An open system is characterized by
A) inputs of energy and matter that come from outside the system.
B) energy and matter that are stored in the system, but not within the living tissue.
C) negative feedbacks rather than positive feedbacks.
D) the absence of secondary consumers.
A) inputs of energy and matter that come from outside the system.
You might also like to view...
Much of the north-central United States is actually overlain by ice-deposited material called ________
A) till B) shield C) tallons D) debris E) sediments
The flow of ice is:
a. elastic b. visco-elastic c. visco-plastic d. viscous
An abzyme is which of the following?
A) an abnormal enzyme B) an antibody with catalytic ability C) an antigen with catalytic ability D) an immunogen
________ are narrow currents that flow straight out to sea in the surf zone.
A. Tidal currents B. Body currents C. Rip currents D. Swash currents E. Longshore currents