<span>In order for individuals best suited for growth and reproduction in a particular environment to contribute disproportionately to the next generation natural selection must take place. Natural selection is one of the basic mechanism of evolution. This mechanism leads</span> to adaptations and adaptations contribute to survival and reproduction.
Taproot and Fibrous roots
The most common way cells deal with hypertonic and hypotonic environments is by osmosis through their semi-permeable membrane. The cells attempt to neutralize the hypotonic or hypertonic environment by absorbing/releasing water from/to the more concentrated system.
Guard cell o is ordered to opening and closing of stomata.