amoeba labeled . single cell animal structure scheme.

ameba amoeba anatomy animal bacillus bacteria bacterium biology cell contractile creature cytoplasm design diagram digestion droplet ectoplasm educational endoplasm engulfed fat food germ illustration isolated labeled life lysosome medical membrane microbe microbiology microorganism microscopic mitochondrion molecular nature nucleous nucleus organism pseidopod pseudopods scheme school science smooth structure unicellular vacuole vector