According to the graph, which region's
population is expected to get smaller between
2010 and 2050?
WORLD POPULATION GROWTH
20,000
10,000
World
5,000
Asla
2,000
Africa
Europe
Millions of people
United States
Mexico,
Canada, & Greenland
Central America
Caribbean Islands, &
South America
Oceania (Australia &
nearby islands in the Pacific)

Match the digestive enzymes to the macromolecules they to digest. break down fats into glycerol and fatty acids break down carbohydrates into simple sugars break down nucleic acids into nitrogenous bases and simple sugars break down proteins into amino acids

Compare the shapes of the bones of the human skull with the shapes of the bones of the human leg. how do the shapes differ? why are the shapes important?

The images show two species of tree frogs in a particular region. the gray tree frogs are adapted to the trees of the woodlands, while the green tree frogs can survive in woodlands or grasslands. the gray frog was abundant in the woodlands. because of climatic changes, most of the trees in the region died, and the woodlands changed to grasslands. in such a case, the . the gray tree frog is closely related to the green tree frog genetically, but they have different mating calls. this suggests that speciation occurred because of .