Explanation: In general, the higher the trophic level (increasingly apex predators), the lower the biomass. Therefore, the lowest trophic level has the greatest biomass, and those are the producers. These include things like grass, trees, and flowers.
Which group has the greatest biomass?
The total biomass of bacteria may equal that of plants. Copepods may form the largest biomass of any animal species group. Antarctic krill form one of the largest biomasses of any individual animal species.
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Global biomass.
| Terrestrial | |
| name | Chickens |
| number of species | 1 |
| individual count | 24 billion |
Which group in the food web represented would most likely have the greatest biomass?
The tropic level that contains the greatest biomass in most ecosystems are producers. This occurs because producers get there energy from the sun, the sun is the most available resource and so there are the most at that level.
Which of the following organisms has the greatest total biomass in the ecosystem?
Therefore, primary producers comprise the greatest biomass in these food chains.
Why does the first trophic level has the greatest biomass?
The first trophic level has the most biomass because it has the most energy according to the 10% rule.
Where is the greatest biomass found in a food pyramid?
In general, the higher the trophic level (increasingly apex predators), the lower the biomass. Therefore, the lowest trophic level has the greatest biomass, and those are the producers. These include things like grass, trees, and flowers.
How is biomass calculated?
Total biomass is found by summing the dry mass biomass of all individuals in a given land area and then reported by naming the area of concern, e.g. biomass per plot, ecosystem, biome, classroom. … This means once biomass has been calculated it can be multiplied by 0.50 to achieve approximate carbon content.
What is a tertiary consumer?
Tertiary consumers eat the secondary consumers and are usually carnivores (meat eaters). The tertiary consumers in the picture are the frog and snake.
Why does the population decrease as you move up the pyramid?
The pyramid of energy shows that the variety and number of species decreases as you move to higher trophic levels. … This is also assuming that the organisms of the higher trophic level only eat the one organism. To maintain energy levels, higher organisms must eat more food than those at the lower levels.
What are secondary consumers?
Secondary consumers are organisms that eat primary consumers for energy. Primary consumers are always herbivores, or organisms that only eat autotrophic plants. However, secondary consumers can either be carnivores or omnivores. Carnivores only eat other animals, and omnivores eat both plant and animal matter.
What is biomass in a food chain?
Biomass is the energy in living organisms. Autotrophs, the producers in a food web, convert the sun’s energy into biomass. Biomass decreases with each trophic level. There is always more biomass in lower trophic levels than in higher ones.
Which is the largest ecosystem on earth?
The World Ocean is the largest existing ecosystem on our planet. Covering over 71% of the Earth’s surface, it’s a source of livelihood for over 3 billion people.
Which organism is a primary consumer?
The organisms that eat the producers are the primary consumers. They tend to be small in size and there are many of them. The primary consumers are herbivores (vegetarians). The organisms that eat the primary consumers are meat eaters (carnivores) and are called the secondary consumers.
What trophic level has the least biomass?
Answer and Explanation:
The trophic level that has the least biomass is usually the tertiary consumers. Tertiary consumers are at the top of the food web and subsequently…
What trophic level are humans?
The World’s Food Chain
Next come the omnivores that eat a mixture of plants and herbivores. That’s where humans rank, with a trophic level of 2.2. Above us are carnivores, such as foxes, that eat just herbivores.
What is the lowest trophic level?
Plants and algae comprise the lowest level of the trophic system. Called primary producers or autotrophs, plants and other organisms create their own food using photosynthesis. By using energy gleaned from the sun and nutrients gathered from the soil or water, plants and algae can manufacture food.