bacteria invades organisms, makes them sick and causes disease. bacteria is also really helpful in many was though. for example, bacteria are decomposers. they also fight off bad bacteria and digest food. they are used in medicine and in foods like cheese, yogurt and sour cream. they even are used to produce electricity and are used for botox.
They can cause infextions and diseases
a bacillus bacteria
Bacteria can be helpful by deleting bad viruses and harmful by killing you
Bacteria can be both harmful and helpful
Probably to humans, I wouldn't eat dead leaves. Well yes you wouldn't eat dead leaves but in an eco way they are helpful.
There are harmful to all organisms, but some bacteria are helpful in many ways.
They can cause infextions and diseases
Yes. Most bacteria is not harmful to us such as bacteria in a yogurt, but some bacteria is harmful.
Only some bacteria is harmful. The ones that are are the ones that give us diseases.
They can cause diseases. Another way is that they can invade organisms.
Only 1% of bacteria is harmful to humans
not all the bacteria harmful. bacteria that are harmful is i dont know sorry. have a nice DAY!!
Harmful bacteria will harm you. Helpful bacteria will help you.
Blue green bacteria has color pigments and bacteria doesn't and bacteria is made with many products for humans to use and blue green is harmful they live inc ponds ,mrivers , lakes
the harmful bacteria live in air,human body etc.
Bacteria can make you get a harmful diseese, and you could dye. ( I think )
It could kill sum of ur organs den u! And I don't kno anoder