The answer would be 2 placenta. A thin walled sac that surrounds the fetus during pregnancy. The sac is filled with amniotic fluid(liquid made by fetus) and the amnion(the membrane that covers the fetal side of the placenta)
Answer:
7.helpful 9.They always have warning labels
Explanation:
7.They were stopping the bad habits and bringing new ones.
9.They never forget.
The heavier the vehicle, the more work the brakes must do to stop it and the more heat they absorb. But the brakes, tires, springs and shock absorbers on heavy vehicles are designed to work best when the vehicle is fully loaded. Empty trucks require greater stopping distances, because an empty vehicle has less traction. It can bounce and lock up its wheels, giving much poorer braking. (This is not usually the case with buses.
Weight management, physical inactivity, and endurancetraining
Answer:
Socioeconomic factor , demographic factor, ecological factory
