<span><span>A plant that, when self-fertilized, only produces offspring with the same traits.</span></span>
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.
Many metabolic prpcesses depend on water such as electron transport chain and glycolysis
Answer:
A. The sun
Explanation:
The sun, because there has been theory’s of the sun being able to heat earth from there being a lot of iron in the middle of earth
