What causes the bonds to break in a chemical reaction

Answer:

Two rocky material collision cause water formation

Explanation:

Earth is rich in water, and has been for a few billion years, but scientists are still debating just where all that life-sustaining liquid came from. At least some of it was thought to have been brought here by comets or asteroids, but that idea still falls short in explaining how so much water ended up on Earth’s surface – and deep below, as well. Now, a team of scientists at Arizona State University (ASU), led by Peter Buseck, has come up with a new proposal. The new peer-reviewed paper was published in the Journal of Geophysical Research: Planets on October 9, 2018.

The new research suggests that Earth’s water came from both rocky material, such as asteroids, and from the vast cloud of dust and gas remaining after the sun’s formation, called the solar nebula.

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Earth’s ocean water is similar to that found in asteroids. That’s one reason scientists have long thought that most earthly water came from an asteroid bombardment in the days of the early solar system. The ratio of deuterium – a heavier hydrogen isotope – to normal hydrogen is a unique chemical signature in various water sources. In the case of Earth’s oceans, the deuterium-to-hydrogen ratio is close to what is found in asteroids. But, according to Steven Desch, also at ASU and one of the team members:

Answer:

The inside-out model proposes that the Earth formed with trace amounts of water structurally bonded to the minerals in the mantle. This water makes its way to the Earth’s surface through volcanic processes.  

Explanation:

Answer:

i'm pretty sure its 6 protons.

Explanation:

Carbon-14 is an isotope of the element carbon. All carbon atoms have 6 protons in their nucleus. Most carbon atoms also have 6 neutrons, giving them an atomic mass of 12.// = 6 protons + 6 neutrons\\. Carbon-14 atoms have two extra neutrons, which is a total of 8 neutrons.

A carbon atom has six protons in its nucleus, which is consistent across all its isotopes, such as carbon-12 and carbon-14. This defines its atomic number as (Option A) 6.

Complete question as follows:

how many protons are in the nucleus of a carbon atom

A. 6

B. 12

Improved preservation techniques, improved monitoring techniques, and improved processing techniques this  scientific advancements led to an increase in food safety, hence option D is correct.

Hazard detection includes new technologies for energy efficiency and waste reduction, an increase in food safety.

The conditions that need to be met in order to keep our food safe, and the detection of hazards, such as that image of the hurricane that allows us to see if and when that storm is coming.

Food safety is the practice of handling, preparing, and storing food in a way that reduces the risk of food-borne disease and injury.

Therefore, food products may come into contact with a variety of health risks as they move through the supply chain from field to factory to fork.

Learn more about food safety, here:

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Answer:

D: all of the above

Explanation:

Scientific advancements have led to an increase in food safety by improving preservation, monitoring, and processing techniques.

Improved preservation techniques, such as refrigeration, freezing, canning, and drying, help to slow or stop the growth of microorganisms that can cause foodborne illness.

Improved monitoring techniques, such as DNA-based testing, have made it easier to identify and track foodborne pathogens, allowing for quicker and more targeted responses to outbreaks.

Improved processing techniques, such as pasteurization and irradiation, have been developed to kill or remove harmful bacteria and other microorganisms from food products.

Overall, these advancements in science and technology have led to a safer food supply, reducing the risk of foodborne illness and increasing public health.

E23 verified.

Answer:

its parasitism

Explanation:

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Answer:

It slows down.

Explanation:

The wave moves slower through the air than it moved through the water.

That created the wave distance to be smaller than it was in water.

hope this helps☆

Answer:

Option (1)

Explanation:

Sound waves are produced due to the vibration of any particular object. These waves propagate freely in air. When these sound waves change its medium from air to water, which is a denser medium, then the velocity of these waves gradually decreases. It is because, in the denser medium, the materials are compressed tightly and the speed of the sound waves in water decreases with the increasing water depth.

Thus, when the sound wave travels from air to water, it gradually slows down.

Hence, the correct answer is option (1).

Answer: I believe the answer is C

Answer:

biome

Explanation:

The climate type and organisms that live in a particular place combine into an ecological classification known as a biome.

Answer:

Mucous film, layer lining body depressions and waterways that lead to the outside, predominantly the respiratory, stomach related, and urogenital lots. Mucous films line numerous plots and structures of the body, including the mouth, nose, eyelids, (windpipe) and lungs, stomach and digestion tracts, and the ureters, urethra, and urinary bladder.

Explanation:

Answer:

20 kg

Explanation:

think of it like this:

1kg=2.2 lbs, meaning that if I want to go from lbs to kilograms, I'll have to divide by 2.2 so to go from 44 pounds to kg divide 44 by 2.2.

To convert 44 pounds to kilograms, multiply by the conversion factor of 1 kilogram = 2.2 pounds. The answer is 20 kilograms.

To convert pounds to kilograms, you need to multiply the weight in pounds by the conversion factor of 1 kilogram = 2.2 pounds. In this case, to convert 44 pounds to kilograms, you can set up a proportion:

44 pounds = x kilograms

1 kilogram = 2.2 pounds

Cross multiplying, you get:

x = 44 pounds × 1 kilogram / 2.2 pounds

x = 20 kilograms

Therefore, there are 20 kilograms in 44 pounds.

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Answer

CORRECT ANSWER  ► B

B- A periodic warming sea surface temperatures

☺☺☺

El Niño is associated with a periodic warming of sea surface temperatures, which is part of the short-term, worldwide climate event known as the El Niño-Southern Oscillation (ENSO). Hence, the correct option is B.

El Niño is a short-term, worldwide climate change event marked by the warming of the Pacific Ocean. This is an aspect of the El Niño-Southern Oscillation (ENSO) that affects weather patterns around the globe. During El Niño, typical weather patterns are disrupted, leading to significant effects such as increased rainfall in normally dry regions and diminished fish populations due to the warmer, nutrient-poor waters.

Coastal upwelling normally brings cold, nutrient-rich waters to the surface, but this is inhibited during El Niño events, deepening the thermocline and preventing the normally productive waters from supporting large fish populations. Moreover, ENSO events have a cyclical nature, typically occurring every two to seven years and can influence global temperatures and precipitation patterns.

Answer:

The answer is flagella

Explanation:

Answer:

cilia

Explanation:

Answer: Earth's seasons are caused by it's tilt on it's axis :)

Explanation:

Answer:

The control group stays consistent throughout an experiment.

Explanation:

In an experiment, the basic format is to have two different groups, the independent group and the control group. You apply whatever change to the independent group, but keep the control group the same.

Independent group - the group that receives treatment.

Control group - the group that receives no change and is used as a comparison to the independent group.

For example:

Q: Shaun is doing an experiment. He wants to test whether sugar water makes lima beans grow faster. What would be his control group and his independent group?

A: His control group would be the lima beans that are only given regular water. His independent group would be the lima beans that are only given the sugar water, because that is the element he is trying to test.

Hope this helps!

Answer:

All that you have matched is correct. ☑✔✔✔

Explanation:

✌Hope it helps ❣

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Answer:

a.

Explanation:

The correct answer is A. Decreasing overconsumption

Explanation

During the last years, environmental concerns have increased due to high levels of contamination and destruction of ecosystems. In response to this situation, a worldwide movement has emerged that promotes environmentally friendly practices that aim at reaching sustainability. The term "sustainability" refers to a global trend to find the balance between the conservation of nature and the use of natural resources; one of the most important principles to achieve this is to reduce consumption; this leads to a decrease in the negative impact of human societies as fewer resources are taken from nature and thus, ecosystems are preserved. So, the correct answer is A. Decreasing overconsumption

Pyruvic acid enters the Karen's cycle and is first converted into acetyl CoA.

Karen's cycle

The Karen's cycle refers to the citric acid cycle which is a cycle that releases stored energy.

Pyruvic acid is transported into the mitochondria, where it is converted into acetyl CoA via the enzyme pyruvate dehydrogenase. This step precedes the Krebs cycle, where acetyl CoA is further broken down to generate energy.

Pyruvic acid enters the mitochondria and is first converted into acetyl CoA. This process occurs in the mitochondrial matrix where the enzyme pyruvate dehydrogenase catalyzes the conversion of pyruvate into acetyl CoA, releasing a molecule of carbon dioxide and forming NADH from NAD+ in a reaction known as oxidative decarboxylation. After its formation, acetyl CoA then enters the Krebs cycle, also known as the citric acid cycle or tricarboxylic acid (TCA) cycle, where it is metabolized to produce ATP, NADH, and FADH2.

The three-carbon pyruvate molecule generated during glycolysis moves from the cytoplasm into the mitochondrial matrix, where it is converted by the enzyme pyruvate dehydrogenase into a two-carbon acetyl Coenzyme A (acetyl CoA) molecule. This reaction is an oxidative decarboxylation reaction. It converts the three-carbon pyruvate into a two-carbon acetyl CoA molecule, releasing carbon dioxide and transferring two electrons that combine with NAD* to form NADH. Acetyl CoA enters the Krebs cycle by combining with a four-carbon molecule, oxaloacetate, to form the six-carbon molecule citrate, or citric acid, at the same time releasing the coenzyme A molecule.

Answer:oldest and modern methods of food preservations are:

Explanation: oldest

1.drying 2.refrigeration 3.fermentation

Modern

1.canning 2.pasteurization

3.freezing 4.addition of chemicals

Food preservation methods include canning, freezing, and drying amongst others. These methods are designed to slow down or halt the growth of microorganisms that cause spoilage. They often involve altering the temperature, water content, or chemical composition of food.

There are several methods used in the preservation of food, designed to slow the spoilage, browning, or degradation of nutrients in food. These methods often involve altering the environment of the food, leading to a slowed growth of bacteria, fungi, and other microorganisms. One of the most common methods is canning, where food is heated inside sealed containers to kill microorganisms. The freezing of food is another method, where the temperature is lowered enough to slow or stop the growth of microorganisms. Drying is one more method, where the water is removed from food to prevent the growth of microorganisms. Other methods include smoking, pickling, jellying, and using preservatives and additives.

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Group behavior is like being open to the others and having a nice time, individual behavior is like silent and thinking.

Comparitive: Group behavior can be loud and full of conversations while individual behavior is like no conversation and silent.

Contrast: Group and Individual behaviors are the opposite of eachother

Hope this helps!

>Starfox5454<

Considering the size of 200µm and the absence of a nucleus, the sample observed under the microscope is most likely a bacterium as bacteria typically match these characteristics.

The sample you observed under the microscope is 200 µm in diameter and has no nucleus. Based on these observations, the sample is most likely a bacterium. Bacteria are typically around this size and lack a nucleus. In contrast, human red blood cells, which are also devoid of a nucleus, are about eight micrometers in diameter which is significantly smaller than 200 µm. Furthermore, the size of some other cellular organelles and viruses is also comparatively small. Therefore, considering the size and absence of nucleus, the most probable classification of the sample would be a bacterium. Micrographs obtained through different microscope types can aid us to observe and study such small entities.

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The sample observed under the microscope is most likely a bacterium because of its size and lack of nucleus, which are characteristic features of prokaryotes like bacteria.

From the description given in your question, the sample you observed that is 200 µm in diameter and has no nucleus is most likely a bacterium. Bacteria are typically a few micrometers in size and do not possess a nuclei, unlike eukaryotic cells. They fall under the category of prokaryotes, which are unicellular organisms without a true nucleus. Prokaryotes are distinct from eukaryotes, such as animal and plant cells, which do have a nucleus. Bacteria are visible under microscopes and can be seen in micrographs.

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Answer:

Option D

Explanation:

The DNA strands are composed of nucleotides which consists of sugar,  phosphate and nitrogenous bases. The base pairs of one DNA starnd bind to the base pair of other DNA strand. The nitrogenous bases in the two strands of  DNA make pairs such as A binds with T and C binds with G.

These base pairs are held together by the hydrogen bonds which are weak molecular forces.

Hence, option D is correct

Answer:

The cell enters the interphase stage after completing the cell cycle. This stage is considered to be “resting” stage because the cell is at full maturity however, this accusation is incorrect. The cell enters the interphase stage instead and prepares to enter into mitosis.

Explanation:

interphase

Answer:

a) when cells are small the movement of food and waste can be efficiently handled by the cell membrane

Explanation:

Cells need to get their nutrients and waste in and out of their cell membrane every quickly. Cells are hard workers anyway! The other options also don't make much sense. The cell shape doesn't mean much to their function, and size doesn't impact shape. The cell's internal parts (mitochondria, vacuole, etc) don't support the cell membrane, they have their own functions to focus on. Cells don't work together in tissue but they can interact with each other when needed.

Answer:

The statement (a) correctly describes that why cells are so small.

Explanation:

Cells are formed of cytoplasm enveloped by a phospholipid bilayer. In the cells of plants, a supplementary cell wall also prevails. The cytoplasm accommodates various metabolic activities that need a spontaneous supply of nutrients. During the same time, metabolic wastes originate from these reactions, which are required to be eradicated. All this uptake and discard of nutrients and waste components occurs by mediation across the cell membrane via passive, active, or facilitated transport.  

In the absence of any circulatory system, these cells depend entirely on the process of diffusion through the membrane. The brisk interchange of molecules can only take place if diffusion occurs over brief distances. Thus, this rate of uptake of nutrients within the cells and discarding of wastes into the external surroundings hugely relies upon the cell surface, which is restricted by the cell membrane. Thus, surface area of the cell is one of the limiting factors to monitor the rates of diffusion of these molecules. Therefore, when the cells are small, their wastes and food can be handled effectively by the cell membrane.  

Answer:

rest of the mRNA sequence- AUG UAU UGC GAC GCT UAC

Explanation:

T becomes A

A becomes U

C becomes G

G becomes C

Hope this helps. Good luck ^-^

Answer:

Is this a question or?

Explanation:

Answer:

B

Explanation:

B is the part of the ATP molecule that stores  and releases energy.

Answer:

The answer is "B".

Hope this helps!!! :)

Answer:

The picture on the left is an illustration of the jet stream on the northern hemisphere during summer. In the tutorial it states, the temperature contrast between cold and warm air masses are smaller, so the jet stream is not that strong only travelling at 50-70 mph. The picture to the right is an illustration of the jet stream on the northern hemisphere during winter. In the tutorial it states the temperature contrast between cold and warm air masses are greater, so the jet stream is very strong travelling at 90-160 mph.

Explanation:

Trust me this the correct answer.

The differences in the appearance of the jet stream in two pictures can be attributed to various factors, most notably the atmospheric conditions and activities such as storms and atmospheric turbulence occurring at the time when the pictures were taken.

The jet stream appears different in the two pictures due to the different factors influencing its visual representation in each picture. In general, jet streams are fast flowing, narrow air currents found in the atmosphere of some planets, including Earth. These streams are typically found in the troposphere or stratosphere. The path of the jet stream, which includes direction and speed, is influenced by a number of factors including the rotation of Earth on its axis and temperature differences in the Earth's atmosphere.

However, other external factors can attribute to their appearance in pictures. For instance, the presence of storms could make the flow of the jet streams appear more turbulent and change their course, while atmospheric turbulence can distort the path of light, making the jet streams seem to take different shapes. For the planets like Jupiter and Saturn mentioned in the tutorial, their differing latitudinal wind patterns and pressures also contribute to the varying appearances of their respective jet streams.

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Answer:

Increase in biomass

Explanation:

All the other choices have attributes that influence the density property of water except biomass. Biomass is organic material/ matter that is mainly carbon-based – mainly derived from plants and animals. This has no relationship to water density even when the biomass is in the water because it's only gets suspended like sediment and does not get dissolved in the water.

Answer:

You lose your pH levels because your heavy breathing is creating more CO2.

Explanation:

Answer:

It decreases pH

Explanation:

Alveolar hyperventilation leads to a decreased partial pressure of arterial carbon dioxide (PaCO2). The decrease in bicarbonate is accompanied by the deviation of serum pH below 7.35.

It is called Respiratory Acidosis. It´s blood pH imbalances. Muscle fatigue is associated with a rapid increase in the production of metabolic acids. Tolerance to high intensity exercise may be limited by the body's ability to dampen the decrease in intracellular (muscle) and extracellular (blood) pH, that is, the intrinsic buffer system.

Answer:

Women have fewer educational and economic opportunities in developing African countries.

Explanation:

Answer:

A. become older

Explanation:

A mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics. This uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.They technically would be old rocks because once the lava dries out it will spew out new rock, pushing away the older rock.