Both plant and animal cells have membranes so whatever chemical reactions they have going inside the cell, it is regulated and maintained. Membranes help separate the internal environment from the external environment.
Hope this helps - I'm currently in cell biology so this question is interesting
Answer:
But sometimes it can linger for weeks or months after you've been sick with a viral infection, such as the flu. This is known as post-viral fatigue. You may not know that you have it because your are asymptomatic.
Explanation:
D. Waterlogged souls are good for anaerobic bacteria because they have low oxygen levels
Cushing syndrome.
This syndrome perfectly fits the description listed above.
Hope this helps!