(b) Others were very sluggish, the parasitic Sporozoa, like the malaria organism which the mosquito introduces into man's body.
The Sporozoa vary greatly in appearance, organization and life-history.
In some instances the parasite is always present in the host and some hosts may harbor several different species of Sporozoa.
The great class of the Protozoa furnish amoebae, members of Sporozoa and Infusoria.
The class Sporozoa is divided into five small groups or orders.
Sporozoa Spo·ro·zo·a (spôr'ə-zō'ə) or Spo·ro·zo·e·a (-zō'ē-ə)
A large class of parasitic protozoa, most of which reproduce sexually and asexually in alternate generations by means of spores. They are frequently transmitted by bloodsucking insects to different hosts, where they cause many serious diseases, such as malaria and coccidiosis.