Can somebody help me with what type of sentence this is. (Complex),simple ,or compound

He found a pencil stub in a drawer and ripped up a grocery bag.

My dog sleeps beside my bed he wakes me up in the middle of the night to let him out. complete, run-on sentence or comma splice

Alittle later than his thisbe had, and he could see what surely were the tracks of a wild beast left clearly on deep dust. his face grew ashen. and when he had found the bloodstained shawl, he cried: "now this same night will see two lovers lose their lives: she was the one more worthy of long life: it's i who bear the guilt for this. which statement best describes how the order of events creates tension?

What are the most plentiful organisms in an ecosystem