Answer:
The correct answer is 6.67 %.
Explanation:
The average osmotic pressure of the brain is 300 mM
Given the concentration of solution is 280 mM
Difference is 300 - 280 = 20 mM
This difference is sufficient to stimulate osmosis and make water move from CSF to the brain until the concentration becomes similar.
Also, it is known that the volume of brain is about 1200 ml on an average,
Volume of fluid moved because of osmosis = 20 mM / 300 mM * 1200 ml = 80 ml
Percent swelling of brain = 80 ml / 1200 ml * 100 = 6.67 %
Answer:
Plant cell. | Animal cell
______________________________|_____________________________
<em> 1. Cell wall is present </em>|<em> 1. Cell wall is absent</em>
<em> 2. cytoplasm is not as desnse </em>|<em> 2. Cytoplasm is dense</em>
<em> as animal cell </em>| <em> 3. Valcoule is genrally absent but if </em>
<em> 3.A large vacoule is present </em>| <em> present they are smaller in size</em>
<em> 4.Plastids are usually present </em> | <em> 4. Plastids are absent</em>
<em> 5.centrosome is absent </em>|<em> 5. Centrosome is present</em>
<em>____________________________________________________________</em>
<em>Hope this helps :D</em>
Answer is c she is figuring out what would happen when it’s added to different liquids
The sun provides a handy benchmark for describing other stars. The mass of this solar system's sun gives us a unit for measuring other stars' masses. Similarly, the sun's luminosity and surface temperature define the center of the Hertzsprung-Russell Diagram (H-R Diagram). Plotting a star on this chart reliably predicts other qualities of the star, such as mass and age. The main sequence phase of a star's life cycle is that time during which hydrogen fusion takes place in its core. But in terms of the H-R Diagram, "main sequence" also refers to a roughly diagonal, slightly S-curved line stretching between the upper-left and lower-right corners on which main sequence stars chart. They maintain a predictable relationship between luminosity and temperature: the brighter, the hotter. Both of these traits increase with a star's mass; a star indicated closer to the upper-left corner will be "heavier" than our sun, while lower-right main sequence stars will be "lighter."
Red Giants
Should astronomers plot a newly discovered star in the upper-right corner of the H-R Diagram, being both bright yet cool, they'll immediately know what phase of its life cycle the star is enduring. A red giant's core, hot enough to fuse helium and even heavier elements, has pushed its shell layers so far out that they can cool into the red spectrum. They owe their great luminosity not to their temperature, but to their size: bigger stars radiate more light energy.
Answer:
It can determine the life span of an organism. Things such as natural selection, environmental factors, predators and prey all weigh heavily on the life span on an organism.
Explanation:
none.