A fresh water biome food chain is likely to be made up of micro-organisms, decaying substances, detritus, animals without backbones, small fish, large fish, eels and birds. The animals may be present in different species depending on the physical location of the particular biome.Know More
A food chain normally represents the relationship of organisms within a given ecosystem. The food chain shows how each organism is important to the other and the ecosystem as a whole.
At the bottom of the food chain in a fresh water biome one is likely to notice micro-organisms and decaying substances. These are the basic things that enable life to begin. Right on top of these things are likely to be plants such as phytoplankton. On the next level are animals without backbones such as stonefly, midge, caddis and mayfly. These animals are at this position because they are able to eat the plants available.
The next level of the food chain is likely to have small fish which feed on the animals without backbones. Right on top of small fish are large fish which are able to eat both the small fish and some animals without backbones.
On top of the fresh water biome food chain, one is likely to notice birds such as ducks and herons which feed on all kinds of fish.Learn more about Biology
Protozoans are an indirect source of food for man, fish and other animals. Protozoa also play an important role in water purification by breaking down organic waste substances in the water. Prospectors use the skeletal deposits of marine protozoans to pin point the location of oil. Protozoans also cause malaria, an infection that kills and weakens millions of people every year, affecting their ability to work.Full Answer >
Living things need air, food and water because they are essential to the chemical processes that provide organisms with energy and keep them alive. These processes are collectively known as metabolism. The nutrients found in food, the oxygen found in air and the solvent property of water are indispensable components of metabolism.Full Answer >
All organisms need food, air, water, sunlight, and the right habitat. Organisms need to obtain nutrients from food. Air is the mixture of natural gases in the right proportions for each organism. While animals need oxygen for respiration, plants require carbon dioxide to manufacture food.Full Answer >
Biological mutant agents are substances that change the genetic material of organisms, such as DNA, and include certain chemicals and rays, such as ultraviolet radiation, X-rays and gamma rays, along with viruses and bacteria. Many mutagenic agents cause cancer, and are dually classified as carcinogens. While mutant agents cause artificial changes in genetic codes and replication, some mutations occur naturally and are caused by spontaneous hydrolysis and errors in DNA replication, recombination and repair.Full Answer >