Dehydration because animals can only live so long with water
It is sensors :) i hope this helped you :)
<span>the answer will have to be the second choice cause it seems more correct</span>
Plants: Orchids
Animals:Tiger
Archaebacteria:Euryarchaeota
Eubacteria:Cyanobacteria
Fungi:Sac fungi
Protists:Radiolaria
Deoxygenated blood could get to body cells which would be useless since oxygen is needed for functioning
