Question

when some bacterial diseases enter the body, what specifically do the bacteria do that make them harmful to the body? they make the organs swell until they are unable to perform their proper function. they produce harmful chemicals in or around cells. they cause the immune system to stop working. they slow down the flow of blood. actinobacteria aquificales bacteroidetes chlamydiales

Explanation:

Pathogenic bacteria produce harmful substances (toxins) in or around host cells, which disrupt normal cellular function and cause damage. The other options are not the specific, primary mechanism of harm for most bacterial diseases: organ swelling is a secondary immune response, bacteria do not universally stop the immune system, and slowing blood flow is not a core harmful action of disease-causing bacteria.

Answer:

They produce harmful chemicals in or around cells.