Nematoda worm under a microscope, type Protostomia. There are both parasitic and free-living
Keywords
worm,
worm,
parasite,
acne,
colony,
cell,
education,
egg,
invertebrate,
medicine,
zoology,
alien,
creature,
danger,
disease,
infection,
laboratory,
magnification,
microbiology,
microorganism,
microscopic,
organism,
parasitic,
duck pond,
research,
scarey,
scientific,
transparent,
water,
under,
move