cientists have noticed a disturbing trend in the freshwater ecosystems in North America: a large number of male fish are found to contain female egg cells growing inside their testes. The feminization of male fish is called intersex, and its exact cause is still baffling many scientists. Many studies have shown that intersex can be induced when male fish are exposed to endocrine disruptors. An endocrine disruptor stimulates or inhibits the endocrine system, causing either an increase or decrease in hormone production. However, it is easier to demonstrate the direct cause and effect in a laboratory environment where the fish are only exposed to a single endocrine disruptor. In nature, there are many other variables such as low oxygen levels or warmer water temperatures that could also cause feminization in fish. Identify two reasons why we should be concerned about the feminization of fish.
cientists have noticed a disturbing trend in the freshwater ecosystems in North America: a large number of male fish are found to contain female egg cells growing inside their testes. The feminization of male fish is called intersex, and its exact cause is still baffling many scientists. Many studies have shown that intersex can be induced when male fish are exposed to endocrine disruptors. An endocrine disruptor stimulates or inhibits the endocrine system, causing either an increase or decrease in hormone production. However, it is easier to demonstrate the direct cause and effect in a laboratory environment where the fish are only exposed to a single endocrine disruptor. In nature, there are many other variables such as low oxygen levels or warmer water temperatures that could also cause feminization in fish. Identify two reasons why we should be concerned about the feminization of fish.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
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Scientists have noticed a disturbing trend in the freshwater ecosystems in North America: a large number of male fish are found to contain female egg cells growing inside their testes. The feminization of male fish is called intersex, and its exact cause is still baffling many scientists.
Many studies have shown that intersex can be induced when male fish are exposed to endocrine disruptors. An endocrine disruptor stimulates or inhibits the endocrine system, causing either an increase or decrease in hormone production. However, it is easier to demonstrate the direct cause and effect in a laboratory environment where the fish are only exposed to a single endocrine disruptor. In nature, there are many other variables such as low oxygen levels or warmer water temperatures that could also cause feminization in fish.
Identify two reasons why we should be concerned about the feminization of fish.
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