Why Is DDT Still A Controversial Issue? DDT was canceled because it persists in the environment, accumulates in fatty tissues, and can cause adverse health effects on wildlife (4). In addition, resistance occurs in some insects (like the house fly) who develop the ability to quickly metabolize the DDT (1). Why is DDT still a
What Is Toxicity With Example? Toxic substances can be: chemical – found naturally in the environment (for example, lead), manufactured by humans (for example, dioxin) or made by organisms (for example, chemicals made by fungi that act as toxins to insects, snake venom, or poison ivy) What is a chronically toxic substance? Chronically toxic chemicals
What Is A Chronic Health Effect? A chronic health effect is an adverse health effect resulting from long-term exposure or a persistent adverse health effect resulting from a short-term exposure. What are examples of chronic effects? Common chronic health effects include skin rash, bronchitis and cancer. A common chronic health effect is cancer resulting from
What Is Chronic Physiological Toxicity? Chronic toxicity is the development of adverse effects as the result of long term exposure to a toxicant or other stressor. It can manifest as direct lethality but more commonly refers to sublethal endpoints such as decreased growth, reduced reproduction, or behavioral changes such as impacted swimming performance. Which is
What Did Rachel Carson Study In College? Carson early developed a deep interest in the natural world. She entered Pennsylvania College for Women with the intention of becoming a writer but soon changed her major field of study from English to biology. Did Rachel Carson study zoology? Rachel Louise Carson Carson graduated from Pennsylvania College