Answer:
I think option two will work best.
Explanation:
Hope that. this is helpful.
Have a nice day.
True
Once being carried to the capillaries that’s where the exchange of oxygen and carbon dioxide occurs
They are both highly selective,most of the time what binds to them. Think of it as a lock and key, if the key fits the lock and it turns then it does what it needs.
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:
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