" is the negative of the logarithm of the hydrogen ion concentration, according to the simple Arrhenius definition of acids and bases. As a result, as the concentration of acid (hydrogen ions) increases, so does the pH value.
"Equal" acid-base ratios in solution require a more precise description. Varied concentrations in pure volumetric ratios can have extremely different equilibrium pH values.
If we interpret it as the common "equivalence point" where the acid and base components "neutralize," the resulting pH is in the "middle" - pH 7.0 - only when the acid and base are of equal relative strength in terms of dissociation, not concentration.
A strong base weak acid will have an equivalency point that is somewhat higher in pH than a weak base, strong acid.
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ASAP PLEASE HELPPP!!!!
A scientist wants to use a small plant that can take levels of pollutants, that would
kill other plants, into its body tissues to develop plants that will remove
contaminants from polluted ecosystems. Explain how this research requires an
understanding of genes.
Answers
This research requires an understanding of genes because the ability of a plant to take up and accumulate pollutants is often controlled by specific genes. Scientists can use genetic engineering techniques to identify and manipulate the genes that regulate a plant's ability to absorb and detoxify pollutants.
How this research requires an understanding of genes?Example, scientists may identify a gene that produces a protein that enables a plant to absorb heavy metals from contaminated soil. They can then use genetic engineering techniques to transfer this gene to other plant species, allowing them to also take up heavy metals from the soil.
Furthermore, understanding the mechanisms behind the expression of specific genes can help researchers to identify the most effective plant species and genetic modifications for remediating specific types of pollution. For example, some plants may be better suited for removing organic contaminants from water, while others may be more effective at absorbing heavy metals from soil.
Overall, genetic research plays a critical role in identifying the genes responsible for a plant's ability to take up and accumulate pollutants, and in developing new plant species that can help remediate contaminated ecosystems.
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The diagram below shows the structure of a mitochondrion.
eine
Which part of a mitochondrion does the letter B represent?
O A. Outer membrane
B. Matrix
C. Inner membrane
D. Cristae
Answers
Answer:
it's the outer membrane
Explanation:
because the outer membrane helps the mitochondrian with respiration
Which cell is unspecialized ?
Answers
Hope this helps!!!
The table shows data about abiotic factors of streams in two different watersheds.
In general, a stream with a lower temperature and more neutral pH tends to be healthier. Based on these
criteria, which watershed contains the healthier stream?
Select one:
Watershed 2
Both streams are equally healthy.
There is not enough data provided to answer the question.
Watershed 1
Answers
Answer: b
Explanation:
Based on these criteria, the watershed that contains the healthier stream is, that both streams are equally healthy. The correct option is B.
What are abiotic factors?An abiotic factor is a non-living component of an ecosystem that influences its surroundings. Temperature, light, and water are all components of the terrestrial environment.
Abiotic elements in a marine ecosystem include salinity and ocean currents. Abiotic and biotic forces interact to form a distinct ecosystem. Abiotic influences are found in all non-living components of an ecosystem.
They are often made up of both physical and chemical components. Abiotic factors are nonliving components of an ecosystem that influence the environment. Temperature, light, and water are among the examples. Abiotic elements in a marine ecosystem include salinity and ocean currents.
Therefore, the correct option is B. Both streams are equally healthy.
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HELP! NEED ASAP! 20 POINTS
Heart cells produce the protein cardiac myosin, which is critical in allowing for muscle contractions of the heart. Liver cells do not produce cardiac myosin.
Which statement explains this difference between heart cells and liver cells?
Heart and liver cells express different genes.
Heart cells rely on , R N A, , while liver cells rely on , D N A, .
Heart cells contain different genes from liver cells.
Liver cells destroyed the gene for myosin, but heart cells did not.
Answers
The most accurate statement that explains the difference between heart cells and liver cells in terms of their production of the protein cardiac myosin is "Heart and liver cells express different genes."
In multicellular organisms, different cell types have specific functions and characteristics that are determined by the genes they express. Genes are segments of DNA that contain the instructions for producing specific proteins. Each cell type expresses a unique set of genes that enable them to carry out their specialized functions.
In the case of heart cells and liver cells, they have different gene expression profiles. Heart cells specifically express the genes responsible for producing cardiac myosin, a protein essential for the contraction of the heart muscle. This allows the heart to effectively pump blood throughout the body.
On the other hand, liver cells do not express the genes for cardiac myosin production, as the liver has different functions unrelated to heart muscle contraction. The statement that heart cells contain different genes from liver cells is essentially expressing the same idea. Heart cells and liver cells have distinct gene expression patterns, leading to the production of different proteins and ultimately different cellular functions.
Both heart cells and liver cells utilize DNA as the genetic material that contains the genes responsible for protein production. RNA molecules are transcribed from DNA and play a crucial role in protein synthesis, but the distinction between heart and liver cells lies in the specific genes they express, not the reliance on different genetic materials.
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2. A cell membrane is made up of a(n)
Answers
Answer:
the cell membrane is made up of lipids :)
Which statement best describes why carbon atoms are uniquely suited to forming macromolecules such as those found in living organisms
Answers
The carvon atoms are the base of organic molecules because of it properties, that make it a backbone of most of the macromolecules found in living organisms. The statement that best describes those properties uniquely suited to those macromolecules is that carbon atoms form strong, stable bonds with up to four other atoms, including other carbon atoms.
what is the most accepted form of the scientific ideas
Answers
Answer:
paradigm
Explanation:
D. Proteins are made up of amino acids.
3. Which of the following are NOT functions of protein molecules in an animal?
A. Transportation between cells
B. Providing instructions for the rest of the cell
C. Building hair, skin, and nails
D. Communication between cells
Answers
Answer:
a
Explanation:
What is the answer to the screenshot below for 20 points
Answers
Answer:
The Ventral (anterior) trunk.
Explanation:
Generally speaking, the anterior/ventral ramus innervates the skin and muscle on the anterior aspect of the trunk.
!DISCLAIMER! I am not 100% sure on this.
how do the greenhouse gases affect glaciers?
Answers
Answer:
Green house gases affect glaciers because...
Explanation:
the heating of the earth because of the growing ozone layer (that is now layering greenhouse gases) is making the surface of the earth hotter which causes the sea to heat up and melt the glaciers which intern melts into the ocean and increases the sea level which cause flooding.
Hope this helps :)
Chemical changes result in a new substance, but keep in mind that no new atoms are created. Existing atoms rearrange as chemical bonds break and new bonds form. That’s what creates the new substance. For instance, rust on your bike can form after it rains. It forms from atoms in the rainwater, the steel of your bike and oxygen in the air. No new atoms are created that weren’t present before the change.
In the passage above, what is the purpose of the underlined sentence?
A
to give an example of how steel can physically change
B
to support the statement that no new atoms are created in a chemical change
C
to support the statement that rain can damage many materials
D
to give an example of how the weather can affect a person’s belongings
Answers
Answer:
B
to support the statement that no new atoms are created in a chemical change
Recently many of flordias citrus trees have been affected by a bacterial disease called citrus greening insects of a particular species that feed on citrus trees transmit the bacteria into the tree
Answers
Answer:
D
Explanation:
If you develop a tree that can resist bacteria and stay healthy you can eat it
( this is just my opinion but i believe this is correct)
2.2.1 2.2.2 State TWO possible advantages of using bananas as a vaccine against diseases. Give TWO reasons why people might be against the use of genetically modified bananas.
Answers
Advantages of using bananas as a vaccine against diseases: Oral Delivery, Cost-Effective Production.
Reasons why people might be against the use of genetically modified bananas: Safety Concerns, Moral Considerations.
1. Oral Delivery: Bananas can be consumed orally, making them an ideal vehicle for delivering vaccines. This eliminates the need for injections, which can be uncomfortable and require medical professionals to administer.
2. Cost-Effective Production: Bananas are relatively inexpensive to produce and are widely available in many parts of the world.
This makes them a cost-effective option for vaccine production and distribution, particularly in resource-limited settings.
Reasons against the use of genetically modified bananas as vaccines:
1. Safety Concerns: Some individuals may have concerns about the safety of genetically modified organisms (GMOs), including genetically modified bananas.
There may be uncertainties about the long-term effects of consuming GMOs, and fears of potential risks to human health and the environment.
2. Ethical and Moral Considerations: Opposition to genetically modified bananas may stem from ethical and moral concerns regarding the alteration of natural organisms.
Some people may view genetic modification as interfering with nature or raising questions about the boundaries of manipulating living organisms.
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What was the total maginification (25 points)
Answers
Answer:
a
Explanation:
All citizens of a small town vote on all town laws and ordinances. What type of government is this ?
Answers
what are three characteristics of life that archaea bacteria have?
Answers
Answer:
The common characteristics of Archaebacteria known to date are these:
(1) the presence of characteristic tRNAs and ribosomal RNAs.
(2) the absence of peptidoglycan cell walls, with in many cases, replacement by a largely proteinaceous coat.
(3) the occurrence of ether linked lipids built from phytanyl chains.
what is the maxium temperature reached when you combine 25 grams of zinc with hydrochloric acid?
Answers
Answer:
The approximate value for the maximum temperature reached during this reaction will be 87.1 °C (option E).
Explanation:
Zinc is a reactive metal so it will strongly react with the hydrochloric acid, which also is a strong acid and so it is highly reactive too. This will result in an exothermic reaction (one where heat is given off to the surrounding).
The products of this reaction will be hydrogen gas and aqueous zinc chloride (replacement reaction).
While dry cleaners are small businesses, they generate relatively large volumes of hazardous substances. EPA estimates the average dry cleaner generates 660 gallons of hazardous wastes a year. Unlike petroleum contamination which may break down over time by naturally-occurring bacteria in the environment, the chlorinated solvents that are used by dry cleaners are resistant to biodegradation. As a result, groundwater contamination from dry cleaners has a greater potential to migrate off-site which can be problematic since dry cleaners are often located within proximity to residential neighborhoods. Indeed, a 2002 Florida study found that dry cleaner contamination had migrated off-site at 57 percent of the contaminated sites. Due to these types of environmental hazards when commercial land is sold require a Phase 1 Environmental Assessment according to the Comprehensive Environmental Response, Compensation and Liability Act. Why would the type of monitoring required as part Phase 1 Environmental Assessments be important if a dry cleaner was being sold?
A) The monitoring will indicate any environmental damage done that should be remediated prior to selling the land.
B) This type of monitoring will allow the government to only sell land to businesses that have environmentally friendly practices.
C) The monitoring prevents the land from being resold to any dry cleaning businesses which can be damaging to the environment.
D) The monitoring will allow the government to determine which type of business is better for the environment so dangerous businesses can be closed.
Answers
Answer:B) This type of monitoring will allow the government to only sell land to businesses that have environmentally friendly practices.
Explanation: because will allow the government to only sell land to businesses that have environmentally friendly practices.
Which one of the following statements best explains why car tyres hore treads?
A To make them look more attractive
B. To increase friction between the car and the road surface
C. To make them look different from the tyres of other cars
D. To decrease friction between the car and the road surface
Answers
Answer:
d
Explanation:
to decrease friction in Wich to make it fast
How does an organism composed of relatively small cells have an advantage over one made of larger cells?
Answers
The surface area-to-volume ratio of a cell diminishes with growth. If the cell were in the form of a cube, the same reasoning would hold true. The plasma membrane won't have enough surface area if the cell enlarges too much to accommodate the volumetric rise in diffusion rate.
In other terms, a cell gets less effective as it develops. One technique to increase efficiency is to divide, while another is to create organelles with specific functions. Smaller single-celled creatures have a high surface-to-volume ratio, which enables them to rely on material and oxygen diffusion into the cell (and waste diffusion out) to survive. This method can be more effective if the objects have a larger volume to surface area ratio. Larger animals need specialized organs (such as the lungs, kidneys, and intestines) that efficiently increase the surface area accessible for exchange activities, as well as a circulatory system to transport materials and heat energy between the organism's surface and core.
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The satellite photo below shows San Francisco, California, which has many miles of coastline and an inland bay. Which area of the coastline has most likely experienced the greatest effect of erosion from waves over hundreds of years? '
A. Area N B. Area P C. Area S D. Area T
Answers
Area S is region which experienced more erosion from waves due to its presence on the bank of ocean.
ErosionArea S is the area of the coastline that is most likely experienced the greatest effect of erosion from waves over hundreds of years because area S is located on the coastline of pacific ocean. Those areas which are located on the bank of ocean experience more erosion due to waves.
This is because the waves continuously hitting the land as compared to those regions which experience less erosion due to less hitting of waves so we can conclude that area S is region which experienced more erosion from waves due to its presence on the bank of ocean.
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Are Radar waves used to re-heat and cook food?
Answers
Answer:
I think it would be yes
Explanation:
Microwaves and infrared waves can heat up food but does not make food radioactive. The waves cause vigorous vibration of molecules in food resulting in high temperature that cooks the food.hope this helps if not let me know.
 a model of a change to the double strand of DNA molecule is shown here based on the illustration what describes the type of change and the effects of the change in the model of DNA select all answer choices that apply 
Answers
search sailesh xettri on messenger
Explanation:
bike pic guy
42. the primary motor cortex is arranged such that neurons near one another send signals to areas of muscles that are close to each other. this arrangement illustrates the:
Answers
The notion of topographic organisation is illustrated by the primary motor cortex's configuration, which allows neurons that are close to one another to communicate with adjacent regions of the muscle tissue.
What is primary motor cortex?At the primary motor cortex, motor representation is neatly structured (inverted) along a fold in the cortex known as the central sulcus, running from the toe (at the top of the cerebral hemisphere) to mouth (at the bottom).
Particular cortical regions may, however, govern some body parts in a somewhat overlapping manner. Before the start of a movement, primary motor cortex neurons fire 5 to 100 ms in advance. These neurons are therefore engaged in relaying motor orders to the alpha motor neurons, which in turn cause the proper muscles to contract, rather than firing as a result of muscular activation.
Therefore, The notion of topographic organisation is illustrated by the primary motor cortex's configuration, which allows neurons that are close to one another to communicate with adjacent regions of the muscle tissue.
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Can anyone help me with question 1 and 2 ?
Answers
Answer:
A is the substrate and B is the protein
Explanation:
Substrate: thing that is the initial part of a protein reaction
B is the thing that MODIFIES the substrate, the protein.