Explain what endocrine disruptors (EDCs) are, and provide 2 examples of EDCs that are found in the environment. Explain why endocrine disruptors are a problem for humans, and discuss why they have not been completely banned by the United States government.

Explanation:

Endocrine disruptors (EDCs): These are chemicals that can interfere with endocrine or hormonal systems by altering hormone levels, affecting the synthesis or metabolism of hormones or by changing the way hormones elicit their functions. These disruptions may lead to cancerous tumors, birth defects and other developmental disorders in humans. EDCs are also naturally occurring or man made chemicals that are released into the environment. Humans are exposed to EDCs through ingestion, inhalation or direct contact through skin. Wildlife are exposed to EDCs through food and water consumption. Examples of EDCs are pesticides (e.g., atrazine and vinclozolin) and surfactants (e.g., octyphenol).

Why these chemicals have not been banned by the United State government is because some of them are of economical importance. Example is BPA, which is one of the most high production volume chemicals in the world and these chemicals are widely used in so many products and its very difficult to banned.

Group of drugs and substances e,g birth pills which affects/ disrupts  normal functioning of  hormones in the body are  are called Endocrine distruptors.  They may be natural or synthetic ,They exhibit their effects by causing over stimulation  or inadequate response of the body cells and organs to their effects. They may also interfere with the receptors peculiar to a particular hormone  sensitivity,or they may cause over or under secretion of hormones.

Examples are  Synthetic Oestrogen as   birth pills

and polychlorinated biphenyls.

Collectively theses substances can cause malformation during development as hormones regulates and coordinate  most  growth and development stages.

they may alter the sequence of events of reproductions which may disrupts fertility.

Some may produce carcinogenic effects from mutations of cells.

some may affects the normal functioning of the nervous systems leading to neurological disorders.

They may affect immune response by interfering with certain proteins.

why they have not been completely banned by the United States government.

This is largely  due to deficiencies in the  legislation in the USA., to  select which  distruptors to cancel based on non-voluntary cancellation, rather than threshold safety as observed in EU.

Explanation:

answer leukemia,lymphoma,aplastic anemia;

the correct answer choices are a- b- and d