The hollow bones of birds which keep birds light weight for flying is an example of adaptation. These hollow bones are also called pneumatized bones which mean they're filled with space for air.
Hope this helps!
Answer:
In science, an inactive state that helps an organism store energy is <u>hibernation.</u>
3 bases make up a codon that specifies for a specific trait.
H2o2 is one! I'm not sure about others.
