What is biomass in biology GCSE?
Biomass is the total dry mass of one animal or plant species in a food chain or food web . A pyramid of biomass shows the biomass at each trophic level , rather than the population.
What is biomass BBC Bitesize geography?
Biomass is tissue from living organisms. Wood is considered biomass because it was recently a plant. Fossil fuels are not considered biomass because they are the remains of organisms that died millions of years ago and have been chemically changed from the original living tissue.
What does ancient biomass mean?
All of the fossil fuels we consume – coal, oil and natural gas – are simply ancient biomass. Over millions of years, the earth has buried ages-old plant material and converted it into these valuable fuels.
How is biomass lost BBC Bitesize?
Biomass can be lost between stages because not all of the matter eaten by an organism is digested. Some of it is excreted as waste such as solid faeces , carbon dioxide and water in respiration and water and urea in urine.
What is biomass and example?
Biomass is organic material made from plants and animals. Biomass contains stored energy from the sun. Some examples of biomass fuels are wood, crops, manure, and some garbage. When burned, the chemical energy in biomass is released as heat. If you have a fireplace, the wood you burn in it is a biomass fuel.
How do you find the biomass of an organism?
One way to measure biomass is to obtain the dry weight of an organism (since it is a rough approximation to the amount of biomass) and multiply it by the number of those organisms in a given area. The units are grams per meter squared (or cubed if it is an aquatic ecosystem). This is a commonly used method.
What are examples of biomass?
Biomass is a renewable energy source because we can always grow more trees and crops, and waste will always exist. Some examples of biomass fuels are wood, crops, manure, and some garbage. When burned, the chemical energy in biomass is released as heat.
What is a biomass diagram?
A biomass pyramid is a diagram that compares the biomass of different trophic levels within an ecosystem. It shows the mass of producers that are needed to support primary consumers, the mass of primary consumers required to support secondary consumers, and so on.
How was biomass used in history?
Biomass has been used as a source of heat energy since man first discovered fire. Many people around the world still burn wood as their primary source of heat during the winter. The use of biofuels such as ethanol has been around for some time as well. It was used as lamp fuel in the United States in the 1800s.
What is biomass ks3?
Biomass is the term for any plant, vegetable or animal-based material that can be utilised as an energy source. Often consisting of animal waste or crops, it is a renewable and sustainable source of energy used to create fuel, electricity and other forms of power.
Why is biomass the largest store?
Biomass is the largest store of nutrients due to the vast arrays of plants found in the TRF. Few nutrients are in the litter, due to their rapid decomposition as a result of high temperatures. Leaching is rapid and more so in areas of rainforest clearance.
How are pyramids of biomass used in a food chain?
Pyramids of biomass. The amount of biomass can be measured at different trophic levels in a food chain. The total biomass of each trophic level is often represented as a modified bar chart called a pyramid of biomass. In a food chain from a healthy ecosystem the biomass at each trophic level must reduce. An example of a food chain is:
Which is an example of the transfer of biomass?
The arrows in a food chain show the transfer of biomass from one organism to another. An example of a food chain is: Some of the energy from the Sun is transferred by maize when it photosynthesises.
How is the total biomass of a trophic level represented?
The total biomass of each trophic level is often represented as a modified bar chart called a pyramid of biomass. In a food chain from a healthy ecosystem the biomass at each trophic level must reduce.
Why is the mass of your body considered biomass?
The mass of your body is biomass because you are alive. Wood is considered biomass because it was recently a plant. Fossil fuels are not considered biomass because they are the remains of organisms that died millions of years ago and have been chemically changed from the original living tissue.