The interaction between the biosphere and hydrosphere is that the hydrosphere provides water for the biosphere to function, grow, and live. Animals (biosphere), fish (biosphere) need water (hydrosphere) to live and swim.
Answer:
Macromolecule OR nucleic acid
Explanation:
It is one of four main types of macromolecules found in all forms of life, and its full name is deoxyribonucleic acid.
Best bet is macromolecule, but this is a very vague question so nucleic acid could also be correct.
Maybe Anxiety or reflex action of our bosy to the situation
