The protozoa were considered to be microscopic animals because
A) they are bigger than bacteria.
B) of their capacity to cause disease.
C) of their ability to move.
D) some have proteinaceous cell walls.
E) some reproduce through conjugation.

Question

Quizplus · Accepted Answer

Protozoa are considered to be microscopic animals because they are unicellular organisms that are capable of movement, which is a characteristic typically associated with animals.

Answer: A, B, D, E are incorrect
 The fact that protozoa are bigger than bacteria (A), can cause disease (B), have proteinaceous cell walls (D), and reproduce through conjugation (E) are not unique characteristics of animals and do not classify them as microscopic animals.

The Protozoa Were Considered to Be Microscopic Animals Because