Explanation:
It gets the heart rate up and the blood flowing and releases endorphins which raises our energy level
Answer: d: the placental wall will block the bacteria from entering the foetus.
Explanation: the placental has a protection function of guarding the foetus against harmful substances and microorganisms through its semipermeable membrane.
The placenta provides barrier to bacterial infection with an exception of treponema syphilis and the tubercle bacillus.
The food wouldn't have the full nutritional value anymore and (depending on what it is) you could be at risk for food poisoning or simply an upset stomach.