Energy Flow and Ecosystems Crossword

The autotrophic organism at the start of a food chain converts light energy to chemical energy.
The mass of biological material in living or recently living organisms
A community in which energy and matter are transferred in complex interactions between the environment and organisms, involving biotic and abiotic elements.
The progressive changes in the structure and species composition in a community over time.
The role and position a species has in its environment.
The feeding level within a food chain and shows the number of times that energy has been transferred to successive organisms along a food chain.
These feed on detritus and decompose remnants of dead organisms
the energy in the plant's biomass which is available to primary consumers after respiration
the rate of productionof chemical energy in organic molecules by photosynthesis in a given area in a given time
the first species to colonise a new area