Answer:
D
Explanation:
In multicellular organisms, the body is a system of multiple, interacting subsystems. Subsystems are groups of cells that work together to form tissues. Interactions are limited to the circulatory, excretory, digestive, respiratory, muscular, and nervous systems.
I think causing a physical change
Answer:
Detritus is important too wetland ecosystems, because it provides a food source for a variety of aquatic organisms.
Explanation:
brainlist
The most strict policy regarding waste management in our area is segregation. Waste materials must be segregated according to their class. It's a strict policy since garbage will not be collected if they are not segregated. This is effective because it allows for the easy reuse and recycle of materials.