Why do you think wegener was unable to prove the theories of continental drift and plate tectonics before his death in 1930?

With regard to enzymes, key is to lock as a) substrate is to activation energy eliminate b) product is to substrate. c) enzyme is to active site. d) substrate is to active site.

In "the pig," what is the main effect that the piglet initially has on kibuka?

What is one reason why transpiration is important in plants? question 19 options: it produces food from the sugar in the plant cells. it enables the flow of water out of the plant. it produces carbon dioxide in the leaves of the plant.