The Principal Sources and Approaches Used to Gather Ecological Evidence

question 50

Multiple Choice

The principal sources and approaches used to gather ecological evidence include ______.

• A) Observations, experiments, and mathematical models
• B) Observations and experiments
• C) Experiments
• D) Mathematical models

---

Definitions:

Spinal Cord Injury

A traumatic or disease-related injury to the spinal cord that affects communication between the brain and the body, potentially leading to paralysis and other disabilities.

Urinalysis

A test of urine to evaluate the presence of substances that indicate various health conditions, such as infections, kidney disease, and diabetes.

Specific Gravity

A measure of the density of a substance compared to the density of water. It is used to assess the concentration of substances in liquids like urine.

COPD

Chronic Obstructive Pulmonary Disease, a group of lung conditions that obstruct airflow and make breathing difficult.