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What is probably the most common teratogen world wide? Malnutrition. About how much weight do doctors recommend a woman gain during pregnancy? 25-30 lbs. What are some factors contributing to malnutrition? 40% of the world's population lives on less than two dollars a day, meaning they can't receive the healthy diet they need.


The four most common teratogens are tobacco, alcohol, medications and illegal drugs. Teratogens are substances that could harm a developing fetus by affecting growth and causing birth defects or death. The use of tobacco during pregnancy is dangerous because the smoke causes the blood vessels to constrict.


According to the text, what is the most common teratogen worldwide? a. malnutrition b. tobacco c. alcohol d. infectious disease


Probably the most common teratogen worldwide is _____. develop a faster heart rate and move more frequently. According to the text, when a pregnant mother becomes highly stressed, a fetus may _____. germinal. After fertilization, the first 2 weeks of pregnancy is called the _____ period.


Solved One of the most common causes of waterborne illness worldwide is: Solved The most common human teratogen is __________. Solved From a global perspective, which of the following is the most common teratogen to affect pregnancies


The most common teratogen worldwide is _____. a. malnutrition b. rubella c. alcohol d. tobacco


Common Teratogens. and Their Effects What is a teratogen? l Is any factor, chemical or physical, that adversely affects the fertilized ovum, embryo or fetus. l Is any agent that can induce or increase the incidence of a congenital malformation. What is teratology? l is the study of abnormal development in embryos and the causes of congenital malformations or birth defects Effects of teratogens ...


Some teratogens are benign until they build to "threshold concentration" levels in the mother and then their effects are seen. Some teratogens are dangerous throughout a pregnancy and some are dangerous only at specific points of embryonic development. The only safe course of action is to actively avoid known teratogens before and during pregnancy.


A teratogen is any agent that causes an abnormality following fetal exposure during pregnancy. Teratogens are usually discovered after an increased prevalence of a particular birth defect. For example, in the early 1960’s, a drug known as thalidomide was used to treat morning sickness. Exposure of the fetus during this early stage of development resulted in cases of phocomelia, a congenital ...


Teratogens are drugs, chemicals, or even infections that can cause abnormal fetal development. There are billions of potential teratogens, but only a few agents are proven to have teratogenic effects.