This is the type of succession that occurs when all of the usable soil
has been destroyed in an
ecosystem.
A seccession
B primary
C Secondary

What happens when the cell copies its chromosomes

Which member of the following food chain will be least affected by ddt, a pesticide water pollutant, if bio-magnification is occurring? algae> zooplankton> crayfish> leopard frog> large mouth bass

When the oxygen produced by photosynthetic plants in the water dissolves in the water, which of these is being formed?