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Mandarinka [93]
2 years ago
10

Q: Which is a reason why cells remain small?

Biology
1 answer:
Alex73 [517]2 years ago
8 0

Answer:

b. as cells grow their ratio of surface area to volume decrease

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What is the boundary between the earths lower mantle and the upper mantle called ?
Alenkasestr [34]

Answer:

i have trusted my best to answer

Explanation:

Edit

The upper mantle of Earth is a very thick layer of rock inside the planet, which begins just beneath the crust (at about 10 km (6.2 mi) under the oceans and about 35 km (22 mi) under the continents) and ends at the top of the lower mantle at 670 km (420 mi). Temperatures range from approximately 200 °C (392 °F) at the upper boundary with the crust to approximately 900 °C (1,650 °F) at the boundary with the lower mantle. Upper mantle material which has come up onto the surface is made up of about 55% olivine, 35% pyroxene and 5 to 10% of calcium oxide and aluminum oxide minerals such as plagioclase, spinel, or garnet, depending upon depth.

5 0
3 years ago
Explain how using renewable and recyclable materials can benefit the environment.
Ierofanga [76]
Instead of burning coal to power our country we could use solar panels. As long as we have the sun we will have "free" energy.

Instead of continuing to mine for metals, we could recycle metals and then less greenhouse gases would be released into Earth's atmosphere.
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3 years ago
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If you were trying to build a soundproof room, which of the following materials would you choose in order to absorb the most sou
gulaghasi [49]

Coefficients of Absorption for Common Materials

Perforated acoustic ceiling material 60%

Heavy curtains 50%

Carpeting 20%

Wood 5%

Plaster 3%

Clay tile 3%

Concrete 2%

The answer is C. Heavy curtains

7 0
3 years ago
What extraembryonic membrane allows for the symmetrical development of the embryo?
tresset_1 [31]

The extraembryonic membrane allows for the symmetrical development of the embryo Reconstruction debate that had federalism debate that had been an issue since the 1790s.

Reconstruction failed by most other measures: Radical Republican legislation ultimately failed to protect former slaves from white persecution and failed to engender fundamental symmetrical to the social fabric of the South. When President Rutherford B. federalism debate that had been an issue since the 1790s almost symmetrical . Hayes removed federal troops from the South in 1877, former Confederate officials and slave returned to With the support of a conservative Supreme Court, these newly empowered white southern politicians passed black codes, voter qualifications, and other anti-progressive legislation to reverse the rights that blacks had gained during Radical Reconstruction. The U.S. Supreme Court bolstered this federalism anti-progressive movement federalism  with decisions in the Slaughterhouse Cases, the Civil Rights Cases, and United States v.

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6 0
2 years ago
Iven the equation representing a nuclear reaction in which x represents a nuclide: which nuclide is represented by x?
kaheart [24]

The nuclide represented as X is thorium and this is an alpha decay where an alpha particle is removed off.

<h3>What is nuclide?</h3>

A kind of atom or nucleus which is represented by a specific number of protons and neutrons.

The equation given represents an alpha decay. In an alpha decay, an alpha particle is removed off.

The atomic number of the parent nuclide is more than the daughter nuclide by two units and the mass number of the parent is more than that of the daughter nuclide by four units.

Thus, the x is thorium.

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