which of the organisms in the food web would be considered both a primary consumer and a secondary consumer? OPTIONS: mangrove tree crab, green algae, roseate spoonbill, American crocodile? green algae and mangrove are on bottom of food web, then sheepshead and mangrove tree crab are both on the second luine, and then mangrove water snake and roseate spoonbill are on the third line.