According to This Figure,which Organisms Have the Highest Concentration of PCBs,and

question 7

Multiple Choice

According to this figure,which organisms have the highest concentration of PCBs,and why?

• A)herring gulls,because they are at the bottom of the food chain
• B)smelt,because they are in the middle of the food chain
• C)herring gulls,because they are at the top of the food chain
• D)phytoplankton,because they are at the bottom of the food chain

---

Definitions:

Clinical Expertise

The profound knowledge and skill that healthcare professionals acquire through years of practice and study in a clinical setting.

Research Evidence

Information obtained through systematic investigation, often used to support or refute hypotheses within the scientific community.

Behavioral Conditioning Therapies

Treatment approaches based on the principles of behavioral psychology, focusing on changing specific behaviors through reinforcement and punishment.

Cognitive-behavioral Therapies

A group of psychotherapeutic treatments that help individuals understand the thoughts and feelings that influence behaviors.