So its basically [I think] saying if you were to treat a dog with pity and show no shelter of compassion then you will also treat humans the same way.
Answer:
Not having enough money or a big enough house or not having proper health care for them
Answer:
Yes, a complete sentence is something that has a beginning and an end with a period, so it doesn't really matter how long or short it is.
Explanation:
"I have a really good day."
"This is a sentence."