Ecology (Exam 4)

Question 1

Bioaccumulation

Answer 1

The increase of a toxin in an organism

Question 2

Biomagnificaton

Answer 2

The increase in concentration of a toxin in a food chain, not an organism

Question 3

superfund site

Answer 3

A location with such a serious toxin presence that the Fed Gov has specifically dedicated funds to address the problem. NJ has the most

Question 4

Lead

Answer 4

Lead cannot be broken down, once it leaks into the environment, it stays. It can bioaccumulate and biomagnify. it’s especially toxic to the nervous system. Children are often victims of lead poisoning- resulting in. lower I. Q, behavior and learning problems and there’s no cure. SYMPTOMS CANNOT BE REVERSED.

Question 5

PCB (Polychlorinated Biphenyls)

Answer 5

• is a synthetic compound used in the manufacturing of many electronic devices
• released into the environment during the manufacture+ disposal of electrical components
• bioaccumulates+ biomagnifies ESPECIALLY in aquatic systems
• causes cancer
• banned in Us in 70’s
• still in the environment