Answer:
The Answer would be AATGCG.
Explanation: The reason is because A pairs with T and C pairs with G.
Arthropoda and molluscs have open circulatory systems - meaning haemolymph (Their equivalent to blood) directly bathes the tissue, and isn't enclosed in blood vessels, as seen in a closed blood system, as in humans for example.
Drinking water might help keep the kidneys in homeostasis.
Answer: By us people breathing in oxygen and breathing out carbon dioxide.
