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Do plant cells have DNA?

Plant cells use the same genetic code as other organisms, but the overall structure of a plant cell is somewhat different from other eukaryotes. The main difference is that plant cells have chloroplasts. Chloroplasts are the small organelles that perform photosynthesis, the process of converting light energy into chemical energy. Plant cells also have firm cell walls that help maintain a rigid structure in the overall organism.

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Is AgCl soluble in water?

AgCl dissolves at .0014 grams per liter at 57 degrees Fahrenheit, 0.0016 grams per liter at 68 degrees Fahrenheit, 0.0020 grams per liter at 77 degrees Fahrenheit, 0.0040 grams per liter at 108 degrees Fahrenheit and 0.0218 grams per liter at 212 degrees Fahrenheit. Silver chloride is also soluble in ammonia, ammonium chloride, concentrated HCl, concentrated H2SO4, sodium chloride, alkali cyanide, NH4CO3, KBr and sodium thiosulfate. It is not soluble in alcohol or in dilute acids.

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How much does a forklift weigh?

Forklifts weigh so much in part due to the need for a counter weight toward the back to balance heavy loads carried in the front. According to the United States Department of Labor, the manner in which weight is distributed on a forklift alters the amount of weight the machine is able to safely carry. Forklift operators should make sure loads weighing near the maximum load weight are carried as low as possible to prevent the machine from tipping.

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Is fracking contributing to the rising amount of earthquakes throughout the Midwest?

The USGS shows a strong link between increased seismic activity and regions where fracking wastewater has been disposed of underground. In parts of Oklahoma, it notes that seismic activity has increased by 70 times since fracking activity began. Looking at the central and eastern U.S., the trend toward higher seismic activity continues.\nFrom 1973 to 2008, there was an average of 21 earthquakes of magnitude three or greater. Yet in 2014 alone, there was a recorded 659 magnitude three or greater earthquakes recorded. Most of these earthquakes were between magnitudes three and four, not enough t..

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Where does glucose enter the blood?

Disaccharides are combinations of two monosaccharides. HowStuffWorks states that enzymes in the digestive tract break disaccharides into their component parts, allowing for the bloodstream to absorb the carbohydrates. The digestive system also breaks down more complex carbohydrates, such as those found in grains and potatoes, into glucose molecules to allow for absorption into the bloodstream. Sugar is the common term that refers to both monosaccharides and disaccharides, while many people know complex carbohydrates as starch.

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How is metamorphic rock formed?

Under extreme pressures, such as between two colliding tectonic plates, the minerals of a metamorphic rock group together and align to form foliation, which appears as stripes in the rock. One example of a heavily foliated rock is gneiss.\nAlternatively, highly heated areas, such as near magma chambers, produce vastly different metamorphic rocks. One example is hornfels.\nAnother area for metamorphism is at a subduction zone where oceanic plates collide with and bend under continental plates. Because these high-pressure areas are near the ocean, they are cooler and produce different metamorphi..

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What is the tensile strength of copper?

This high ductility is due to the electron arrangement of the copper atom, which has a filled d-shell with one s-orbital electron above it. This makes its metallic bonds relatively weak. Copper shares this property with certain other metals such as silver and gold.\nCopper's ability to be pulled into thin wire makes it ideal for electrical wire and jewelry. Copper is soft, however, and is often alloyed with other metals such as zinc to provide strength.

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What is the difference between speed and velocity?

The speed of an object refers to how fast an object is moving across a distance. It can be calculated by dividing the distance traveled by the time it took to travel it. Velocity includes both a speed and a direction. An example of an average speed during a trip would by 50 miles per hour while the corresponding velocity might be 50 miles per hour directly north. Speed and velocity are both the same only for a stationary object.

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How much energy is lost at each trophic level?

In general, the more fertile the habitat, the more trophic levels it can support. Because energy is lost with each trophic level, the BBC explains that the number of possible trophic levels for any ecosystem is limited. Animals of the fourth trophic level only represent about one - one thousandth of the original energy, and by the time the fifth trophic level is reached, only about one - ten thousandth of the original energy remains in the food chain. Commercial farming operations try to minimize these inefficiencies to maximize profits.\nTropic levels lose energy due to several inefficiencies..

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What is one unit of electricity in kilowatts?

Electricity is normally sold in units of electricity or kWh. Each electrical device has its own power rating. For example, an immersion heater has a power rating of 3000W while a freeze has a power rating of 150W. Power refers to the energy consumption rate and is measured in watt or W. One kilowatt is equivalent to 1000W.By identifying the electrical devices that consume the most energy at a person's home and controlling energy consumption, one can reduce the amount of money spent on units of electricity, which are shown on the utility bill.

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