Maintaining adequate calcium intake reduces the rate of
a. vitamin a synthesis
b. age-related bone loss
c. age-related vision loss
d. hypervitaminosis

Enzyme speed up chemical reaction are which type of marcomolecule? a. carbohhydrates b. protiens c. lipids d. nucleic acids

What are the most explosive events that occur on the sun? umbras solar flares solar winds prominences

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