amoeba hand-drawn image

ameba amoeba anatomy animal art artistic bacteria biology cell contractile cytoplasm design diseases doodle drawing drawn ectoplasm education endoplasm fission food graphic hand illustration medical medicine membrane micro microbe microbiology microorganism microscopic nucleus organelle organism pen proteus protista protistm protozoa protozoan pseudopod pseudopodia pseudopods school science sketch structure study unicellular vacuole vector