Give an example of the law of conservation of mass.
If ur correct i'll give brainliest.

The first to occur when a motor neuron stops sending an impulse to a muscle is the pumping of calcium ions out of the cytoplasm and back into the sarcoplasmic reticulum.

When a nervous impulse stops, these things happen:

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Answer:

The answer is C

Answer:

Mushroom corals also ingest plastic particles, with a higher probability of retaining biofouled plastics, possibly because plastic that has been in the marine environment long enough to be colonized by micro- and macro-organisms becomes more palatable to corals.

The skeletal muscles of the cat are comparable to those of many other species, including humans.

Some of the most well-known skeletal muscles are the forearms, biceps, gluteal muscles, deltoids, and trapezius. A cat's skeleton contains 517 muscles.  A cat's ears have 32 musculature.

The Bengal, an exotic hybrid that is the most powerful cat in terms of endurance and physical strength, is one of the strongest cats. It was developed as a cross between the Egyptian Mau and other domestic cats, as well as the Asiatic leopard cat.

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DNA from generations 0 and 2 can be separated based on size and density by centrifuging a combination of the two.

Depending on their size and density, the DNA fragments will move towards the bottom of the tube during centrifugation at various rates. The smaller, less dense fragments will settle at the tube's bottom after the larger, denser fragments. As a result, based on their size and density, the DNA fragments from generation 2 will be distinguished from the fragments from generation 0. The genetic mechanisms underlying these changes in DNA over successive generations, such as mutations and size variations, can be understood using this distinction.

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Answer:D

Explanation:

Charles Darwin's most significant contribution to the study of biology was his proposal of the theory of natural selection as the primary mechanism of evolution. In his book "On the Origin of Species," published in 1859, Darwin presented a substantial body of evidence showing that species change over time and that natural selection, acting on variations within populations, is the main cause of evolutionary change. Hence option D is correct.

Natural selection is a mechanism of evolution that occurs when individuals with certain heritable traits are more likely to survive and reproduce than those without those traits. This results in a gradual change in the characteristics of a population over time.

The process of natural selection occurs because of variation within a population. Individuals that possess traits that are advantageous in their particular environment, such as better camouflage, faster running speed, or stronger immune systems, are more likely to survive and produce offspring that inherit those beneficial traits.

On the other hand, individuals with traits that are less advantageous are less likely to survive and pass on their genes to the next generation.

Although Darwin did propose the idea of inheritance of acquired traits, he later recognized that this mechanism was not significant in evolution. Darwin's work was a significant turning point in the study of biology, and his theory of evolution by natural selection has since become the foundation of modern biology.

Hence option D is correct.

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Polar orbiting satellites travel in a path that passes over the Earth's polar regions. These satellites typically orbit at a relatively low altitude of a few hundred kilometers (around 500–800 km) and complete one orbit of the Earth in about 90–120 minutes.

Polar-orbiting satellites are used for a variety of purposes, including remote sensing, weather forecasting, and scientific research. Because they pass over the Earth's poles, they are able to provide global coverage of the Earth's surface, including regions that are difficult to access by other means. Polar orbiting satellites can also provide information on the Earth's atmosphere, including temperature, humidity, and other atmospheric variables, which is important for weather forecasting and climate research.

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Answer:

The awnser is Neptune

Explanation:

LIquid nitrogen has a temperature of -320 °F The average temperature on Neptune is around -373 degrees °F, where as Jupiter's average temperature is -238 degrees °F, and Saturn's average temperature of about -285    degrees °F Making Neptune the only planet possible to have liquid nirtogen geysers

Answer: exocytosis

Explanation:

- When molecules are too large or too charged to cross the plasma membrane by diffusion or osmosis, they use vesicular transport, also known as exocytosis. In vesicular transport/exocytosis, vesicles allow large molecules to exit the cell because the vesicle fuses with the plasma membrane and its contents spill out.

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Extracellular fluid (ECF) refers to the fluid found outside the cells in the body. It accounts for about one-third of the total body fluid. Extracellular fluid includes substances including cerebral fluid, plasma, and synovial fluid.

True. Extracellular fluid includes substances including cerebral fluid, plasma, and synovial fluid. Extracellular fluid refers to the fluid found outside the cells in the body, including the interstitial fluid (found between cells in tissues) and various specialized fluids like plasma (found in blood vessels), synovial fluid (found in joints), and cerebrospinal fluid (found in the central nervous system). These fluids play important roles in maintaining the balance of nutrients, electrolytes, and other substances necessary for proper physiological functioning.

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Answer:

Pretty sure It's B

Explanation:

When the information is crossed, it is no longer the original one of either, and then it gets broken down, and made into 2, so Yeah. Plus I did this topic in school last year I think

What are limiting factors and how do they affect populations?

In the natural world, limiting factors like the availability of food, water, shelter and space can change animal and plant populations. Other limiting factors, like competition for resources, predation and disease can also impact populations.

Muscle movement and breathing play crucial roles in aiding venous blood return to the heart. When muscles contract during movement, they exert pressure on veins, effectively squeezing them.

This compression helps push the blood forward, overcoming the resistance caused by gravity and one-way valves in the veins.

During inhalation, the diaphragm contracts and moves downward, while the intercostal muscles between the ribs expand the chest cavity. This expansion creates a negative pressure within the thoracic cavity, causing a decrease in pressure within the thoracic veins. The pressure difference between the veins and the right atrium of the heart promotes venous blood flow towards the heart.

Simultaneously, as the diaphragm descends, it compresses the abdominal veins, aiding blood flow towards the heart. Upon exhalation, the reverse happens, but the muscle movements during respiration create a pulsatile action that assists in propelling venous blood back to the heart.

In summary, muscle movement and breathing enhance venous blood return to the heart by creating pressure differentials and compressing veins, promoting forward flow and overcoming gravitational forces.

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According to the given passage, viruses are not living because they (C) do not have a cellular organization.

Viruses lack a cellular organization which is a basic feature of all living organisms. A virus is a nucleoprotein, with the genetic material enclosed by a protein coat. The genetic material could be either DNA or RNA. The genetic material is responsible for causing infection in the host.

Viruses are inactive outside their specific host cell. They are non-cellular organisms. They possess an inert crystalline structure outside the living host cell. The protein coat of a virus, i.e. capsid, serves as a protective covering for the genetic material.

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The statement that an organism does not have to continuously adapt if it's already successful in its environment is proven false by Charles Darwin's theory of evolution by natural selection.

Charles Darwin's theory of evolution by natural selection provides ample evidence to refute the claim that organisms do not need to continuously adapt if they are already successful in their environment. According to Darwin, the process of natural selection leads to the adaptation and evolution of species over time.

Natural selection operates on the principle that individuals within a population vary in their traits, and those with traits that are advantageous for their environment are more likely to survive and reproduce. This means that successful organisms are those that possess beneficial adaptations that enable them to thrive in their specific environment.

However, environments are not static; they undergo changes over time. This means that what was once a successful adaptation may become less advantageous or even detrimental in a changed environment. Organisms that fail to adapt to these changes may struggle to survive and reproduce, leading to a decline in their population or even extinction.

Therefore, Darwin's theory emphasizes that continuous adaptation is necessary for organisms to maintain their success in changing environments. Those that fail to adapt may be outcompeted by others with more favorable traits, ultimately leading to the persistence and dominance of the better-adapted individuals and species.

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Answer:

Explanation:Flowing water creates energy that can be captured and turned into electricity.The most common type of hydroelectric power plant uses a dam on a river to store water in a reservoir. Water released from the reservoir flows through a turbine, spinning it, which in turn activates a generator to produce electricity.

Answer:

Water can be used in a lot of ways, let say that you have a big paddle by a raging river next to you to power your home, this paddle can keeping continuously moving to power that home based off how much that river is going. This is one way that water can be used to make electricity. Hope this helps, Merry Christmas, and have a nice day!

Explanation:

Answer:

Molecules naturally disperse from areas of higher concentration to lower concentration.

As oxygen-rich (and carbon dioxide-poor) blood travels by a cell the oxygen diffuses through the cell membrane to the area of lower concentration inside the cell. It can do this easily because the oxygen molecule (O2) is very small and has no charge or polarity. The oxygen is used up rapidly by mitochondria. This rapid consumption causes oxygen to constantly move into the cell from the blood.

The mitochondria creates carbon dioxide (CO2) as a waste product of cellular respiration (the process that makes energy for your body). Because the CO2 is of a higher concentration in the cell than in the blood passing by, this gas continually diffuses out of the cell. It too is small and uncharged so it can pass through cell membranes easily.

These movements require no energy (in the form of ATP) on behalf of the cell.

Explanation:

Answer: sucrose is not a reducing sugar

Explanation: Benedict solution is used to test for the presence of reducing sugar. Sucrose is a non-reducing sugar unlike maltose and lactose which are reducing sugars thus there is no color change when Benedict solution is added to it.

The process that occurs at the ribosome is called translation. It involves decoding the mRNA (messenger RNA) molecule and covalently linking amino acids together to form a protein. Translation is a crucial step in gene expression, where the genetic information encoded in the mRNA is converted into a functional protein.

The process of translation occurs at the ribosome, which is a cellular organelle responsible for protein synthesis. It involves the decoding of the mRNA molecule by transfer RNA (tRNA) and the covalent linking of amino acids together to form a polypeptide chain, which ultimately folds into a functional protein.

The ribosome reads the sequence of nucleotides in the mRNA molecule and matches them with complementary anticodon sequences carried by tRNA molecules. Each tRNA molecule is attached to a specific amino acid, and as the ribosome moves along the mRNA molecule, it catalyzes the formation of peptide bonds between adjacent amino acids, creating a growing polypeptide chain.

This process continues until a stop codon is reached, signaling the termination of translation and the release of the newly synthesized protein. The ribosome plays a central role in the translation process, ensuring accurate and efficient protein synthesis within the cell.

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The approximate fat mass in kilograms for an individual weighing 155 pounds with a body fat percentage of 16% is around 11.25 kilograms.

To calculate the mass of fat in kilograms, we need to convert the person's weight from pounds to kilograms and then calculate the fat mass using the body fat percentage.

First, we convert 155 pounds to kilograms. Since 1 pound is approximately 0.4536 kilograms, we multiply 155 by 0.4536, which equals 70.31 kilograms.

Next, we calculate the fat mass using the body fat percentage. A body fat percentage of 16% means that 16% of the person's weight is composed of fat. Therefore, we multiply 70.31 by 0.16 to find the mass of fat, which is approximately 11.25 kilograms.

So, the mass of fat in kilograms for a person weighing 155 pounds with 16% body fat is approximately 11.25 kilograms.

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Answer:

the answer is 4

Explanation:

i dont know how to explain it but i took the test and it was right.

The car with the greatest applied force is : ( D ) Car 4

Given that :

Force applied is calculated as : Mass * acceleration

For Toy car 1

mass = 0.19

acceleration = 0.15

Force = 0.19 * 0.15 = 0.0285 N

For Toy car 2

mass = 2.0

acceleration = 1.5

Force = 2 * 1.5 = 3 N

For Toy car 3

mass = 0.25

acceleration = 0.21

Force = 0.25 * 0.21 = 0.0525 N

For Toy car 4

mass = 2.5

acceleration = 3

Force = 2.5 * 3 = 7.5 N

From the answers above the car with the greatest applied force is car 4 with a force of 7.5 N

Hence we can conclude that The car with the greatest applied force is : ( D ) Car 4

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Answer:

Today I learned some interesting things about volcanoes. The hot, dangerous, lava comes out of the top of the volcano, where it can sometimes explode. The lava can be sticky, or runny. These things cause a lot of damage but can help sometimes as well.

Explanation:

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here this might help

Today i Learned cool facts about volcanoes! The hot dangerous liquid called lava it comes out of the top on rare occasions the volcano erupts The red lava can be tacky or watery . lava causes a lot of damage although I found out that it  sometimes can help out in some ways.

When the gravitational pull of the Sun and Moon are combined, you get more extreme high and low tides. This explains high and low tides that happen about every two weeks. Note: this figure is not to scale. The Sun is much bigger and farther away.

Binding of a signalling molecule to a ligand-gated ion channel receptor, that leads directly to a change in the distribution of ions on opposite sides of the membrane.

Ligand-gated ion channels are also generally referred to as ionotropic receptors, and these are a group of transmembrane ion-channel proteins which are open to allow ions such as K⁺, Ca²⁺, Na⁺ , or Cl⁻ to easily pass through the membrane in order to respond to the binding of chemical messengers (neurotransmitter).

In a ligand-gated ion channel, the substances will be distributed from outside to inside (or vice versa, depending on the type of substances). Ligand-gated ion channels that binds neurotransmitters and open in response to the ligand binding.

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Answer:

Properties of fractions

Properties of fractions

Each crude oil fraction contains a mixture of hydrocarbons. The hydrocarbons in a fraction are mostly hydrocarbons called alkanes. They have similar (but not identical):

For example, the gases fraction contains hydrocarbons with one to four carbon atoms. These have:

The hydrocarbons in different fractions differ in these properties. For example, the bitumen fraction contains hydrocarbons with more than 35 carbon atoms. These have:

Hydrocarbon fuels can undergo complete combustion or incomplete combustion, depending on the amount of oxygen available.

Complete combustion

Complete combustion of a hydrocarbon fuel happens when there is a good supply of air. Carbon and hydrogen atoms in the fuel react with oxygen in an exothermic reaction:

To show that those traits are most likely to be passed to offspring

Any crop's main objective in industrialized agriculture has been to continually raise its yield, or the quantity of food produced per area of land.

Industrial agriculture is the large-scale, intense production of crops and animals, frequently incorporating the hazardous routine use of antibiotics on animals or chemical fertilizers on crops (as a way to compensate for filthy conditions, even when the animals are not sick).

CAFOs and monoculture agriculture are examples of industrial agriculture.

Industrial agriculture's advantages

The fundamental benefit of intensive farming is that it performs better since it can gather bigger yields from fewer areas. This benefits landowners financially and supplies food for the expanding population.

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Answer:

yes ur right

Explanation: