The graph shows the changes in population of blackheads in rural michigan during a single year

The response is the basis for vaccination. primary secondary tertiary none of the above

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

Where is most of the fresh water on earth found a in the ocean b in glaciers and in ice caps c in rivers d in the soil