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rusak2 [61]
2 years ago
9

the volume of a human brain is normally about 1200cm3. the osmolarity of solutes in the cerebrospinal fluid surrounding the brai

n is normally about 300mM. how does the volume of the brain change when the cerebrospinal fluid osmolarity drops to 280mM
Biology
1 answer:
qwelly [4]2 years ago
8 0

Answer:

yesterday was a temporary password is goes by

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Human impact on one system leads to changes in more of Earth’s systems.
Sedbober [7]
True, our ecosystem is not independent. Everything depends on everything else to survive. :)

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3 years ago
Which of the following shows the difference between aerobic and anaerobic respiration respiration?
Svetradugi [14.3K]
I think the correct answer is b sorry if wrong
3 0
2 years ago
What variable influence the process of fermentation? A. Like aerobic cellular respiration, fermentation produces ATP molecules.
Dmitriy789 [7]

Answer:B

Explanation:

Its the extraction of energy from carbohydrates in the absence of oxygen.a metabolic process that produces chemical changes in organic substrates through the action of enzymes.

6 0
3 years ago
A model for a​ company's revenue from selling a software package is ​R(p)equals=−2.52^2400​p, where p is the price in dollars of
dsp73

A model for a​ company's revenue from selling a software package is ​R(p)=-2.5p² + 400​p, where p is the price in dollars of the software. What price will maximize​ revenue? Find the maximum revenue.

Answer: p = $80,  R = $16,000

Step-by-step explanation:

The maximum is the y-value of the Vertex.

Step 1: Use the Axis-Of-Symmetry (AOS) formula to find x:

x=\frac{-b}{2a}

R(p) = -2.5p² + 400

     a= -2.5  b=400

p=\frac{-(400)}{2(-2.5)}

         = \frac{-400}{-5}

        =80

∴ In order to maximize the value, the company will sell the software package for $80

Step 2: Find the maximum by plugging the p-value (above) into the given equation.

R(80) = -2.5(80)² + 400(80)

         = -16,000 + 32,000

         = 16,000

7 0
3 years ago
Match the given behaviors of water with their correct rationale. Use your observations about water and the reading you have done
kap26 [50]

Answer:

Heat energy first breaks hydrogen bonds before it increases movement of water molecules - High specific heat

As water freezes, the hydrogen bonds form a crystalline lattice which keeps the molecules at a consistent distance leading to a density lesser than liquid water- Ice floats on water

A large amount of energy is needed to convert liquid water, where the molecules are tied by hydrogen bonds, to water vapor, where they are not - High heat of vaporization

Hydrogen bonds between water molecules keep the molecules "sticking together." - Cohesion

Explanation:

Water is a molecule composed of two atoms of hydrogen and one atom of oxygen. Water is a very unique substance with properties that are unexpected of a molecule its size. Some of the unique properties of water include:

Its high polar nature, High-specific heat, High heat of vaporization, the lower density of ice. One of the reason for these unique properties is strong cohesive forces between water molecules.

Cohesion: Hydrogen bonds between water molecules keep the molecules "sticking together."

Polarity: Water molecules are polar, with partial positive charges on the hydrogens, a partial negative charge on the oxygen because oxygen is more electronegative than hydrogen. As a result, water is a good polar solvent.

High specific heat: Heat energy first breaks hydrogen bonds before it increases movement of water molecules.

Lower density of ice: As water freezes, the hydrogen bonds form a crystalline lattice which keeps the molecules at a consistent distance leading to a density lesser than liquid water, therefore, ice floats on water

High heat of vaporization: A large amount of energy is needed to convert liquid water, where the molecules are tied by hydrogen bonds, to water vapor, where they are not.

5 0
3 years ago
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