Choose all the answers that apply.

matter in an ecosystem:
must be continuously replenished
is part of a closed system
is recycled and reused
is returned to the earth by decomposers
is always decreasing
000

choose all the answers that apply.

in a balanced ecosystem the number of
producers is greater than the number of consumers
consumers is greater than the number of producers
primary consumers is greater than the number of secondary consumers
secondary consumers is greater than the number of tertiary consumers
tertiary consumers is greater than the number of primary consumers