Can overload the immune system, causing you to become sick, and open to sicknesses.
Answer:
To swim faster
Reducing the drag. As with all the other tips here this one is not about how strong you are as the right technique smoothes out your swimming using your strength in a much more efficient way.
Work on your kicks.
Secrets of good propulsion.
Balance
Slightly spread your fingers.
The term which describes any relationship in which two species live closely together is called SYMBIOSIS.
Http://www.livescience.com/22537-skeletal-system.html
The organism or product that is being described in the sentence
above is chalk. This is the product that is formed with the use of the remains
of calcium carbonate. It has a mineral calcite and useful for writing or
drawing in smooth and writable surfaces.
