Answer:
If the petri plates are kept open for the longer duration of time then there are chances of cross contamination.
The contamination can be defined as growth of undesired microbes in the petri dishes or tubes which is no longer useful for the experiment.
The tube if kept open will develop the growth of contaminants in it. It can be cross contamination as well.
To avoid contamination the tubes and dishes should not be kept open for a longer duration of time.
The main structure of an animal cell are:
-Plasma
-The membrane
-Nucleus and organelles
Answer: low temperature, high-pressure
Faults is a fracture in a rock that formed by the rock-mass movement. The fracture is made because the rock rigidity or friction are preventing the movement, make the pressure buildup until it enough to break the rock. This condition will be easier in low temperature and high-pressure condition.
Explanation:
The small number behind each element symbol designates the number of atoms of each element in a chemical formula. If there is no number, it is assumed there is only one of those elements. A large number designates how many units there are of that compound.
