Answer:
Ectoparasites include: Ticks and Fleas.
Step-by-step explanation:
Generally viruses, bacteria and fungi that causes diseases in plants and animals are parasites.
These parasites are known to live outside a body. Generally parasites that live outside surface of the host are called external parasites or ectoparasites.
Also, some plants like mistletoe and dodders are plants that exist as external parasites on other plants. Organism like ticks, fleas, bugs, aphids and leeches do visit their hosts once in a while to suck their body fluids. Aphids particularly feeds on plant saps while others listed above suck on bloods of their hosts.