Answer: behavioral teratogens.
Examples of teratogens are viruses, drugs, chemicals, stressors and even malnutrition. Although teratogens always pose a risk for developing embryos, some do not cause immediate damage. Other factors should also be considered. Factors like the developmental stage the pregnancy, dose, and frequency of exposure, and the genetic makeup of the embryo.
The role of the testicles on the human male is to make children, they are a reproductive organ, they hold sperm which fertilizes a female egg. For physical development the produce hormones and also testosterone. Hormones and testosterone are both very important in developing and adult males.
B, a heart attack results when blood flow to the heart is suddenly disrupted.
Tar, carbon monoxide, arsenic, vinyl chloride, and/or formaldehyde
