What is the Role of Microfilaments in Cell Division ?

A- They Pull the cell Membrane In
B- They Separate the Sister Chromatids
C- They Push the Chromatids Together
D- They Push the cell into anaphase

No; the cells shrink with increasing salinity.

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Answer:

No; the cells shrink with increasing salinity.

Explanation:

I did the study island

A community of organisms and their environment is called an ecosystem.

it is called ecosystem

When a star begins to run out of fuel, the first thing that happens is the shrinking of its core. The core collapses inward due to the lack of energy to counteract gravitational forces. Eventually, this leads to the formation of a white dwarf.

(option c)

The first thing that happens when a star begins to run out of fuel is that the star's core shrinks. As the core runs out of fuel, it can no longer produce enough energy to counteract the gravitational forces, causing it to collapse inward. This collapse leads to the core becoming denser and hotter.

Eventually, the shrinking core may trigger a fusion reaction in the surrounding helium shell, generating a new flow of energy. However, for low-mass stars, the core lacks the mass and temperature to initiate another round of fusion, so the core continues to shrink.

At extreme densities, a new behavior of matter, governed by quantum physics, comes into play. This behavior helps the star achieve a final state of equilibrium, resulting in the formation of a white dwarf.

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It is important in determining whether injuries/death was an accident or purposeful, and if purposeful, who, how and why did someone do it. They determine the weapon through the ligature marks left, the shape, force and impact of the injury, the location of the injury, and by analysing any fragments and trace evidence left on the wound

Joseph Black, born in 16 April 1728 in Bordeaux, France.

Known for his discoveries of magnesium, latent heat, specific heat, and carbon dioxide.

Answer:

B. C. and D.

Explanation:

apex

The sources of lake water include ocean waves, ground water, and rain runoff. Thus, the correct options are A, B, and C.

A lake is a water body which is surrounded by land from all the sides. They are found in mountains, deserts, plain areas and in seashores. The water in the lakes comes from rain, snow, melting ice, streams, and groundwater. Mostly lakes contain freshwater.

Water from the rain runoff flows through various paths and collects into lakes. It carries various types of small leaves or soil particles which along with it enters into the lake.

The ground water can also form lakes and is the main source of freshwater. The melting snow is also a source of fresh water that flows and enters the nearby ponds and lakes that are present in the nearby areas.

Therefore, the correct options are A, B, and C.

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Answer:

amino acid

Explanation:

one amino acid is carried by each transfer RNA (tRNA) during translation of messenger RNA to protein.

Adenosine triphosphate (ATP) holds more stored energy than Adenosine diphosphate (ADP). The energy is stored in the high-energy bonds between the phosphate groups in ATP, and it is released when ATP is converted to ADP.

The two structures, ATP (Adenosine triphosphate) and ADP (Adenosine diphosphate) both play crucial roles in energy storage and transfer in cellular function. To answer the question, ATP is the molecule that holds more stored energy. ATP consists of an adenine, a ribose, and three phosphate groups. The energy in ATP is stored in the bonds between the phosphate groups. These bonds are considered high-energy because a lot of energy is required to form them and energy is released when they are broken.

When ATP is transformed into ADP (a process called hydrolysis), a phosphate group is released, and so is the energy previously stored in the bond. The energy released from the hydrolysis of ATP to ADP is used for various cellular activities. When the cell has excess energy, it is used to convert ADP back into ATP, storing the energy in the newly formed phosphate bond for later use.

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Freshwater marshes occur beside rivers and oceans.

Yes, this statement is true .

Freshwater marshes conatins fresh water . They are generally found near the river mouths. They are  found along the fringes of lakes and rivers where the water table, the upper surface of underground water, is very high. Marshes are useful for the damage cause by the flood storing the water.

Answer: It can form polymers like carbohydrates, lipids, proteins, and nucleic acids.

Explanation:

The carbon is an important element which forms an important ingredient of the bio molecules like carbohydrates, lipids, proteins these are the important components of the food. The lipids form the main part of the cell membranes which selectively restricts and allow the passage of the molecules and ions in and out of the cells. The proteins are the building blocks of life they perform functions in cell metabolism. The nucleic acid includes the genetic material which is inherited by the offsprings from their parents. All these bio-molecules are necessary for the survival of the living organisms.

I believe the correct answer is commensalism.

This is a mutual symbiotic relationship were both the partners benefit from the process.In this case, the bacteria break down the food that is considered waste with facilitates its survival and on the other hand the human body obtains vitamins that are released in the bloodstream for absorption.

Its Mid-ocean ridges so D

The correct option is D. mid-ocean ridges. Sea-floor spreading occurs at mid-ocean ridges, where two tectonic plates are moving apart.

These are underwater mountain ranges formed by divergent plate boundaries, where two tectonic plates are moving apart. As the plates separate, magma rises from beneath the Earth's crust to create new oceanic crust, which gradually pushes the older crust away from the ridge, leading to the expansion of the ocean floor.

Plants take in Carbon Dioxide during the process of photosynthesis.

Hope this helps!! :)

Plants make sugars in the presence of sunlight in a process called photosynthesis, and plants take in carbon dioxide ([tex]CO_2[/tex]) from the atmosphere for the process of photosynthesis as described in Option A.

During photosynthesis, plants use energy from sunlight to convert carbon dioxide and water into glucose and oxygen, and this process of photosynthesis can be divided into two main stages: the light-dependent reactions and the light-independent reactions. Light-dependent reactions take place in the thylakoid membranes of the chloroplasts and involve the absorption of light, but in light-independent reactions, carbon dioxide is fixed. Later, when carbon dioxide is fixed, glucose is also formed.

Hence, plants take in carbon dioxide ([tex]CO_2[/tex]) from the atmosphere for the process of photosynthesis as described in Option A.

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The question is incomplete, the complete question is below

Plants make sugars in the presence of sunlight in a process called photosynthesis. What form of carbon do the plants take in for this process?

A)Atmospheric carbon dioxide

B)no carbon dioxide is used

Sorry I am late I think its D.. please let me know if it is correct or not thanks!!

Answer:

Collecting weather data helps geologists locate land that has been weathered

Explanation:

Them the solution is hypertonic. This means that the water within the cell would exit it and go outside and the cell would shrink.

Unlike terrestrial planets whose composition is rocky, gas giants have a mostly gaseous composition, such as hydrogen and helium. They do have some rocky material, although this is most often found in the planet core. Terrestrial planets are generally relatively small while gas giants are instead very large. (Historical researcher, D. Vogt stated that the lightest gas giant in the solar system is fourteen times the mass of the heaviest terrestrial planet, Earth.)

Gas giants are different from terrestrial planets in terms of composition, size and mass, and atmosphere characteristics.

Gas giants differ from terrestrial planets in several key ways:

Therefore, gas giants differ from terrestrial planets by composition (mostly hydrogen and helium), lack of solid surfaces, and being significantly larger and more massive.

It is identical or nearly identical to the first DNA molecule.

Answer: it is identical or nearly identical to the first DNA molecule.

Explanation: The process of DNA replication results in an exact copy of the original DNA molecule. This process occurs once in the life-cycle of a cell, allowing the cell to divide into two cells with identical DNA copies. Rarely, a mistake occurs during some part of the process. These mistakes are called mutations, and will result in a slightly different strand of DNA.

The correct answer for this question is C) decreased mass - less energy needed for movement - less carbohydrates required - more available ATP

Solution; Increased muscle mass in athletes will increase the number of mitochondria in body. Mitochondria provides energy to cells of our body so more mitochondria will results in more energy and due to large amount of energy there will be increased cellular respiration and less fatigue, thus athletic performance will be improved.

Answer:

B

Explanation:

USATESTPREP

Nucleus is double membrane bound organelle present at center of cells. The nucleus holds the cell's DNA and controls all cell function. Cells with a nucleus are eukaryotic, and are also known as eukaryotes. The nuclear envelope in eukaryotes is like our skull, covering the nucleus and keeping the DNA safe.

This organelle has two major functions: it stores the cell's hereditary material, or DNA, and it coordinates the cell's activities, which include growth, intermediary metabolism, protein synthesis, and reproduction (cell division). Only the cells of advanced organisms, known as eukaryotes, have a nucleus.

I can conclude that the carbohydrates can not be stored in body in form of sugars like glucose, fructose, lactose etc.

An isotherm refers to a line associating locations with equivalent temperatures. The isotherm maps demonstrate that where the temperatures are comparatively low and high, and also where temperature modifications are dramatic or gradual over a distance. The isotherms are demonstrated with curved lines or in colored bands associating the temperatures.  

In the given case, one should go towards the South-West direction of the map to find a warmer temperature as the isothermal line of the highest temperature, that is, of 68 degree F directs towards the South-West.  

In the US, you would generally head south from New York State to find warmer temperatures, due to the Earth's tilt causing the sun's rays to heat the equatorial regions more intensely.

Without an actual isotherm map provided for reference, it's difficult to give a precise direction. However, generally, greater warm temperatures in the United States are found as you head southwards. This is based on the idea that temperature tends to rise as we move towards the equator. For example, moving from New York State towards Florida would generally involve encountering progressively warmer temperatures. This is due to the earth's tilt creating a direct path for the sun's rays to the equator than the poles, heating these areas more intensely.

The direction of heat transfer from hot to cold also supports this concept, mirroring the general tendency of warm air to rise and move towards cooler regions. These concepts of heat transfer and geographic temperature distributions are fundamental elements of thermodynamics and climatology. Secondly, other physical factors could affect the temperature such as altitude, ocean currents, and topography.

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The benefit of using renewable resources such as sunlight and wind is that they are replaceable by healthy ecosystems and contribute to sustainable environmental practices.

Among the benefits of using renewable resources is that they are replaceable by healthy ecosystems. Thus, the answer to the student's question is C. Renewable resources are replaceable by healthy ecosystems. Renewable resources, such as sunlight and wind, are in abundant supply and are not in danger of being used up. The use of these resources contributes to a more sustainable environment, which means they can be used in a way that meets the needs of the present without compromising the ability of future generations to meet their own needs. This includes the sustainable harvesting of wood, cork, and bamboo, as well as sustainable agricultural practices. Using renewable energy sources like wind, solar, and hydroelectric power not only helps to combat climate change by reducing greenhouse gas emissions but also promotes energy independence and local control over power generation.

Option B is correct.

B. shared; atoms

A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.

Answer:

B. shared; atoms

Explanation:

Covalent bond is formed by sharing of electrons between two atoms. In this way full outer shell is achieved by both the atoms. Since there is no gain or loss of electrons, no ions are formed in the process.

It is usually formed between the atoms of similar electronegativity. It can be of many types like sigma bond, pi bond etc. If a pair of electrons is shared, it's a single bond. If two pairs are shared, it's a double bond and if three pairs are shared, it's a triple bond.

Polypeptide chains are formed when amino acids are joined by peptide bond . Linear polymers are proteins which are formed by joining of alpha carboxyl group of one amino acid to the alpha amino group of another amino acid. Peptide bond is formed when C=O group of one molecule react with NH2 group of another molecule and releasing a water molecule .

The process that joins amino acids together to form proteins is called "protein synthesis" or "translation." Protein synthesis occurs within the cells and involves two main steps: transcription and translation.

Transcription: The first step is the transcription of the genetic information stored in the DNA into a messenger RNA (mRNA) molecule. This process takes place in the cell nucleus. The enzyme RNA polymerase reads the DNA template strand and synthesizes a complementary mRNA strand by adding RNA nucleotides.

Translation: The second step is translation, which occurs in the cytoplasm of the cell, specifically in the ribosomes. During translation, the mRNA is "read" by ribosomes, and the sequence of nucleotides (codons) is used as a template to assemble amino acids into a polypeptide chain, which eventually folds into a functional protein.

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I believe the answer would be B-Humans live in all habitats where life exists.

This is true weather is the condition of the air around us

The translation process activates to create polypeptide sequences.

When the messenger RNA gets information (codon) from the DNA, it comes toward the ribosomes where transfer RNA also attached. At the ribosomes, the transfer RNA decodes the information of messenger RNA as match its anticodons with codons of messenger RNA. (Nucleotides as A with U and C with G). This process of decoding at the ribosomes with the help of transfer RNA called the translation process which ultimately leads the process toward releasing of long chain peptide.