What is the definition of permeability

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

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

People with one sickle cell allele are not likely to get malaria. what is this an example of?