Answer:
Birds require high levels of oxygen and, therefore, high rates of gas exchange due to flight demands. Avian resting oxygen consumption is high compared to that of mammals and other vertebrates, and this increases even more during the flight.
Explanation:
Compared to mammals, birds have specific adaptations of the respiratory system that result in higher levels of oxygen exchange.
Brownian motion keeps the molecules moving so that they can go from areas of higher concentration to areas of lower concentration, until equilibrium is reached.
It should be when A. late in the third trimester, specifically months 7 and 8. It can't be B or D because the baby is breathing and getting oxygen through the placenta. It's not C because the lungs will de fully developed by the time the baby is out. In the 3rd trimester "the lungs are still developing still shortly before birth, but rhythmic breathing movements begin before lungs are fully developed." Its in my notes. I hope this helps!
Answer:Potential energy is stored energy and the energy of position. Chemical energy is energy stored in the bonds of atoms and molecules. Batteries, biomass, petroleum, natural gas, and coal are examples of chemical energy.
Explanation: sorry if it’s wrong
