Question 1
The loss of species throughout the world constitutes a loss of biodiversity, which represents a ________ in ecosystem stability and a ________ in productivity.
◦ gain; gain
◦ gain; loss
◦ loss; gain
◦ loss; loss
Question 2
The net dry weight of organic matter that feeds a food chain is
◦ not related to net primary productivity.
◦ derived from respiration.
◦ biomass-or the useful amount of chemical energy.
◦ produced to a greater extent in tundra environments than in savannas.