Explain changes in the sheets 8.2.1 and 8.2.2; Homework quiz distribution of species in an Technician’s notes 8.2 Slideshow ecosystem. Describe stable and unstable populations. Year Term 1 83/84 8.3 Investigating Describe how changes in 4.7.2.1 Worksheets 8.3.1 and Quick starter relationships one population affect 8.3.2; Practical sheet 8.3; Homework 11 another. Technician’s notes 8.3 worksheet Explain interdependent Homework quiz relationships. Explain how predator–prey population cycles have cyclical changes. Year Term 1 85/86 8.4 Looking at trophic levels Explain trophic levels. 4.7.2.1; 4.7.4.1; Worksheets 8.4.1, 8.4.2 starter Explain and construct 4.7.4.2 and 8.4.3 Homework 11 pyramids of biomass. worksheet Explain the difficulties in Homework quiz constructing pyramids. Year Term 1 85/86 8.5 Transferring biomass Identify how biomass is lost. 4.7.4.3 Worksheets 8.5.1, 8.5.2 Quick starter Calculate the efficiency of and 8.5.3 Homework 11 biomass transfers. worksheet Explain the impact of Homework quiz biomass loss on the numbers Video of organisms. Year Term 1 87/88 8.6 Competing for resources Describe how competition 4.7.1.1 Worksheets 8.6.1, 8.6.2 Quick starter impacts on populations. and 8.6.3 Homework 11 Explain why animals in the worksheet same habitat are in Homework quiz competition. Slideshow Explain interspecific and intraspecific competition.
Explain changes in the distribution of species in an ecosystem. Describe stable and unstable populations. sheets 8.2.1 and 8.2.2; Technician’s notes 8.2 Homework quiz Slideshow Year 11 Term 1 83/84 8.3 Investigating relationships Describe how changes in one population affect another. Explain interdependent relationships. Explain how predator–prey population cycles have cyclical changes. 4.7.2.1 Worksheets 8.3.1 and 8.3.2; Practical sheet 8.3; Technician’s notes 8.3 Quick starter Homework worksheet Homework quiz Year 11 Term 1 85/86 8.4 Looking at trophic levels Explain trophic levels. Explain and construct pyramids of biomass. Explain the difficulties in constructing pyramids. 4.7.2.1; 4.7.4.1; 4.7.4.2 Worksheets 8.4.1, 8.4.2 and 8.4.3 starter Homework worksheet Homework quiz Year 11 Term 1 85/86 8.5 Transferring biomass Identify how biomass is lost. Calculate the efficiency of biomass transfers. Explain the impact of biomass loss on the numbers of organisms. 4.7.4.3 Worksheets 8.5.1, 8.5.2 and 8.5.3 Quick starter Homework worksheet Homework quiz Video Year 11 Term 1 87/88 8.6 Competing for resources Describe how competition impacts on populations. Explain why animals in the same habitat are in competition. Explain interspecific and intraspecific competition. 4.7.1.1 Worksheets 8.6.1, 8.6.2 and 8.6.3 Quick starter Homework worksheet Homework quiz Slideshow