Ecosystems need producers because they are the start of the food chain.
Producers are consumed by first consumers, the second consumers and so on.
Answer:
Water
Message me if you need a better explanation! :)
<span>The diencephalon transmits sensory data
among the </span><span>brain sections
and manages several autonomic functions of the </span>peripheral
nervous system<span>. It also links the anatomy of the </span>endocrine
system with the nervous system and function in
coexistence with the limbic system structures
to produce and control memories and feelings.
