How do plants protect or defend themselves from predators since they can't run away?
(pg. 76-77) Plants make oral contraceptives to defend themselves. Some plants smell bad, taste bad, or poison those those insects that eat them. When insects attack, numerous plants fight back with a chemical arsenal that can kill insects, make them stop feeding on them, or disrupt their growth.
(T/F) True or False. Estrogenic substances always pose a hazard to human health or to the development of babies.
(pg. 79) False. Plants containing estrogen mimics may be beneficial in some instances and dangerous or hazardous in other instances.
What effects does DDE (the form of DDT that lasts the longest in the body fat of humans and animals) have?
(pg. 85) It depletes or reduces the hormone levels by accelerating their breakdown and elimination.
What is DDT usually regarded as?
(pg.85) It is usually regarded as a classic estrogen mimic that elevates or increases hormone levels.
What hazards do humans share with polar bears?
(pg.106) Along with polar bears, we humans share the hazards of feeding at the top of the food web. The persistent synthetic chemicals that invaded the polar bear's world has also invaded ours.
If we were willing to put up a couple thousand dollars for check-ups or tests in our body fat, about how many chemical contaminants would we find in our body fat?
(pg.106) Regardless of where he or she lives, anyone who would be willing to put up the money for the tests would find at least 250 chemical contaminants in his or her body fat.
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