AP BIOLOGY

Detailed explanation-1: -While decomposers break down dead, organic materials, detritivores-like millipedes, earthworms, and termites-eat dead organisms and wastes.

Detailed explanation-2: -Scavengers play an important role the food web. They keep an ecosystem free of the bodies of dead animals, or carrion. Scavengers break down this organic material and recycle it into the ecosystem as nutrients. Some birds are scavengers.

Detailed explanation-3: -Decomposers (fungi, bacteria, invertebrates such as worms and insects) have the ability to break down dead organisms into smaller particles and create new compounds. We use decomposers to restore the natural nutrient cycle through controlled composting. Decomposers are the link that keeps the circle of life in motion.

Detailed explanation-4: -Different decomposers Fungi release chemicals to break down dead plants or animals into simple substances. They absorb some of these substances for growth, but others enter the soil. Earthworms digest rotting plant and animal matter as they swallow soil.

Detailed explanation-5: -Decomposers break down dead and decaying organic matter that includes fallen leaves, dead plant parts and animals. Thus is also called as detritus. They helps in soil replenishment by adding nutrients to the soil. Hence a detritus food chain begins with decomposers.