32 million Americans are exposed to toxic chemicals in the workplace regularly. CERTAIN HAZARDOUS CHEMICALS ARE CONSIDERED TO BE ONE OF THE MAJOR CAUSES OF BIRTH DEFECTS. When these workers use harmful chemicals, those toxins can be absorbed through the skin, inhaled or ingested by the mother or the father before or during pregnancy. That can affect the parents’ ability to have healthy children. They may have issues having children or may have children with birth defects. These types of chemicals that cause birth defects are known as teratogen and/or genotoxins. A teratogen is an agent that interferes with the development of an embryo or fetus and causes birth defects. A genotoxin is an agent that damages cellular DNA resulting in mutations. Chemicals can be both a teratogen and a genotoxin. Industries with workers who are most at risk of being exposed to toxic chemicals include high-tech manufacturing and semiconductor manufacturing, agricultural and farming, and energy production workers in coal, fracking, and oil and gas. These laborers are commonly exposed to toxins in chemicals, solvents, and pesticides and heavy metals — all chemicals known to cause birth defects.
You would want to make sure that you have controlled the variables properly, and if you determine that you did then you would repeat the experiment to be sure of the results.
I would say that the bacteria who live inside one's gut would constitute very small organisms that are extremely small and inhabit the gut as home and also feed off it to survive and in this case probably have a symbiotic relationship with our bodies as they help us to break down and digest food.
The <span>statement about ice melting that is true is that the </span><span>temperature of the ice increases as it melts. The answer is letter D. The rest of the choices do not answer the question above.</span>
