Answer: Ammonia
E. coli<span> is a type of bacteria that lives in the intestines of humans and animals. Some types of E. coli are harmless while some types can make you ill.</span> Meat becomes contaminated during slaughter when infected animal intestines or feces come in contact with the meat.
To prevent E. coli contamination, ammonia is being used in some meat fillers. <span>Although ammonia is not regarded as a disinfectant, it is an eco-friendly cleaning solution than other chemical-based products</span>
Answer:
Answer in order: C, A, B
Explanation:
But I'm not the brightest at this subject, but what I did is just observed what I thought the answers were thoroughly by using the keywords and letters and then matching them together to make sense. I remember doing this, but let me know if it's wrong!
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>
Answer:
The correct answer is option A. "Abdominal radiograph".
Explanation:
Abdominal radiograph, or abdominal x-ray, is a diagnosis tool at which an image of the abdominal cavity is obtained based on the exposure of a small dose of ionizing radiation. The patient described in the question could be suffering from different conditions based on its symptomatology. The first tool to help to make a proper diagnosis is to perform an abdominal radiograph, to see any internal evidence of the possible cause of the occasional bloody diarrhea and abdominal pain.
A signal cascade is a series of chemical reactions which are triggered by a stimulus acting on a receptor that is then transduced to the intracellular space through second messengers. Finally, effector molecules receive the signal causing a cellular reaction to the initial stimulus. A signal cascade is very useful because it facilitates and accelerates the communication between cells that could be in different parts of a living organism. This communication is vital for cell processes in complex multicellular organisms.
