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zhenek [66]
3 years ago
5

Which organelle contains DNA? A. Golgi C. Rough ER B. Nucleus D. Smooth ER

Geography
2 answers:
ExtremeBDS [4]3 years ago
6 0

nucleus

Known as the cell's “command center,” the nucleus is a large organelle that stores the cell's DNA (deoxyribonucleic acid).

Sidana [21]3 years ago
5 0

Answer:

B. Nucleus

Explanation:

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What substance prevents the escape of heat radiated from earths surface?
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It might be the amosophere, it prevents the air or oxegen from escaping so it just might prevent heat too!
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After the Curiosity rover photographed some mudstone in an area nicknamed "Yellowknife Bay", it moved on to new outcrops. A scie
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The presence of mustones by curiosity rover indicates chances of ancient life.

Explanation:

  • The Yellowknife bay is a geologic formation of the Gale crater on the planet Mars and NASA named the rover as a curiosity. Its primary goal was to assess the potential habitability and whether the mars are capable to support life.  
  • The presence of the mudstones in the geologic depression area on mars leads to its name as Yellowknife i.e the capital of the northwest territory of Canada.
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3 years ago
Which electromagnetic wave has the shortest wavelength? Describe the energy level and frequency of this wave.
djyliett [7]

Answer:

Gamma rays

Gamma rays have the highest energies, the shortest wavelengths, and the highest frequencies. Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation.

3 0
3 years ago
Over one day, you make observations of constellation positions described below:
Darya [45]

Answer:

b. Aquarius

Explanation:

  • The Aquarius is a constellation of the zodiac and is situated between the Capricorn and the pieces and is representation of the water and has a large size and stars are less than the magnitude of 2 and it can be seen during the evening in the northern hemisphere an appears in the southern sky and south of the equator.
6 0
4 years ago
The diagram shows the amount of phosphorus measured in teragrams (1 teragram = 1×10^12) grams), in the various reservoirs of the
SpyIntel [72]

Answer:

This is the best explanation for why there is such a small amount of phosphorus that moves into aquatic systems:

1. Phosphorus is highly stable in the atmosphere and remains there for long periods of time.

Explanation:

The phosphorus first cycle is the process by which the phosphate ion passes in very small amounts through the lithosphere from volcanic aeorosols, then to the hydrosphere, where it stays from 20,000 to 100,000 years in the ocean, and finally to biospherere, where rain and erosion helps washing the phosphorus from the rocks into the soil. So, raining is the beginning of the phosphorus´s second cycle, so it is also, the slowest one of the matter cycles that is why the natural total background phosphate levels in several bodies of freshwater range from 0.005 to 0.05 mg/L. Phosphorus remains mostly on land and in rock and soil minerals.

Although abundant on our planet´s sedimentary rock crust and in human body, phosphorus to commercialize is only found in minerals therefore, phosphates mining activity and calcium heating is the only way to get it in its pure elemental form. It is an essential nutrient for plants and animals and a big percentage of the mined phosphorus is used to make fertilizers.

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3 years ago
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