What is a unifying feature of all animals,but is not seen outside of the animal kingdom?
A)They are terrestrial or secondarily aquatic.
B)They are unicellular.
C)They have immobile gametes.
D)The nature of their small subunit rRNA gene sequences is different.
E)They have a cell wall.

Question

Quizplus · Accepted Answer

The nature of their small subunit rRNA gene sequences is different. This unifying feature is known as the animal-specific signature sequence and is found in all animals but not in any other kingdom.

What Is a Unifying Feature of All Animals,but Is Not