The cell as a system contains the organelles sites of most cells active. Assembly line where workers do Endoplasmic Reticulum
The fertilizers used by farmers can have negative effects on aquatic ecosystems because there is every possibility that the runoffs from the fields can create an algal bloom in the nearby water body. This algal bloom can have a very negative effect on the living organisms of the aquatic body. I hope it helps.
Chemical digestion involves breaking down the nutrients into smaller cells
Physical digestion is using physical movements such as chewing and swallowing
Sleeping on the stomach is "prone," on the back its "supine."
I would say that it is B. thinner.