Soil detritivores, like earthworms, ingest detritus and decompose it. They also do not ingest foreign materials and instead absorb bone matrix and minerals. Some who eat the cheese prefer not to ingest the maggots. Scorpions can ingest food only in a liquid form; they have external digestion. Mice may ingest the spores and become infected. Cats groom so often that they often produce hairballs from the fur they ingest. Not only fish and free-living organisms can ingest microplastics. Dendritic cells also reside in tissues and ingest pathogens by phagocytosis. These lizards acquire most of the water they need from the vegetation they ingest. In addition, many species can ingest pathogens while biting, and transmit them to future hosts. When insects feed on the plant, they ingest the insecticide. Consequently, they must ingest it, usually as a component of proteins. Grazing animals are most likely to ingest this plant and induce cyclopia in offspring. Thus, we estimate that 99.99% of the pesticides humans ingest are natural. On average, humans ingest about 600 micrograms of tellurium daily.