Select which of the following are mechanisms used by pathogens to avoid host defenses and to successfully colonize the host. -Producing siderophores to obtain iron from the host for growth.
- Producing IgA proteases for avoiding secretory IgA.
-Avoiding secretory IgA by rapid turnover of pili.
-Producing adhesions for damaging host cells.
-Producing toxic substances to suppress host responses.

Producing toxic substances to suppress host response

videntify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."