Final answer:
Rodent and bird mites are small, generally measuring less than 1.0 mm in length, but some mites and ticks can be much larger, up to 20 mm.
Step-by-step explanation:
Rodent and bird mites are typically quite small organisms, often measuring no more than 1.0 mm in length. However, certain species of mites and ticks can be larger, reaching sizes of 10-20 mm. These mites are adaptable and inhabit diverse environments, both aquatic and terrestrial.
Many species of animals, including insects, amphibians, reptiles, and birds, as well as mammals such as mice, chipmunks, and deer, can be hosts to these mites. Specific animals like white-footed mice are known to be reservoirs for diseases like Lyme disease. Ticks, which are closely related to mites, are typical vectors for diseases and adult ticks can range from 2 mm to 4 mm in length.