The deadliest of all mass extinctions, which killed 95% of all living organisms, was the • Cretaceous-Tertiary
•
End Triassic
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•
Permian-Triassic
•
Late Devonian
• Ordovician-Silurian

What is hydroelectric power produced by?

Where would you expect to see seedless plants, such as ferns and mosses? a. in a botanical museum, because they are all extinct b. low and close to the ground in a moist environment c. climbing high while circling the branches of another plant d. deeply rooted in a forest with a trunk that reaches 20 meters or more

One function of the immune system is to attack the foreign cells to protect the body. in organ translate , the body recongnizes that the new organ is made of foreign cells. wha kind of medicine would you give a patient to increase the chances of transplate success