In a rural hilly neighborhood, a landowner uses bulldozers to clear all but the largest trees and cleans up a nearby stream, lining the bottom of the stream with decorative rocks and stepping-stones.
Planting lawn grasses around the base of the trees, the owner wants to create a park-like setting around his home. We expect that in this ecological simplification of the cleared yard, there will be A) more species of invertebrates in the stream and on the land but fewer species of vertebrates and plants everywhere.
B) more mammal and plant species but fewer birds and invertebrates on the land and in the stream.
C) fewer species of vertebrates and plants everywhere but more invertebrates in the stream.
D) fewer species of plants, invertebrates, and vertebrates everywhere.
Question 2
If a subdivision in the northern United States is built by clearing several portions of a large wooded region, we might see an increase in the
A) number of jays or cowbirds in the region.
B) number of songbirds in the region.
C) biodiversity in the region.
D) number of large-sized species with slower individual growth.
Rural versus Urban Population, 1820–1860
To clear an obstructed airway in an infant (A) use chest thrusts followed by (B) back blows.
Trees provide ecosystem services to people
Power-tower in Southern California, largest such facility in the world
The Largest Cell
Maple syrup is produced by evaporating most of the water from sap collected from maple trees in