Carl's throat hurt. He could not swallow to eat so his mother took him to the doctor's. Doctor Roberts swabbed Carl's throat and
rubbed the swab on a Petri dish. "What's that for?" asked Carl. Doctor Roberts told him that many time severe sore throats are caused by a specific __________ and culturing Carl's throat will help to identify it. A) bacteria
B) fungi
C) protozoa
D) virus
Animal cells are typical of the eukaryotic cell, enclosed by a plasma membrane and containing a membrane-bound nucleus and organelles. Unlike the eukaryotic cells of plants and fungi, animal cells do not have a cell wall
