The food chain of a producer is the sun, the primary consumer, the secondary consumer and the decomposer. The producer uses the sun and nutrients in the soil to make food, and animals that consume it eventually die and fertilize the soil.
The first step in the food chain of a producer, such as a plant, is using the soil and sun to make its own food. Soon, a primary consumer, usually an herbivore or insect such as a bison or grasshopper, eats the producer. These primary consumers are then eaten by secondary consumers, such as a spider in the case of the grasshopper. Sometimes the food chain consists of long lines of consumers. For instance, a shrew feeds on a spider before a weasel eats the shrew, and a red-tailed hawk captures the weasel before a great-horned owl preys on the hawk. These animals that are higher up on the food chain are tertiary consumers.
These consumers eventually die for various reasons, and their bodies are broken down by decomposers, such as bacteria and fungi. The nutrients return to the soil, and the plants absorb those nutrients when making food. In some cases, plants die before another organism consumes them, and they decompose right away rather than passing their energy up through the food chain.Learn More
Most extinctions can be prevented by implementing conservation strategies such as legal remedies, preserving natural plant and wildlife habitats and using synthetic medicines not derived from plant and animal products. Preventing extinction requires an understanding of its root causes, which include natural events and human activity. Although extinctions from natural causes cannot be prevented, human behavior may be modified to give flora and fauna worldwide a greater chance of survival.Full Answer >
There are over 180 species of earthworms in the United States and Canada, but only 60 of these are native to the area. Settlers brought many of the species to improve the soil, although earthworms are not always beneficial to plants.Full Answer >
Sand dollars are actually the skeletons of marine echinoderms and take their off-white, chalky form after the animal dies. They are closely related to flat sea urchins, starfish and sea cucumbers. When alive, they are covered in short, fine spines and range in color from yellow to blue and purple.Full Answer >
Remora and sharks have a commensalism relationship which, according to the Encyclopedia Britannica, is a relationship between two species in which one benefits from the other without either being harmed. Commonly called a suckerfish, the remora is a pelagic marine fish that attaches to the shark and feeds on it. Unlike parasitic species, the remora does not penetrate the flesh of the shark or otherwise cause it damage.Full Answer >