Ricin Is One of the Newest Chemicals Used as a Nerve

question 25

Multiple Choice

Ricin is one of the newest chemicals used as a nerve agent.Which of the following are potential medical uses for ricin?

• A)to prevent certain cancer cells and in bone marrow transplants
• B)to kill cancer cells and in bone marrow transplants
• C)in bone marrow transplants and to prevent certain cancer cells
• D)to kill cancer cells and in renal transplants

---

Definitions:

Coastal Zone

The interface where the land meets the ocean, encompassing shoreline environments as well as adjacent coastal waters, characterized by its unique biological and physical attributes.

Abyssal Zone

A deep-sea environment located at depths of 4,000 to 6,000 meters, characterized by high pressure, low temperatures, and complete darkness.

Benthic Zone

The ecological region at the lowest level of a body of water such as an ocean or a lake, including the sediment surface and sub-surface layers.

Littoral Zone

The shallow nearshore area of a body of water, where sunlight can reach the bottom, supporting diverse aquatic plants and animals.