The graph shows the federal budget from 1980 to 2010. In which period did the federal budget show the greatest deficit? 1980 to 1990 1980 to 2000 1990 to 2000 2000 to 2010

Nathan is an ecologist. he’s studying the effect of secondary consumers on primary consumers. his current research focuses on a population of blue jays and crows. they eat caterpillars and mice. if the number of blue jays increases, what are the likely effects on other populations? 1the number of crows will increase. 2the number of mice will decrease. 3the number of mice will remain the same. 4the number of caterpillars will decrease.