CATDOLL : CATDOLL: In recent years, golden apple snails have spread rapidly in some areas, threatening local biodiversity. Please answer based on the information: (1) Golden apple snails live in

(1) The golden apple snail lives in fresh water. It has a soft body and is protected by a shell. It has a mantle. Therefore, the golden apple snail is a mollusk.

(2) Ecosystems include biological and non-biological components. Biological components include producers, consumers and decomposers. Producers mainly refer to green plants; consumers mainly refer to various animals, which play an important role in promoting the material cycle in the biosphere; decomposers refer to saprophytic microorganisms such as bacteria and fungi. The golden apple snail has a wide range of diets and can feed on various plants. It is particularly harmful to rice. The seedlings were eaten by the golden apple snail. Therefore, the golden apple snail is a consumer.

(3) The reasons that threaten the survival of organisms include habitat destruction, poaching (indiscriminate hunting and killing), invasion of alien species, environmental pollution, and other reasons. The golden apple snail is native to the Amazon River Basin in South America and was introduced to various parts of my country for breeding in 1981. Today, the golden apple snail has caused the survival of other aquatic organisms in the introduced areas to be threatened. Therefore, the reason why the golden apple snail threatens biodiversity is the invasion of alien species.

(4) Farmers took advantage of the fact that ducks and black carp like to eat young snails and created a method to reduce the number of young snails by releasing ducks and black carp. This method belongs to biological control. Biological control takes advantage of the relationship between biological species and uses one or a class of organisms to control crop diseases and insect pests. Its biggest advantage is that it does not pollute the environment and saves money on pesticides, which is unmatched by non-biological pest control methods such as pesticides.

So the answer is:

(1) Software;

(2) Consumers;

(3) A;

(4) Biological control: no pollution to the environment and saves money on pesticides.