Because they are tired ...
breathe heavily = gasp, huffing and puffing, breathing, labored breathing, hyperventilation
When you do any type of exercise, your heart rate speeds up so more blood can reach the muscles you are using.
because of oxygen,nitrogen
they breathe in the same way as daytime animals
Pant.
Plants breathe in carbon dioxide and breathe out oxygen; animals breathe in oxygen & breathe out carbon dioxide.
I don't really know
All mammals can breathe with lungs.
well you need animals to have plants cause plants breathe and so do animals. animals breathe what plant exhale and we breathe what plants exhale.
no
in and out, in and out.
well i breathe deeply and then bend and SNAP