Assuming you mean living matter
All living matter is produced by other living matter
Answer:
An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environments known as
stray founder
Explanation:
Your answer is C,
Our body stores calcium, and other minerals
our body temp is also regulated by our skeletal system
and our skeleton protects vital organs
