Teachers.io

2023-24

Oct. 20, 2023

Spend your homework time this week revising for a small quiz that we will do at the start of the lesson on Friday 20 October.

Use the 'Ecology topic page' checklist to guide your revision (in your OneNote but also copied below).

4.1 understand the terms population, community, habitat and ecosystem
4.2 practical: investigate the population size of an organism in two different areas using quadrats
4.5 understand how abiotic and biotic factors affect the population size and distribution of organisms
4.6 understand the names given to different trophic levels, including producers, primary, secondary and tertiary consumers and decomposers
4.7 understand the concepts of food chains, food webs, pyramids of numbers, pyramids of biomass and pyramids of energy transfer
4.8 understand the transfer of substances and energy along a food chain
4.9 understand why only about 10% of energy is transferred from one trophic level to the next
4.10 describe the stages in the carbon cycle, including respiration, photosynthesis, decomposition and combustion