The entire class goes for a hike. We all pick up rocks from the valley and carry them up to Frenchman Mountain, east of Las Vegas,
where we stack them up on the peak. Subsequently, the pile collapses and all the rocks roll back down the mountain to the valley
below where we originally collected them. Answer the following questions:
1. What energy changed by moving the position of the rocks from the valley to the peak. Explain your answer.
2. What type of energy did the work to move the rocks to the peak? Where did that energy originally come from?
3. What type of energy was used as the rocks rolled back down the mountain?
4. If the rocks were moved from point A (the valley) to point B (the peak) and subsequently rolled back down to point A was the
overall energy used zero since they ended up back where they started? Explain why or why not.

On the Structure of Compact Bone, the order of labelling are:

The photomicrograph shows a cross-section of a Haversian system, which is the basic unit of compact bone. The Haversian system consists of a central canal surrounded by concentric layers of bone called lamellae.

The osteocytes are located in lacunae that are arranged in rows along the Haversian canal. The canaliculi connect the lacunae to each other and to the Haversian canal. The central canal contains blood vessels and nerves that supply the osteocytes. The compact bone is arranged in columns called osteons.

Find out more on bone here: https://brainly.com/question/412179

#SPJ1

Answer:

A

Explanation:

that what i think

i don't know if I'm right

Answer:

Cold

Explanation

Weather conditions on Mars

Mars is an extremely cold planet with an average temperature around minus-80 degrees. Temperatures can dip to minus-225 degrees around the poles. Periods of warmth are brief — highs can reach 70 degrees for a brief time around Noon at the equator in the summer.

The nutrient which provide more energy is C. Lipids

Among the given options, lipids provide the most energy per unit mass. Lipids, also known as fats, are a concentrated source of energy in the diet. When metabolized, lipids yield approximately 9 kilocalories (kcal) of energy per gram.

Carbohydrates, including sugars and starches, provide approximately 4 kcal of energy per gram. They are a readily available source of energy for the body, particularly for short-term energy needs. Proteins also provide approximately 4 kcal of energy per gram. However, their primary role is not as an energy source but rather as the building blocks for tissues, enzymes, and other important molecules in the body.

Vitamins, on the other hand, do not provide significant energy. They are essential for various biochemical processes in the body but do not contribute directly to energy production.

It is important to note that while lipids provide the most energy per gram, the overall balance and variety of nutrients in a diet are crucial for maintaining optimal health. Nutrient needs vary based on individual factors, such as age, sex, activity level, and overall health goals. Therefore, Option C is correct.

Know more about Lipids here:

https://brainly.com/question/17352723

#SPJ8

Answer: OUTRO

Explanation:

Answer:

Here are some answers I found. It isn't all of them, but it might help. You get some of the answers, which is better than nothing. You have to pay if you want all the answers though :(

Explanation:

https://www.coursehero.com/file/p5pk211a/Summarize-How-are-the-processes-of-natural-selection-and-artificial-selection/

https://www.coursehero.com/file/28264145/EvolutionNaturalArtificialSEdocx/

Darwin had seen these birds on a visit in the 1830s to the Galápagos Islands, a collection of islands in the Pacific Ocean to the west of South America.

Artificial selection is the process of identifying desirable qualities in plants and animals and then taking action to strengthen and pass those traits on to succeeding generations.

Artificial selection operates in a similar manner to natural selection, with the exception that in natural selection, these judgments are made by nature without human intervention.

The physical characteristics and behaviors of many kinds of birds known as finches were highlighted by British naturalist and biologist Charles Darwin in his 1859 book On the Origin of kinds, which outlined the evidence for his hypothesis of evolution by natural selection.

Therefore, Darwin had seen these birds on a visit in the 1830s to the Galápagos Islands, a collection of islands in the Pacific Ocean to the west of South America.

To learn more about Darwin, refer to the link:

https://brainly.com/question/28345479

#SPJ2

The phylum with the greatest number of different species: Generally, the Phylum Arthropoda (which includes insects, spiders, and crustaceans) has the highest number of species globally.

The most difficult phylum to find: This would depend on the specific region and habitat. Some phyla like Porifera (sponges) or Echinodermata (starfish, sea urchins) might be hard to find in a terrestrial environment because they're primarily marine.

Phyla you could not find at all: This again would depend on your location. If you're not near a body of water, you're unlikely to find any members of the Phylum Cnidaria (jellyfish, corals, sea anemones) or Phylum Mollusca (squid, octopus, snails) for example.

Animal diversity: Diversity varies greatly depending on the region. Biodiversity hotspots, such as rainforests or coral reefs, have a high level of species diversity. Conversely, more extreme environments like deserts or polar regions have less diversity.

Read more on Phyllum here:https://brainly.com/question/27019009

#SPJ1

Answer: The timeline required is as follows:

c. Imperialism

b. Major events in the Industrial Revolution

d. Major events of the Civil War

e. Transcontinental Railroad.

a. Automobile and Henry Ford (development from the bicycle)

Explanation: In the timeline given above here are short explanations of the events.

c. Imperialism

When one nation takes over another political and economic gains.

b. Major events in the Industrial Revolution

The founding of cotton mills and the coming up of industrial towns.

d. Major events of the Civil War

These were the battles between the north and south.

e. Transcontinental Railroad.

It was completed right after the end of the civil war. It connected the nation with the railway track.

a. Automobile and Henry Ford (development from the bicycle)

The automobile was a 20th-century invention that brought modernity. It was the beginning of modern assembly line production in the US.

Answer: oxygen and glucose are reactants of cellular respiration

Explanation:

Oxygen and glucose is what is needed in order for the cellular respiration process to work

Contaminated water is a type of water that is harmful to human beings due to the presence of harmful substances, pollutants, or impurities that make the water unsafe for drinking or other household uses. The characteristics of contaminated water can be identified through various indicators, which can either be physical, biological or chemical.

Physical indicators are visible and may include color, taste, and odor, while biological indicators are not visible and may include bacteria, viruses, and protozoa. Chemical indicators may include heavy metals, pesticides, and organic compounds, among others.

Physical Characteristics: Physical characteristics of contaminated water include cloudy or turbid appearance, unusual taste or odor, or discoloration of the water. The color may range from yellow to brown, blue to green, or even black.

Biological Characteristics: Biological characteristics of contaminated water include the presence of bacteria, viruses, or protozoa. These microorganisms can cause diseases such as diarrhea, typhoid, cholera, and dysentery.

Chemical Characteristics: Chemical characteristics of contaminated water include the presence of heavy metals such as lead, arsenic, or cadmium. Pesticides and fertilizers can also contaminate water and affect human health. Organic compounds like benzene and toluene can also be present in contaminated water, which can lead to health problems such as cancer and nerve damage.

Therefore, it is important to test water sources regularly to identify and monitor any contaminants that may be present. This can help prevent health problems associated with the use of contaminated water.

Know more about Contaminated water here :

brainly.com/question/16943782

#SPJ8

The atom represented by the model with one valence electron in its outermost shell is most likely to have the lowest ionization energy and hence is most likely to form a cation with a charge of +1.

The atom that has the lowest ionization energy is the one which is most likely to form a cation with a charge of +1. Ionization energy is defined as the energy required to remove an electron from an atom or ion in the gaseous state. Therefore, an atom with a low ionization energy requires less energy to remove its outermost electron and form a positively charged cation.

Among the models of atoms given, the atom represented by the model with one valence electron in its outermost shell is most likely to have the lowest ionization energy. This is because the valence electron is loosely held by the nucleus due to its large distance from it. As a result, it requires less energy to remove the outermost electron and form a cation with a charge of +1.

For example, Lithium (Li) has one valence electron in its outermost shell and has the lowest ionization energy among the elements in the first group. This makes it easy for Lithium to lose its valence electron and form a cation with a charge of +1.

In summary, an atom with a low ionization energy requires less energy to remove its outermost electron and form a positively charged cation.

For such more questions on outermost shell

https://brainly.com/question/30242342

#SPJ8

Note: The complete question is- Which of the following models of atoms represents an atom that has the lowest ionization energy, and is therefore most likely to form a cation with a charge of +1?

Answer:

d. Plant cells contain a large vacuole that occupies much of the volume of the cell.

Explanation:

The vacuole is a membrane-bound organelle which is often found in plant and fungi cells, as well as in certain bacteria, protists and animal cells. The vacuole is filled with water that forms a solution containing inorganic and organic compounds. The size of the vacuole may vary depending on the requirements of the specific cell type. In plant cells, vacuoles often occupy an important fraction of the overall cell volume and play key roles during growth and development, influencing diverse cellular functions ranging from photosynthesis to transpiration.

The specific properties of the most desired organic semiconductors for solar panel technology may evolve as advancements are made in the field.

In the context of solar panel technology, the most desired type of organic semiconductors would typically possess the following characteristics:

High Efficiency: The organic semiconductors should have a high power conversion efficiency, meaning they can efficiently convert sunlight into electricity. This is crucial for maximizing the electricity output of solar panels.

Tunable Bandgap: Organic semiconductors with a tunable bandgap would be advantageous. The bandgap determines the range of light wavelengths that can be absorbed by the material. A tunable bandgap allows for optimization to match the solar spectrum, enabling better absorption of sunlight and improved overall efficiency.

Long Operational Lifetime: The organic semiconductors should be stable and exhibit a long operational lifetime. Solar panels are expected to endure outdoor conditions for many years, so the materials used should be resistant to degradation, such as from exposure to UV radiation or moisture.

Scalability and Low Cost: Manufacturers aim to produce organic semiconductors on a large scale at a low cost. Therefore, desirable organic semiconductors should be readily synthesized using cost-effective methods and be compatible with high-volume manufacturing processes.

Environmental Friendliness: Organic semiconductors that are environmentally friendly and have low toxicity are desirable. This is aligned with the goal of sustainable and clean energy technologies.

It is important to note that the field of organic semiconductor research is still evolving, and scientists are continually working to improve the performance and characteristics of these materials.

for similar questions on semiconductors.

https://brainly.com/question/3537004

#SPJ8

Answer:Nucleic acids

Explanation:

Answer: The dew point is

Explanation:

A point is a temperature at which the hair becomes 100 percent saturated. The lower the dew point the drier the air. Causes water droplets and fog.

Answer:

3. Anatomy.

Explanation:

Anatomy is a branch of science which studies the physical structure of humans, animals, and other living beings. Anatomy is a part of biological studies. This field in the science is focussed on the shape, structure, and the relationship relevant to the living organisms.

Anatomy is further divided into two branches, namely, microscopic anatomy and macroscopic anatomy.

Therefore, the correct answer is option 3.

Answer:

Amount of dissolved gases in water increases

Explanation:

Answer:

i beleive it is a

Explanation:

In real-life situations, it is generally not enough to make only one hypothesis for a certain event or phenomenon because a single hypothesis to explain a complex event or phenomenon is not enough and many incidences are required.

A complex event or phenomenon needs to generate multiple hypotheses that could explain the fact, and these are important when there are different possible causes for the event or phenomenon. So by generating multiple hypotheses, researchers can compare and test each one against the available evidence.

Hence, in real-life situations, it is generally not enough to make only one hypothesis for a certain event or phenomenon because a single hypothesis to explain a complex event or phenomenon is not enough and many incidences are required.

Learn more about the many hypotheses here.

https://brainly.com/question/17303477

#SPJ6

To solve this problem, we can use the binomial probability distribution, which calculates the probability of a certain number of successes (in this case, black guinea pigs) in a given number of trials (in this case, the number of offspring).

The probability of producing a black offspring from two heterozygous black guinea pigs is 3/4, since there are three possible genotypes that result in black fur (BB, Bb, and bB), and only one possible genotype that results in white fur (bb).

Using the binomial probability formula, the probability of getting two black offspring out of three is:

P = (3 choose 2) * (3/4)^2 * (1/4)^1

P = 3 * 9/16 * 1/4

P = 27/64

Therefore, the probability of producing two black and one white offspring among three is 27/64, or approximately 0.42.

Answer:

Biased.

Explanation:

Anecdotal evidence is described as the evidence that is based entirely upon an individual's personal experiences or observations.

As per the question, a claim based on such evidence is most likely to be biased as anecdotal evidence is based on a limited selection of examples that either support or refute the claim but not supported by any scientific or statistical analysis. Due to this undue bias, anecdotal evidence is not considered reliable as it displays the personal opinion, feeling, or experience of an individual. Thus, it may be used to negate the general statements but not to support r substantiate a claim or argument.

Answer:

This would be a parasitism.

Explanation:

This is where one side benefits and the other is hurt.

Answer:

When recording euthanasia be sure to note the date, animal identification information, confirmed or tentative diagnosis, euthanasia method and final disposition.

The euthanasia record is an important document for veterinary practices and should be maintained according to state and federal regulations and the policies and procedures of your practice.

When recording euthanasia, be sure to note the date, animal identification information, confirmed or tentative diagnosis, euthanasia method, and final disposition.

Another important thing to note is that euthanasia should be considered only when alternative management options are not available or have been exhausted, when quality of life is poor, and when euthanasia is in the best interest of the animal.

All reasonable steps should be taken to minimize pain and distress during the process.

For more such questions on euthanasia

https://brainly.com/question/685938

#SPJ8

Answer:

1. Nucleus

3. Stomata

5. Vacuole.

7. Mitochondria

8. Cytoplasm

9. Cell wall

2. Cell wall

4. Cell membrance

6. Organelles

According to the information, we can infer that the Independent variable: Temperature (specifically, the range of temperature). On the other hand, Dependent variable: Distribution of pikas. Additionally, Control: Pikas within their tolerance range of temperature and Constants: Other environmental factors, habitat conditions, and population of pikas.

In this experiment, the independent variable is the temperature, specifically the range of temperature. The researcher will manipulate and observe how different temperature ranges affect the distribution of pikas.

The dependent variable is the distribution of pikas. It refers to the geographical or spatial range in which pikas are found. The researcher will measure and analyze how the distribution of pikas changes in response to different temperature ranges.

To ensure test validity, a control group of pikas within their tolerance range of temperature needs to be included. This group will experience temperatures within the range they can tolerate, providing a baseline for comparison. By comparing the distribution of pikas in different temperature ranges to the control group, the researcher can determine the impact of temperature on their distribution.

To maintain validity, other environmental factors such as altitude, precipitation, vegetation, and habitat conditions should be kept constant across the experimental groups. Additionally, the population of pikas being studied should be consistent, without any significant changes in population size or genetic composition throughout the experiment. These constants help isolate the effect of temperature on pika distribution and minimize confounding variables.

Learn more about experiments in: https://brainly.com/question/15088897
#SPJ1

Answer: The A, B, and Rh antigens are located on the surface of red blood cells.

Explanation: