The correct answer is d. "Regeneration" means "forming new cells," and signifies that the disease-causing bacteria cells are multiplying. When there are more of these cells, there is a higher chance for antibiotic resistance (making it take longer for the antibiotics to work). Once there is a smaller concentration of these bacterial cells, the antibiotics become more effective.
Movement of water across a membranes
A. Releasing a stimulus when hormones increase or decrease I think
Erosion Prevention Techniques
Plant grass and shrubs. ...
Add mulch or rocks. ...
Use mulch matting to hold vegetation on slopes. ...
Put down fiber logs. ...
Build retaining walls. ...
Improve drainage. ...
Reduce watering if possible. ...
Avoid soil compaction.