I am a unicellular, prokaryotic organism whose cell wall contains peptidoglycan. I can be found on most surfaces, including your face and your gut. I consume my food from outside sources. To which kingdom to I belong?

I am a heterotrophic organism composed of many cells. Inside each cell I have a variety of membrane-bound organelles, but the mitochondria is my favorite because it supplies me with energy. I reproduce asexually and I have cell walls made of chitin. To which kingdom do I belong?

I am composed of many cells, all of which contain a nucleus and are surrounded by a cell wall made of cellulose. Each of my cells also contains chloroplasts, which capture energy from the sun and use it to power a chemical reaction that produces my food. I reproduce sexually, but some of my friends that are in the same kingdom as me reproduce asexually. To which kingdom do I belong?

I am a very simple organism, if I do say so myself. I'm made up of a single cell, and it doesn't even contain a nucleus! However, most people would be shocked to hear where I live. I live in the thermal vents of the ocean floor where temperatures can reach up to 750 degrees Fahrenheit. To which kingdom do I belong?

I am an organism that is different from most because I don't have any cell walls around the many cells that compose my body. Although each of my cells contain a nucleus, none of them contain any chloroplasts. To which kingdom do I belong?