(10 points) Yuanmingyuan Ruins Park is the closest and relatively perfect wetland ecological landscape to the center of Beijing. There are a variety of submerged plants (a variety of aquatic plants), emergent plants (lotus, calamus, reed, etc.) and terrestrial plants. Still living with locusts

(10 points) (1) Level (2) Decomposition of abiotic substances and energy (2) Competition and predation of locusts, snails, giant shrimps and fish (3) Insects such as locusts are important links in the food chain (food web), which affects the survival of other trophic levels (species). …