FALSE
All organisms use this "mechanism" to defend their food and shelter. Birds protect their nest just like all other animals and they fight for food.
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Cacti and other succulents can adapt to dry climates. They are able to store water in their leaves, while others store water in the roots or trunks. The waxy cuticle helps prevent water loss.
I believe it is the crust
C: from what I can see in the graph
