Answer: 
- Lead, cobalt, arsenic and selenium appear to pass the placental barrier by a diffusion mechanism. It was also found that the mercury levels in cord blood were almost double those of the mother, suggesting that the foetus may act as a filter for the maternal mercury levels during pregnancy.
Explanation:
- Have a terrific day! <3
- Make sure to thank & rate, it’s always appreciated! <3
Turn of the light or drink some milk like 2% milk 1% milk, or low fat milk. any type of milk you have!
Answer:
a cold disease, because symptoms are not visibles.
Explanation:
the CURANDEROS were the "native doctors" for the natives during Colombus conquest.
Answer:
I would say D.
Explanation:
I say that because all of that stuff helps keeps you safe and protected