tests
In this context, a test is the term for a foraminifera's shell. Foraminifera are a group of single-celled organisms that build a shell-like structure called a test, which is typically made of calcium carbonate or other materials.
In this context, a test is the term for a foraminifera's shell. Foraminifera are a group of single-celled organisms that build a shell-like structure called a test, which is typically made of calcium carbonate or other materials.