Answer:
1st is correct
Explanation:
At its simplest, a dog's digestive system is a long tunnel that runs from their mouth to the anus. Food goes in at the mouth and travels through this tube and at various stages is broken down and either absorbed into the body or excreted as waste at the anus.
The sets of items listed can be <span>be arranged to transform electrical energy into mechanical energy, the best answer is C. Battery, Wire, and iron.
It will help you.</span>
The answer is C. Output device