The KT boundary marks a mass extinction event. the KT boundary is the time between the Cretaceous and Tertiary periods. An asteroid hit the earth at the end of the Cretaceous and that caused the end of the Cretaceous period. Before the KT boundary, pollen from angiosperms and gymnosperms is high. After the meteor hits the earth, a mass extinction occurs and the amount of pollen from gymnosperms and angiosperms decreases dramatically, while the amount of spores from ferns increases. During the Cretaceous period there were many species of gymnosperms and angiosperms but they disappeared at the KT boundary, when the asteroid hit the earth.
The flower would have adapted to allow the hummingbird to better pollinate it. I believe this to be true because it follows the process of adaptation.
Eat plenty of protein at every meal eating food can increase your metablisome. for a few hours or cold water do a high intensity workout lift heavy things stand up more drink green tea or orally T eat spicy foods get a good night sleep
I think its anaerobic respiration