P Chromatophora Secretes Around Itself a Test, or Case, of Plates

question 57

Multiple Choice

P. chromatophora secretes around itself a test, or case, of plates made of silica. Which of the following is another rhizarian that would be in competition with P. chromatophora for the silica needed to make these plates, assuming limited quantities of silica in the environment?

• A) radiolarians
• B) foraminiferans
• C) all other amoeboid cells
• D) all other rhizaria
• E) diatoms

---

Definitions:

Setup Time

The amount of time required to prepare equipment, machinery, or systems for operation or production.

Manufacturing Cycle Efficiency

A measure of the efficiency of the production process, typically calculated as the value-added time as a proportion of the total throughput time.

Value-Added Time

The duration during which a product or service is being modified or enhanced to increase its value to the customer.

Throughput Time

The elapsed time from when production is started until finished goods are shipped.