Explanation:
a living system is a system in an organism consisting of organs. each organs carry out different functions to ense life processes can be carried out effectively. The function of the organs are determined by the cells which make up the tissues. The connections are important to remove wastes/toxins out of the body and help absorb nutrienys, in some cases produce hormones as a form of homeostasis to ensure the body remains in a healthy optimised state constantly.
Tar sands pits , sorry if I got this wrong
Arthropods has the bilateral symmetry !
so answer is B !
C. Pepsin is the hormone that is produced mainly in the stomach and regulates secretions of gastric juice.
The layer of the sun can only be seen during a solar eclipse is corona
