Which of the following is the embryo-derived tissue of the placenta? (2 points) 1) Amniotic fluid
2) Chorionic villus
3) Ductus venosus
4) Ductus arteriosus

Option 2) Chorionic villus is the correct answer.

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.

lysosome is this part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.