Fossils of the shells of _______ have distinct shapes that make them particularly useful for dating geological layers.
A) foraminiferans
B) diatoms
C) paramecia
D) slime molds
E) prokaryotes

Question

Quizplus · Accepted Answer

Foraminiferans have distinct and diverse shells that are often well-preserved and easily recognizable in geological layers, making them useful in dating those layers. Diatoms are also commonly used, but their shells are usually made of silica, which can easily dissolve in certain environmental conditions. Paramecia, slime molds, and prokaryotes typically do not produce shells or other hard parts that can be fossilized.

Fossils of the Shells of _______ Have Distinct Shapes That