Choose the Proper Item Below for the Following Statement

question 49

Multiple Choice

Choose the proper item below for the following statement.
-arepressor protein can shut down transcription by binding here

• A)​operon
• B)​operator
• C)​promoter
• D)​riboswitch
• E)​regulator protein

---

Definitions:

Osmoregulation

The process by which organisms maintain the balance of water and electrolytes in their bodies to sustain life.

Marine Invertebrate

Organisms without a backbone living in marine environments.

Freshwater

Water that contains minimal amounts of dissolved salts, found in rivers, lakes, streams, and groundwater, essential for drinking, agriculture, and habitat for many organisms.

Buoyancy

The upward force exerted by a fluid that opposes the weight of an object immersed in it, enabling the object to float or to seem lighter.