YOUR WELCOME AHHAHAHAHAHHA
Placenta protects the fetus during the germination period where the mother's system cares for itI think the closest possible answer to this question is Oxygenates the fetal blood, delivers nutrients, removes wastesThank you for your question. Please don't hesitate to ask in Brainly your queries
Answer:
Because some effects will occur.
Explanation:
The positive test which was the result for the organic molecules for the water sample showed that there is some change occurs in water sample by adding of organic molecules due to which the results of the test comes positive. If there is no change occurs in the water sample by adding some organic molecules so the results will come negative which means no effect.
Is what ????????? is it a statement