Answer:
The lids of the Petri dishes were inadvertently left on while being sterilized
Explanation:
- The process of eliminating any microbe from a particular object to achieve a sterile aseptic environment is termed as sterilization.
- Sterilization mainly aims to either remove, kill or make any microbe inactive by using various means such as irradiation, heat, pressure, etc.
- In the given question radiation is used to sterilize the Petri dishes and thus, if sterilization is successful there should not be any contamination.
- However, since there is contamination present amongst the bacterial colonies growing on agar plated in the Petri dishes this shows that the sterilization has not been done successfully and a possible reason for this could be that while sterilizing the<em> lids of the Petri dishes were kept on. </em>
The community might die off .
hope that this helps bro .
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Answer:
Each individual is a member of a population. Each population is made up of a group of individuals of the same species that occupy the same environment and interact with each other. Many different populations together make up a community, and many different communities interact with one another in an ecosystem.
Answer:
30,000
Explanation:
you welcom hope this helped you guys!
Hopefully this will help you out
