Which of the following is a function of the placenta? : mixing the blood of the mother and the fetus protecting the fetus from drugs, such as alcohol, in the mother's body providing nutrients to the fetus cushioning and protecting the fetus

Your answer should be: Providing nutrients to the fetus, cushioning and protecting the fetus. Mixing the blood of the Mother and Fetus would not protect him/her from drugs because if it is in the Mother's system then it will affect the Fetus.

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.