Food chain , in ecology, the sequence of transfers of matter and energy in the form of food from organism to organism. In a freshwater aquatic ecosystem like a pond, the organisms in the food chain include algae, small animals, insects and their larvae, small fish, big fish and a fish-eating bird or animal (Figure 8.4). Biomagnification, also known as bioamplification or biological magnification, is any concentration of a toxin, such as pesticides, in the tissues of tolerant organisms at successively higher levels in a food chain. Food chains intertwine locally into a food web because most organisms consume more than one type of animal or plant. A food chain shows how this energy flow occurs. Every food chain starts with energy from the Sun. Food chain - definition With the help of solar energy, producers produce food. This energy gets transferred through producers to primary, secondary and tertiary consumers to decomposers and finally returns to the environment. The fragile food chains of tundra support some of the most amazing species on the planet, including the likes of gray wolves, polar bears, snowy owls, and Arctic foxes. Food chain follows a single path whereas food web follows multiple paths. Green plants are autotrophic, meaning they create their own food using a chemical reaction called photosynthesis.During photosynthesis, plants take carbon dioxide from the air and water from the ground through their roots, which react to produce glucose and oxygen. Food web is a connection of multiple food chains. For example, a zebra eats grass, and the zebra is eaten by the lion. For tundra plants and animals, survival is not just about battling the harsh environment of this biome, but is equally about being a part of its complex food web. As per the trophic levels, here is an example of a food chain: Grass (Producer) → Goat (Primary Consumer)→ Man (Secondary Consumer) Often we encounter animals consuming dead and decaying matter, such chains that begin with the consumer eating dead organic matter are known as Detritus Food Chain (DFC). Food chain, in ecology, the sequence of transfers of matter and energy in the form of food from organism to organism. 3) Give two examples of species interactions (predation, competition, mutualism, etc.) The food chain looks like this: Grass - Zebra - Lion; Food chains are a simple look at how sunlight is made into energy by plants through photosynthesis, then how that energy is transferred from animal to animal after eating the plants. A food chain in a grassland ecosystem may consist of grasses and other plants, grasshoppers, frogs, snakes and hawks (Figure 8.3). Food is energy. This completes the energy cycle. 2) Explain some functions/processes of your ecosystem including one nutrient cycle and one food chain. This lesson will define what a food chain represents, go through specific examples of food chains, and compare and contrast a food chain with a food … Some animals eat plants and some animals eat other animals. In this lesson we are going to talk all about food chains and food webs in the environment. For example, a simple food chain links the trees and shrubs, the giraffes (that eat trees and shrubs), and the lions (that eat the giraffes). From the food chain, we get to know how organisms are connected with each other. Food chain is a linear sequence of organisms which starts from producer organisms and ends with decomposer species. Learn more about food chains in this article. A food chain shows how each living thing gets its food. Food chains intertwine locally into a food web because most organisms consume more than one type of animal or plant. What is a food chain easy definition? Background Information on Food Chains and Food Webs. Each link in this chain is food … A food chain is a flow of energy from a green plant (producer) to an animal (consumer) and to another animal (another consumer) and so on.
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