why are hydrogen atoms different from the atoms of all other atoms

Answer:

True the sunlight from the sun provides heat light and thermal energy

Explanation:

The brown rabbits would be more frequent in this population, with a frequency of 70.

A population can be described as a group of individuals of the same species living in a given location at the same time. The rabbit population may be brown (the dominant phenotype) or white (the recessive phenotype). Brown rabbits have the genotype BB or Bb, whereas white rabbits have the genotype bb. The frequency of the bb genotype is 38. In any given population, there may be one or more dominant alleles, which are expressed more frequently than their recessive counterparts. 

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Answer: The last one

Explanation: Some organisms can be unicellular (made of one cell) like E coli and Protista

Answer:

It's blood type

Explanation:

im in k12 and had a quiz about it.

Answer/Explanation:

The Golgi body is a system of flattened sacs that is involved in the packaging, modification, and transport of proteins. It is particularly important for proteins that have to be transported outside of the cell.

Proteins from the Golgi that are to leave the cell are transported in vesicles. When they reach the membrane, the vesicles fuse with it and release the proteins outside of the cell

The following fill in the blanks are, Stratosphere, Mantle, Outer core, Inner core, Lithosphere, Geosphere

What is the atmosphere and its features?

A layer of gases known as the atmosphere envelops the planet Earth. The gravitational pull of the planet's neighbor, Earth, keeps it close to the surface. The three primary elements of the atmosphere are nitrogen, oxygen, and argon.

All life on Earth is shielded by the atmosphere, a layer of gases that regulates temperatures within a narrow range and deflects harmful solar rays.

Features of the atmosphere:

The distance between the atmosphere and space is infinite. until it "blends" into outer space, the atmosphere becomes less dense and denser.

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Answer:

Punnett Square

Explanation:

Answer:

Punnett Square

Explanation:

A punnett square crosses the parents genome types, either dominant or recessive, capital or lowercase and determines a certain percentage of each type of gene

Answer:

A. Mid ocean ridge

Explanation:

A divergent plate boundary often forms a mountain chain known as a ridge. This feature forms as magma escapes into the space between the spreading tectonic plates.

The mid-ocean ridge, rift valley is a geological feature can be created by a divergent boundary. Therefore option A is correct.

A divergent boundary is a type of tectonic plate boundary where two lithospheric plates move away from each other. This movement creates a gap or space between the plates, allowing magma from the asthenosphere (the partially molten layer of the Earth's mantle) to rise and fill the void.

As the magma reaches the surface, it cools and solidifies, forming new crust. This process occurs primarily in the oceanic lithosphere, resulting in the formation of mid-ocean ridges.

Mid-ocean ridges are underwater mountain ranges that run along the seafloor and span across the Earth's oceans.

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Answer:

solid will change to liquid and then gas

Explanation:

melting, evaporation

Answer:

C) natural selection has favored this trait

Explanation:

True, a worm is a self-contained program that has to trick users into running it.

A worm is a type of malware that can replicate itself and spread from one computer to another. Unlike viruses, worms do not need to attach themselves to an existing program or file to spread. However, they do need to trick users into running or opening the file containing the worm. This can be done through various methods such as disguising the file as a legitimate program or using social engineering techniques to convince the user to open the file.

Therefore, the statement that a worm is a self-contained program that has to trick users into running it is true.

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Answer:

The nucleotides are split

Explanation:

With the release of enzyme, enzyme take part in the chemical reaction without utilizing in it.

When the enzyme release by any glands in the body, it attached to the substrate and speed up the chemical reaction without using in it. Once the chemical reaction ended, the enzyme which attached the substrate earlier detached and then attached other substrate in order to speed up the chemical reaction.

Without enzyme, chemical reaction occurs but at a very slower rate so we can conclude that with the release of enzyme, enzyme take part in the chemical reaction without utilizing in it.

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Answer:

D. Volcano;constructive

Explanation:

Propagation using very small plant parts and placing them on nutrient-enriched agar media in closed containers is asexual propagation of the type of micropropagation.

Micropropagation is a plant propagation activity using tissue culture techniques. The initial planting material used for micropropagation is micrometers in size for explant cultures and smaller than one millimeter for meristem cultures. The aim of micropropagation is to mass-produce plants that have identical genetic material and uniform physiology with normal development and are free of pathogens. In addition, micropropagation aims to produce plants that can go through the process of acclimatization in a short time at a low cost.

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Aortic valve calcification is normally due to  atherosclerosis, which is a condition in which plaque builds up in the arteries.

The arteries may stiffen and narrow as a result, allowing less blood to flow through them. The aortic valve is impacted by the plaque and is susceptible to becoming calcified because it is a component of the circulatory system.

Aortic valve stenosis can result from this calcification, which can stiffen the valve and prevent it from opening and closing appropriately. Additionally, an enlarged left ventricle and a reduction in cardiac output might result from the valve's constriction.

Aortic valve regurgitation can also result from calcification, which can make the valve leak. Medication, way of life modifications, and surgery are all possible treatments for aortic valve calcification.

Complete Question:

Aortic valve calcification is normally due to _________.

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Answer:

1

Explanation:

Answer:

DNA is something that's in a person it's basically something that's in your body that you can use for mulitpule things.

Many people push themselves to the limit of 300 times every day. But if done properly, even 50 to 100 push-ups should be enough to maintain a strong upper body for the average person. Thus, option A is correct.

Start with 20 push-ups, but don't limit yourself to that number. It's decisive to continually lifting the amount to keep your body guessing.

Push-ups done the old-fashioned way are good for developing upper body strength. They exercise the shoulders, pectorals, and triceps.

By contracting (drawing in) the abdominal muscles, they can also strengthen the lower back and core when done with perfect technique. Push-ups are a simple and powerful exercise for increasing your strength.

Therefore, Yes, this is an effective way to monitor strength.

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Answer:

Without infection or decay on your food you are decreasing the risk of getting viruses like salmonella,food poisoning,Norovirus, etc. It could also help the less fortunate or homeless they would not have to worry about replacing their food due to decay or infection

Answer:

The answer is B: The projections increase the surface area-to-volume ratio of the cell, which allows for more efficient nutrient exchange with the environment.

Explanation:

These finger-like projections, also known as microvilli, are commonly found in cells that are actively involved in absorption or secretion, such as the kidney cells in this scenario. They significantly increase the surface area of the cell, thereby allowing more transport proteins to be embedded in the cell membrane and facilitating more efficient exchange of molecules between the cell and its environment. This increase in surface area doesn't significantly affect the volume of the cell, so it doesn't considerably increase the metabolic needs of the cell.

Therefore, these projections do not primarily increase the volume of the cell (option A), the speed of individual molecule movement (option C), or the selectivity of the membrane by limiting the number of transport proteins (option D). Instead, they enhance the cell's capacity for molecular exchange by increasing its surface area.

Answer:

A. Recombinant DNA

Recombinant DNA is created by a process called genetic recombination. In this process, we insert a exogenous gene to let another organism, a bacteria in this case, produce a protein that can not be produced otherwise

They breed germs in pooling rainwater . I hope this is the correct answer

Answer:

B. Their productive organisms quickly recycle nutrients

Explanation:

chemical reactions involve changes in the energies of the molecules involved in the reaction

During a chemical reaction, bonds are formed or breaked to make new products which may complex than the reactants. Energy changes can be happened in a reaction during rearrangement of atoms. Thus, all of the statements are correct.

A chemical reaction is a chemical change occuring for matter where the atoms are regrouped into new products through bond making or bond breaking or both.

The change in energy during a reaction is called enthalpy change, where each reactant is associated with a standard energy and the energy may change with temperature or other external factor.

There may more than two reactants and some reactions are completing through several stages and may lead to complex products which are having entirely different properties from the reactants. Therefore, all the given statements about chemical reactions are correct.

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Answer:

A:in isotonic solution both cells remain of same size.

B:in hypotonic solution , both cells will expand in size but due to the rigid plant cell wall it will not be able to expand to the degrees of an animal cell.

C:in hypertonic solutions , both cells will shrink in size

Explanation:

hypotonic solutions means that the osmolarity is less than that of the cellular cytoplasm(like less salt in water than that of cytoplasm), so water moves from low concentration(the solution with less salt) to high concentration(the solution with more salt). Therefore in case of hypotonic water moves from surrounding solution to inside of cell thus expanding the size.

Vice versa is true for hypertonic solution.

So just remember water moves from low concentration of solute(salt) to high concentration.

*content in brackets is for better understanding

Trans fats can elevate LDL cholesterol, increase triglycerides, and lower HDL cholesterol.

These fats have a significant result in raising blood cholesterol levels. It exist naturally in small quantity in some meat and dairy products.

The raised blood cholesterol levels are a risk factor for heart disease/attack. Triglycerides are the fat present in our bloodstream.

It is so because trans fatty acids have one or more double bonds present in trans configuration instead of the usual CIS configuration. Trans fats are unsaturated fats produced from vegetable oils. Therefore, trans fats are commonly used in the composition of margarine and commercially baked or fried foods.

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Angiotensin is a hormone that plays a crucial role in regulating blood pressure. Its primary function is to stimulate vasoconstriction, which results in the narrowing of blood vessels and an increase in systemic vascular resistance. This increase in resistance leads to an increase in blood pressure, which can help maintain blood flow to vital organs during times of stress or injury.

The effects of angiotensin on blood pressure regulation are primarily mediated through the renin-angiotensin-aldosterone system (RAAS). When blood pressure drops or blood flow to the kidneys is reduced, the kidneys release an enzyme called renin. Renin then converts angiotensinogen, a protein produced by the liver, into angiotensin I. Angiotensin-converting enzyme (ACE) then converts angiotensin I into angiotensin II, the active form of the hormone. Angiotensin II binds to specific receptors on the smooth muscle cells that line the walls of blood vessels, causing them to contract and narrow. This narrowing of the blood vessels increases peripheral resistance, which in turn increases blood pressure. Angiotensin II also stimulates the release of aldosterone from the adrenal glands, which promotes sodium and water retention, further increasing blood pressure. Overall, the function of angiotensin is to help regulate blood pressure by increasing systemic vascular resistance through vasoconstriction and promoting sodium and water retention. Dysregulation of the RAAS can lead to hypertension, which is a significant risk factor for cardiovascular disease. Therefore, understanding the mechanisms of angiotensin action and developing therapies to target these pathways is critical for the prevention and treatment of hypertension and related disorders.

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The patterns that are most easily observed is the differentiation of the cells during development.

At the early stage of embryonic development, a few key patterns in appearance can be observed. These include the formation of the neural plate, which will eventually give rise to the brain and spinal cord, as well as the formation of the primitive streak, which marks the beginning of gastrulation and the formation of the three primary germ layers (ectoderm, mesoderm, and endoderm).

Additionally, the embryonic heart begins to beat and blood cells start to form, and the formation of the limb buds, which will give rise to the arms and legs, can also be observed.

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