all body systems are affected by bacteria.
In the Immune system
Microorganisms are found in just about every conceivable environment on Earth.
yes
cardiovascular, lymphatic, and nervous systems.
They are both. Some microorganisms can kill us. But they also play an essential role in our body - so much so that even a HEALTHY person has about 10 microorganisms for every cell.
Not really. We can live without some organs found in the systems but not the entire system. We can live without a spleen or a gallbladder but not the systems they are part of (circulatory and digestive).
"ubiquitous" means "found everywhere", so the ubiquity of microorganisms is the concept that microorganisms are found everywhere.
Digestive and respitory systems
normal flora
Microorganisms are found in just about every conceivable environment on Earth.
what are some good things microorganisms do for the ecosystem
Many microorganisms are found naturally in fresh and saltwater.
Smooth muscles are found in many parts of the body. They are mostly found in the digestion and waste disposal systems of the body. The stomach and intestines are smooth muscles.
The suitable temperature for the growth of microorganisms is the body temperature of the humans
There are many microorganisms that will decompose a whale. These microorganisms include bacteria that are found out in the ocean.
protists
Protozoa.
The lymphatic system helps fight off microorganisms.