Groundwater Can Be Dated Using

question 108

Multiple Choice

Groundwater can be dated using:

• A) isotopes
• B) microscopic fossils
• C) dye tracing

---

Definitions:

Cyclic AMP

A second messenger molecule important in many biological processes, such as signal transduction and intracellular communication.

Adenylyl Cyclase

An enzyme that converts ATP to cyclic AMP, playing a critical role in cell signaling pathways.

Endocrine

Pertains to the system of glands that release hormones directly into the bloodstream to regulate body functions.

Chemical Secreted into Blood

Substances released by cells or glands into the bloodstream to act on distant target organs or tissues.