JSS2: BASIC SCIENCE – 1ST TERM Living Things (Habitat) | Week 1, 2 & 3 Pyramid of Numbers, Energy & Mass

Lesson 1, Topic 6

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Pyramid of Numbers, Energy & Mass

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Pyramid of Numbers
Pyramid of EnergyEnergy is the ability to do work. Energy exists in several forms such as heat, kinetic or mechanical energy, light, potential energy, and electrical energy. Units of Energy: The SI unit... More
Pyramid of Mass

Pyramid of Numbers:

This is a diagram illustrating the number of organisms at each trophic level in a food chain. In a food chain, there are more organisms at the lower trophic level than at the higher trophic level. This can be illustrated below:

Pyramid of Numbers — ^{Pyramid of Numbers.}

Pyramid of Energy:

This is the diagram illustrating how energy flows, from one organism to the other, in a food chain. As energy flows from one organism to another, energy is lost in the form of heat. This is illustrated below:

Pyramid of Energy — _{Pyramid of Energy.}

The Energy - Food Pyramid — _{The Energy – Food Pyramid.}

Pyramid of Mass:

This is the diagram illustrating the increasing size of organisms, from one trophic level to the other. Organisms at a higher level of a food chain are often larger in size, while the ones at the base are smaller in size.

Pyramid of Biomass — _{Pyramid of Biomass.}

Upright Pyramid of Biomass in a Terrestrial Ecosystem — _{Upright Pyramid of Biomass in a Terrestrial Ecosystem.}