A scientist was observing a specimen under a microscope. He obtained the specimen from pond water. He observed that the specimen was egg-shaped, had hairy structures all over its body, and was covered by a membrane. He also noticed two nuclei in the specimen’s body. To which phylum did the organism belong?

Question

Mercury · Answer

A) sarcodina
B) ciliophora
C) apicomplexa
D) euglenoid

do a quick search on these species, but I will tell you to focus especially on "hairy structures"