In typical conditions of 0°C - 1 atm 173.5 atm, a mole of just about any gas takes up 22.4 L.
What must proportion V of a helium-filled balloon weighing 5.0 kg be?The balloon's volume has to reach least 31 m3 en order to hoist the weight. Although this is the least volume needed, it should be noted that a higher volume would offer a bigger margin of organism .
Why does one mole of gas take up 22.4 litres?STP assumes a temperature of 273K and a pressure of 1atm. The volume of one mole of gas can be determined using the ideal gas equation. comprehensive step-by-step response One mole of typical particles at STP ($6.023 times 1023 dollars.
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Which of the following is a way to use a plant’s DNA in forensic science?
a.
A forensic scientist can use a plant’s DNA to prove a suspect was in the area of a crime.
c.
A forensic scientist can add a plant’s DNA to a DNA sample to make it large enough to test.
b.
A forensic scientist can use a plant’s DNA to identify a victim’s father.
d.
All of these are ways a forensic scientist can use a plant’s DNA.
Answer: I believe the answer is A using a plant's DNA to prove a suspect was in the area of a crime.
Explanation:
What is the origin of the term cell in biology?
Answer:
The Origins Of The Word 'Cell' In the 1660s, Robert Hooke looked through a primitive microscope at a thinly cut piece of cork. He saw a series of walled boxes that reminded him of the tiny rooms, or cellula, occupied by monks. Medical historian Dr. Howard Markel discusses Hooke's coining of the word "cell."
I need help with these if do thank you so muchh
A gene is a unit of heredity that is responsible for the inheritance of a particular trait from parents to offspring.
What are the principles of natural selection?The four principles of natural selection are:
Variation: Individuals within a population exhibit differences in their traits or characteristics.
Inheritance: Some of these variations are passed from parents to their offspring.
Selection: Individuals with certain variations that make them better adapted to their environment are more likely to survive and reproduce.
Time: Over many generations, the frequency of advantageous traits increases within the population, leading to evolutionary change.
A species is a group of individuals with similar physical and genetic characteristics that can interbreed and produce fertile offspring.
Genetic drift is the movement of alleles from one population to another due to chance events, such as the migration of individuals.
The term that refers to the evolutionary history of a species is "phylogeny".
Phylogeny is the study of the evolutionary relationships among organisms and their history of descent from a common ancestor. It is based on the comparison of anatomical, genetic, and other characteristics among different species.
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Can someone help me really fast please? When you give the answer please elaborate don’t just put a few words
1. We eat to obtain the nutrients and energy our bodies need to function properly.
2. The types of food animals in the ocean eat depend on their species and location.
Why is eating important?Nutrients like carbohydrates, proteins, and fats provide energy, while vitamins and minerals support various bodily processes.
Some animals, like plankton and krill, feed on tiny plants and animals floating in the water. Others, like sharks and dolphins, hunt and eat larger fish and squid. Some ocean animals, like sea turtles, feed on both plants and animals, while others, like whales, consume primarily krill and other small organisms.
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describes the impacts that you have on the natural habitats where you live. In constructing your post, be sure that you thoroughly address the following questions IN PARAGRAPH FORMAT:
What resources do you use? Consider the resources (ex. fuel, electricity, food, water, etc.) you use on a day to day basis, but also in the long-term.
Where does your garbage go? Not just the dump, but what do they do with it??
How does how much you drive affect the environment?
What about buying food?
How does this all have an effect on the natural environment?
How could you lessen the effect?
As individuals, we use various resources on a day-to-day basis, including fuel, electricity, food, water, and other resources. In the long-term, our usage can have a significant impact on the natural habitats surrounding us. The more we use resources, the more we contribute to the depletion of natural resources, which in turn can lead to the destruction of habitats.
Garbage disposal is another significant factor that affects the environment. Most of the garbage that we produce is sent to landfills, which not only takes up a lot of space but also pollutes the environment. The garbage disposal process, such as incineration, can also cause air pollution and release harmful gases into the atmosphere.
Driving, particularly long distances, can significantly impact the environment. The more we drive, the more fuel we consume, which in turn contributes to air pollution and greenhouse gas emissions, leading to global warming and climate change. Similarly, buying food also has an environmental impact. The transportation of food products from one place to another contributes to air pollution, and the use of fertilizers and pesticides in agriculture can contaminate soil and water resources.
All of these factors have a significant effect on the natural environment. The depletion of natural resources, the pollution of air and water, and the destruction of habitats all have significant impacts on the planet's biodiversity and ecosystem.
To lessen the effect, we can adopt more environmentally friendly practices. We can reduce our usage of resources by conserving energy, reducing water consumption, and using public transportation or carpooling. We can also reduce our impact on the environment by reducing the amount of waste we produce, recycling, and properly disposing of hazardous waste. Additionally, we can support local agriculture, which can reduce the transportation of food products and promote sustainable farming practices. By taking these steps, we can help preserve natural habitats and contribute to a healthier and more sustainable planet.
Select the one true statement.
1. Mitochondria direct cell activities by sending instructions to different parts of
a plant cell.
2. Chloroplasts break down sugar to release energy that a plant cell can use.
3. The cell wall makes a plant cell strong and rigid.
3. The cell wall makes a plant cell strong and rigid.
why do chemotherapy has its strongest side effects on the skin and the lining of the digestive tract?
All of the following statements regarding the Kyoto Protocol are true EXCEPT:
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
the treaty set different but specific targets of carbon dioxide reduction for various nations.
the treaty was replaced by the 2016 Paris Agreement.
the protocol was ratified by the United States.
no emission targets were set for developing countries.
Answer:
c
Explanation:
C) The protocol was ratified by the United States is not true.The Kyoto Protocol was an international agreement adopted in 1997 with the objective of reducing greenhouse gas emissions in order to combat global climate change.
The following statements about the Kyoto Protocol are true:
A) The treaty set different but specific targets of carbon dioxide reduction for various nations.
B) The treaty was replaced by the 2016 Paris Agreement.
D) No emission targets were set for developing countries.
However, the United States did not ratify the Kyoto Protocol, which was a major setback for the treaty's effectiveness.
Answer: 3rd option is not true
Explanation:
The United States did sign the Kyoto Protocol but it never ratified it, meaning it did not formally agree to be bound by its requirements. Therefore, the United States did not participate in the treaty's implementation.
20. Which sector creates the most fossil fuel emissions?
agriculture
industry
electricity generation
transportation
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Which label points to the part of chloroplast where chlorophyll molecules are found?
A. 1
B. 2
C. 3
D. 4
Answer: A I think
Explanation: Sorry if wrong
Chlorophyll molecules are primarily located in thylakoid membranes within chloroplasts. Here, they capture light energy to perform photosynthesis.The correct option is A.
The label that points to the part of the chloroplast where chlorophyll molecules are found is A. 1. These molecules are located in the thylakoid membranes, specifically in the photosystem complexes.
However, within a chloroplast, chlorophyll molecules are primarily found in structures called thylakoids. Thylakoids are flattened sac-like membranes arranged in stacks (grana) inside chloroplasts. Chlorophyll molecules are integral components of the thylakoid membranes where they absorb light energy for photosynthesis. It captures light energy from the sun and uses it to help convert carbon dioxide and water into glucose and oxygen in the photosynthesis process.
Therefor the correct option is A.
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Summers in Earth's Northern Hemisphere are warmest when:
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
the North Pole points toward Polaris, the current north star.
axial precession matches the axial tilt.
axial precession matches the orbital eccentricity.
the North Pole points toward Vega.
None of the answer choices accurately describe when summers in Earth's Northern Hemisphere are the warmest.
What is Hotness?
In physics, "hotness" is not a term that is used. The concept that is usually referred to in relation to temperature is "thermal energy", which is the total kinetic energy of the particles that make up a substance. When the thermal energy of a substance increases, its temperature also increases, which we perceive as the substance becoming "hotter".
The warmest summers in the Northern Hemisphere occur when the hemisphere is tilted toward the sun and receives the most direct sunlight. This occurs during the summer solstice, which happens around June 20-22 each year. The axial tilt is responsible for the seasons, and the precession of the Earth's axis does not have a significant effect on the timing of the seasons.
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Describe the texture of the marrow from the beef bone.
Biology question
Answer: Bone Marrow texture best described as a Thick Beefy Butter
Explanation: Raw Bone Marrow will smell fresh and slightly sweet. When cooked, its aroma deepens considerably to that of roasted fatty beef.
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The biologist shares his graph showing the results of an experiment that measured the concentration of zooxanthelle of shallow-water coral in picograma per cell.
The shallow water ecosystem depends on water temperatures below 30°C to maintain the symbiotic relationship between corals and zooxanthelle.
What is the relationship between water temperature and coral reefs?Water temperature has a significant relationship with coral reefs. Coral reefs are composed of tiny marine animals called coral polyps that build a calcium carbonate skeleton.
These animals live in a symbiotic relationship with photosynthetic algae called zooxanthellae, which provide them with food and give the reefs their vibrant colors. However, this relationship is sensitive to changes in water temperature.
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what is the difference between a 1950 food pyramid and a 2000 food pyramid
Which of the following did Mendel conclude about patterns of inheritance?
A) An organism inherits one gene in total
B) An organism inherits two genes of a given trait during gamete production
C) Similar forms of genes account for variation in the inherited traits.
D) An organism inherits one gene for each trait
The following Mendel concluded about patterns of inheritance : C) Similar forms of genes account for variation in the inherited traits.
What did Mendel conclude about patterns of inheritance?Mendel concluded that inheritance is determined by discrete units called genes, which are passed down from parents to offspring in a predictable manner.
He observed that some traits are dominant over others, and that these dominant traits can mask the expression of recessive traits. Mendel also proposed the Law of Segregation, which states that during gamete formation, the two alleles of a gene separate from each other so that each gamete carries only one allele for each gene.
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Answer:
B.
Explanation:
3. A mass spectrometer is used to get information from
(a) Plants
(c) Rocks
(b) Rubber
(d) Concrete
Answer: Rocks
Explanation:
the comet that hit jupiter raised fiery plumes large enough to incinerate the ________
Answer:
The comet ventured too close to Jupiter's mighty gravitational pull two years ago and was pulled apart into a score of large fragments and thousands of small ones. As each fragment hits Jupiter's dense atmosphere, it is stopped as if it had hit a brick wall. In an instant, its initial speed of 130,000 miles per hour is reduced to zero, and practically all of its gigantic kinetic energy is converted to heat -- so much heat that a titanic explosion results. In the case of each of the largest fragments, this is equivalent to 250 million megatons of TNT. (The largest hydrogen bomb ever detonated produced a blast equivalent to about 58 megatons.)
Explanation:
How do the
populations in a community depend on
each other?
There are many distinct ways in which populations in a community are interdependent, and these interdependencies form the cornerstone of the intricate interactions that exist between various species in an ecosystem.
What is population?A population is a collection of people belonging to the same species who coexist and communicate in a certain geographical region. Depending on the species and the habitat it lives in, a population can have anything from a few to millions of members.
Examples of how different groups in a society are interdependent include:
Food webs and chains: In a community, many creatures rely on other organisms for nourishment. For instance, plants are the main providers of the food that feeds herbivores, which are then consumed by carnivores. A food web is formed by the links between several food chains, which is a network of energy flow.
Pollination: To enable fertilization and the development of seeds, many plants rely on pollinators like bees, butterflies, and birds to move pollen from one plant to another.
Decomposition: species that break down dead organic materials, such as bacteria and fungus, recycle nutrients and make them accessible to other species in the ecosystem.
Competition: Within a community, populations may clash for resources like food, water, and space. This rivalry may restrict population expansion and have an impact on how species are distributed throughout an ecosystem.
Symbiotic interactions: In a community where two or more species coexist and are dependent on one another for existence, there are symbiotic interactions between the many populations that make up that community.
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Which statement best describes how eukaryotic cells are able to replicate such larger amounts of DNA.
Answer:
D (I think)
Explanation:
A - No, it replicates everything
B - I think it's referring to okazaki fragments (?) which is on the lagging strand so no.
C - No, in interphase they prepare the for meiosis.
D - the only reasonable statement left
20. Phylogenetic tree are used to help show which creatures are most closely related to each other. In the diagram below,
common ancestor. The line from the chicken and the line from the dinosaur connect, so they would have a common
the red dot shows the most common ancestor between a chimpanzee and a human. When two lines come together, there is a
ancestor. All the lines at the bottom connect, this would be the least common ancestor, but they are still related.
Chimpanzee
Human Chicken
Dinosaur
Most recent common
ancestor
Answer: a
Explanation: the explanation is
Temperature sensors are found where in the body?
O The pancreas and gallbladder
O The hypothalamus and the skin
O The adrenal gland and pituitary gland
O The lungs and heart
O The liver and kidneys
Which statements about renewable and nonrenewable resources are true? Check all that apply.
There are two types of resources: renewable and nonrenewable. While a nonrenewable resource has a finite supply, a renewable resource can replenish itself at the rate of use.
Wind, timber, and other renewable resources are examples, while coal and natural gas are examples of nonrenewable resources.
Renewable resources are abundant while nonrenewable resources are scarce.
A nonrenewable resource is a natural substance that is not replenished at the rate at which it is consumed. While renewable sources are good for the environment, they also pollute.
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Josie notices that it gets dark at night, but is light again every morning when she wakes up. What is actually happening
when it gets lighter in the mornings?
Why does fragmented forest habitat increase the risk of predation on bird nests by cats, dogs, raccoons, and other animals? Responses Birds will prefer to make their nests at the edges of forest habitat. Birds are forced to build nests on the ground instead of in protected trees. Predators have an easier time spotting bird nests in fragmented habitat. Predators are more common at the edges of fragmented habitat.
The borders of fragmentation habitat are where predators are more prevalent.
What impact does deforestation have on bird breeding habits?Bird populations are directly impacted by deforestation, mostly due to the destruction of their habitat. A bird's environment serves as its home, and deforestation robs them of their habitat. Many birds are unable to procreate when they are removed from their native habitat, which ultimately causes a reduction in their number.
What impact does deforestation have on animals and birds?Due to the drastic changes it causes to vast areas of ecosystems and habitats, deforestation is one of the land uses that has the greatest impact on migrating birds. The effect of land usage on tropical forests may clearly be seen from above.
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I need help pleaseeeeee
Answer:
Ecosystem and biome only.
Explanation:
This is because the communities and population are the counts of how many and what species of animals live in the specific community or population. The abiotic factors are things that aren't living, so animals wouldn't be counted.
Which phrase best describes what happens to the matter in nail polish remover as it evaporates?
it is destroyed
It disappears
it is converted into energy
it changes form
it changes form phrase best describes what happens to the matter in nail polish remover as it evaporates
What transpires to the substance in nail paint remover when it dries up?Cooling is caused by evaporation. While evaporating, a substance's particles absorb heat energy from its environment and transform into vapour. The low boiling point of acetone is 56 C. Acetone readily evaporates by absorbing heat from our hands when we hold it in our hands.
If nail paint gets on skin, it dries off very quickly. So there is no chemical reaction or change in the substance's identity; rather, liquid nail paint turns into gaseous nail polish. So, this is a bodily alteration.
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With respect to climate forcing, which one of the following is a positive forcer?
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
carbon dioxide
sulfur dioxide
oxygen gas
helium
Answer:
the answer is sulphur dioxide
With respect to climate forcing, carbon dioxide is a positive forcer. The correct option is A.
Thus, because of its capacity to trap heat in the Earth's atmosphere and so contribute to the greenhouse effect, carbon dioxide is regarded as a positive climatic forcing agent. The atmosphere contains more carbon dioxide as a result of human activity, principally the burning of fossil fuels, which raises Earth's temperature and causes climate change.
A significant greenhouse gas that affects climate change on Earth is carbon dioxide. It has been shown that one of the main causes of anthropogenic climate change and global warming is the rising atmospheric concentration of carbon dioxide.
Thus, the ideal selection is option A.
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Compare the average rate at which geothermal and solar energy reach earths surface? As a policy maker in pursuit of solving world energy problems, which one would you pursue?
Answer:
The average rate at which geothermal and solar energy reach Earth's surface are significantly different.
Geothermal energy is generated from the heat of the Earth's core, and it is estimated that the total power output of geothermal energy is around 44 TW (terawatts). However, only a small fraction of this power, about 3.3%, is estimated to reach the Earth's surface. This means that the average rate at which geothermal energy reaches the Earth's surface is around 1.45 TW.
On the other hand, solar energy is generated from the radiation of the sun, and the total power output of the sun is estimated to be around 386,000 TW. While some of this energy is absorbed by the Earth's atmosphere and reflected back into space, the remaining energy is estimated to be around 174 PW (petawatts). This means that the average rate at which solar energy reaches the Earth's surface is around 174,000 TW.
As a policy maker in pursuit of solving world energy problems, solar energy would be the more viable option, due to its significantly higher rate of energy reaching the Earth's surface. Additionally, solar energy is a renewable resource that does not produce greenhouse gas emissions, making it an environmentally friendly option. Geothermal energy, while also renewable and clean, may not be as easily accessible in all areas and may require significant investment in infrastructure for harnessing its energy.
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