Which modern invention made the distribution of books even easier than the printing press?

About how much of the cell mass is watet

Residential construction is expanding in florida, the expansion has caused fragmentation of habitats, one of the results of the increased construction is a decrease in the number of large predators such as the coyote, black bear and pool panther, which will be the most immediate local result of this fragmentation? 1)large predators will become extinct 2)decrease in middle sized predators 3)increase in population of top carnivores 4)increase in population of prey species

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic