Answer:
Depends on the situation Usually the hardest would be blood samples of the Unknown Subject. Again It depends on the situation.
<span>methanogens
halophiles
thermoacidophiles</span>
Answer:
Water is a limited resource. It is needed for all living things and must be managed well to ensure we have enough for our needs and to protect our environment.
by gene activation
ESCs divide into two cells: one is a duplicate stem cell (the process of self-renewal) and the other daughter cell is one which will differentiate. The daughter cells divides and after each division it becomes more specialized.