Viruses - they are unable to replicate outside of a host cell.
Depends on the type of disease, antivirals for a virus, antibiotics etc and your own immune system (Antibodies)
Substances used for treating diseases include pharmaceutical drugs, antibiotics, vaccines, antiviral medications, chemotherapy drugs, and biologics like insulin and monoclonal antibodies. These substances work by targeting specific disease-causing agents or processes in the body to alleviate symptoms, cure infections, or manage chronic conditions.
all organisms carry out reproduction but it depends on the type of reproduction, asexual reproductino or sexual reproduction, and or if its in a eukaryotic are prokaryotic cell or organism.
Depends...
Depends on the mollusk. Most use sexual but some snails are hermaphrodites and can perform asexual reproduction.
Reproduction and death.
it depends if your body is strong or healthy it does but does not kill the diseases
it depends on the substance
Depends on the disease, but if you are discussing about diseases in general, then yes.
Depends on what diseases the cattle had and whether they were transmissible to humans or not.
It could be for reproduction or growing, it depends on what organism it is.
it depends on the substance