What peculiar feature did darwin find in the tortoises on the galapagos islands?

Describe the function of the endomembrane system? what organelles are involved?

Analyze how the water cycle affects a food web. now list 3 examples for each below using complete sentences, on how too much water would affect the same web? how about to little water?

The pie chart tracks the percentage of renewable energy that's being used in a particular community near the ocean. what are two advantages of using this type of graph for this particular data set?