Answer:
3
Explanation:
i looked it up i hope that helped!
The word I think they use is A mass.
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.
A cell in a hypotonic solution will burst because water is moving inside the cell causing it to swell.
Answer:
Explanation:
I think it’s D humans have added carbon dioxide to the atmosphere by burning fossil fuels