1) pathogen
2) viruses
Some bacteria are not harmful to your body hence not all of them are pathogens
If you're talking about eukaryotic cells then it's the cell wall. If it's a prokaryotic cell sometimes the slime layer secreted by some bacteria may harden and form a capsule around the bacterial cell.
Hope i helped!
Answer:
scientific theories must be tested by more than one individual multiply times for it to become scientific law
Contracture develops when normally elastic connective tissue are replaced with nonelastic fibrous tissues.
Contracture is the prolonged state of shortening or tightened tissue. Contracture develops when the normally stretchy tissues are replaced by non stretchy fiber-like tissue. This tissue makes it hard to stretch the area and prevents normal movement. It mostly occurs in the skin, the tissues underneath, and the muscles, tendons, ligaments surrounding a joint.