Answer:
This question have two parts.
Question 1. Is a 0.185 M aqueous solution of sodium sulfate, Na2SO4, hypertonic, hypotonic or isotonic to red blood cells?
Answer:
Hypotonic because sodium sulfate is a detergent which can cross the lipid bi-layer.
Question 2. If normal red blood cells were suspended in this Na2SO4 solution, what would be the expected outcome?
Answer:
Hemolysis (Bursting of Red blood cells) will occur due to excessive movement of water inside the cell resulting from sodium sulfate solution.
if you are interested to know more according to scientist read this research paper.
Ann N Y Acad Sci. 2005 Jun;1048:451-2.
The reason why sharks can swim fast is that unlike most fish, sharks have tails that are not horizontally symmetrical . Instead , the top of a shark's tail protrudes further back than the bottom , giving the shark lift while swimming and making it "spring" forward at speed.
Most fish make a single water "ring" that moves backward at the end of their tail's stroke but sharks are thought to produce two rings because of their asymmetrical tail which bespeaks a more efficient propelling action.
It has also been discovered that sharks can raise the tiny teeth-like structures called placoid scales on their skin to create tiny wells across the surface of their skin which reduces drag just like the dimples on a golf ball, thus enabling the shark move forward faster.
Answer:
Rounded it should be about 8.95
Explanation:
but in normality its 4, 8.9523
Answer:
Check the explanation
Explanation:
Average weight before selection =2.5 kg
Average weight after selection = 5.5 kg
Average weight in the next generation =3.5kg
= 
R= Mean weight in the next generation - mean weight before selection
= 3.5-2.5 = 1.0
S= Mean weight after selection -mean weight before selection
= 5.5 - 2.5 = 3.0
= = 
= 0.33
