Environmental Science
The order of succession in a hydrosere is

Rooted aquatic plants-> phytoplankton->Free floating stage->Reed swamp stage->Sedge Meadow stage-> wood land stage-> Climax forest
phytoplankton->Rooted aquatic plants->Free floating stage->Reed swamp stage->Sedge Meadow stage-> wood land stage-> Climax forest
phytoplankton->Rooted aquatic plants->Free floating stage->Reed swamp stage-> wood land stage-> Sedge Meadow stage-> Climax forest
Rooted aquatic plants-> phytoplankton->Free floating stage-> Sedge Meadow stage-> Reed swamp stage-> wood land stage-> Climax forest

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Environmental Science
In the food relationship where the lion eats the wild beast, and the wild beast eats plants

The lion is the primary consumer and the wilde beast is the secondary consumer
The lion is the secondary consumer and the wilde beast is the primary consumer
The lion is the prey and the wilde beast is the predator
The lion is the predator and the wilde beast is the prey

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