Wow, that is deep question for the first one of a new school year! If I answered that only from the viewpoint of a scientist I would have to say yes. Especially in biology we see that the world and the species in it are constantly in flux.
However,as a Christian I have great comfort in knowing that one thing never changes and that's God's unfailing love for me. He has promised to never leave us or forsake us. This belief allows me to live with confidence in a world that seems to always be in a state of constant change.