Study the diagram of a cell.





Which structures are found in both plant and animal cells?


W and X

W and Z

X and Y

Y and Z

Answer: Option (c) is the correct answer.

Explanation:

When a system is open then there will be exchange of energy between the system and surrounding.

Whereas when a system is closed then there will be no exchange of energy, that is, thermal energy will not flow into the atmosphere.

Thus, we can conclude that a sealed calorimeter is a closed system because thermal energy is not transferred to the environment.

Final answer:

A sealed calorimeter is a closed system because it does not allow thermal energy to transfer to the environment, allowing for conservation of energy within the system. The correct option is c.

Explanation:

A sealed calorimeter is considered a closed system primarily because thermal energy is not transferred to the environment. By being sealed, it allows energy in the form of heat to be exchanged within the system (the chemical reaction and the water in which the reaction occurs), but it does not allow matter or heat to escape or enter from the external environment. The principle that supports the calorimeter's status as a closed system is the conservation of energy, meaning no overall energy change occurs during the chemical reaction when considering both the system and its surroundings.

Differentiating between types of systems, an open system can exchange both energy and matter with its surroundings, such as a pot of boiling water. A closed system, like a sealed calorimeter, can exchange energy but not matter. An isolated system exchanges neither energy nor matter, but such systems are theoretical as all real systems will eventually exchange some energy with their surroundings.

The sealed calorimeter fits the definition of a closed system because it allows for the exchange of energy within the system while maintaining its mass constant, indicating that no mass is exchanged with the external environment.

Answer: It is true.

Explanation: Hope it helps! :)

Answer:

false

Explanation:

the correct answer is Forensic Technology, Inc.

Answer is C

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Answer:

Explanation:

Separation

Answer:D. It is released as heat and light.

Explanation:

Energy cannot be created nor destroyed but can be converted from one form to another. This is the law of the conservation of energy. Energy is stored in the wax. When the wax is burnt, that energy is converted to another form of energy. In this case heat and light. Energy exists in various forms in nature. Energy is always converted from one form to another.

Answer:

The answer is cows break down the food that they eat

Explanation:

Organisms, such as cows, that eat plants or animals break down the food they have eaten using acids and digestive enzymes. The broken down food is used by their bodies to produce building materials and the energy that they need to survive.

Answer:Differences are that Canis latrans/'Coyte' is smaller than Canis lupus/'Gray Wolf'. and the similarities are both canines and carnivorous

Explanation:

Answer:

nuclear energy i think

Explanation:

Rock records are not an evidence of pre-existing lives.

The flora and fauna constitute the living species of all the plant and animals including the humans. The animal and plant that might have existed long ago can never physically leave evidence in the form of fresh leaves and flesh.

The fossil of the animals and humans and other life forms gives us a clear evidence of what kind of life existed in the years preceding us.

Hence, the correct answer is option B that is fossils.

Answer:

D

Explanation:

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Answer:

D) Decomposers that recycle matter back into the food chain.

Explanation:

The environmental change that occur fastest is the volcanic eruption.

It should be noted that the volcanic eruption simply means when lava when gas are released from volcano.

The environmental change that occur fastest is the volcanic eruption and it should be noted that the most dangerous one is known as the glowing avalanche.

Learn more about volcano on:

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Final answer:

The fastest environmental changes today include climate change, loss of biodiversity, and alterations to the water cycle, all of which are significantly accelerated by human activities, particularly since the mid-20th century.

Explanation:

Notably, the fastest environmental changes currently occurring relate to climate change, loss of biodiversity, and changes in water cycles. These changes are largely driven by human activities, notably since the mid-20th century, a period often referred to as the Great Acceleration, indicating a steep increase in population growth, GDP, and resource consumption leading to a profound ecological impact. Climate change is one of the most dramatic examples of rapid environmental alteration. It is occurring at a pace unprecedented in human history, with global temperatures projected to rise significantly within a single century, a rate at least 100 times faster than naturally occurring changes. This swift change is too rapid for many social systems, natural species, and ecosystems to adapt, leading to increased risks of extinction, spread of diseases, and more frequent catastrophic natural disasters.

Another swift change is seen in the loss of biodiversity, where species are going extinct at a rate much higher than the natural background rate, primarily due to habitat destruction, pollution, overexploitation, and climate change. Additionally, water cycles are being altered, with some regions experiencing more intense droughts and others more severe flooding, challenging existing agricultural practices and water management systems.

Answer:

Late in the night on February 8, 1904, Japan launched a surprise attack against the Russian-held Port Arthur, along the coast of Manchuria, beginning the Russo-Japanese War.

Explanation:

hope this helps

Final answer:

The Russo-Japanese War started due to territorial disputes in Manchuria and Korea, with Japan launching a surprise attack on Port Arthur in 1904. Japan's victory altered international relations and signaled the rise of Asian military prowess against European powers.

Explanation:

The Russo-Japanese War began primarily due to territorial rivalries in Manchuria and Korea. In the winter of 1904, Japan initiated the conflict with a surprise naval attack on the Russian fleet at Port Arthur because of Russia's military presence in Manchuria and its refusal to recognize Japan's interests in Korea. Industrialization in Japan played a crucial role, enabling its military to achieve rapid victories over Russia. This conflict ended with the signing of the Treaty of Portsmouth in 1905, with Japan gaining control over Korea and parts of Manchuria. The war not only demonstrated Japan's industrial military power but also influenced international dynamics by challenging European influence in Asia and stirring political unrest within Russia.

To find the number of molecules in 3.2 mol of ammonia (NH3), we can use Avogadro's number. Multiply 3.2 mol by Avogadro's number (approximately 6.022 x 10^23 molecules/mol) to get approximately 1.9264 x 10^24 molecules.

To calculate the number of molecules in 3.2 mol of ammonia (NH3), we can use Avogadro's number. Avogadro's number is approximately 6.022 x 1023 molecules/mol. So, to find the number of molecules in 3.2 mol of ammonia, we multiply 3.2 mol by Avogadro's number:

Number of molecules = 3.2 mol x 6.022 x 1023 molecules/mol = 1.9264 x 1024 molecules

Therefore, there are approximately 1.9264 x 1024 molecules in 3.2 mol of ammonia.

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