PERFORMANCE TASKS (PT) – 50% TOTAL SCORE FOR PT-A =
A. Direction: Below are ecological problems brought about
by human activities. Research on each and complete the
table based on facts you found. List possible benefits in
the Pros column. List possible negative outcomes in the
Cons column. List possible solutions in the solution
column. Score for PT-A:
Human
Impacts PROS CONS SOLUTIONS

Deforestation

Urbanization

Desertification

Erosion

Air and Water
Quality

Water Flow

Asample of digestive juice was removed from the stomach of a pig. the juice was placed in a test tube along with some grains of wheat. a second test tube was set up containing an equal number of wheat grains, with distilled water rather than digestive juice. the test tubes were kept for 8 hours at 40 degrees c. after 8 hours, the grains inside the digestive juice had broken into tiny particles. the grains of wheat, in the water, were wet but otherwise unchanged. what is the control group?