I believe a possible option for this would be an antibiotic, many specialized kinds interfere with the growth and development of microbes including bacteria.
Erosion and deposition have a few things in common. First They both deal with rainwater and they both have to do with rivers
Various types of tissues may be organized to form an organ
An aphotic zone is a zone where light can be received from the sun (or other sources of light).
For example in the ocean, it will be the zone that begins a 200m deep and goes to the bottom of the sea.
Hope it's helpful, have a nice day :)