4.4 Explain the names given to different trophic levels to include producers,
primary, secondary and tertiary consumers and decomposers.
4.5 Understand the concepts of food chains, food webs, pyramids of number,
pyramids of biomass and pyramids of energy transfer.
4.6 Understand the transfer of substances and of energy along a food chain.
As one thing consumes another the energy and other things inside it:
- For example fat and vitamins, get transferred to the consumer.
4.7 Explain why only about 10% of energy is transferred from one trophic level
to the next.
The reason why not all of the energy will make it to the next tropic level is that some of it will be used up on the level it is at.
The energy is used for the life processes of the animal that it is in.
For example:
The energy is used for the life processes of the animal that it is in.
For example:
- If a primary consumer eats a producer, it will use some of the energy to keep warm, some to move etc.
- So secondary consumers only gets some of the original energy from the cabbage.