1. Which habitat has the highest animal population?

2. Calculate the total population across all habitats.

3. What is the average population size per species?

1. If a lion consumes 5000 kJ of energy from its prey, and only 10% of the energy is transferred to the next trophic level, how much energy is available to the next level?

2. A plant produces 20000 kJ of energy through photosynthesis. Calculate the energy available to a herbivore that eats the plant.

1. How do these adaptations help each animal survive in its environment?

2. What are the key differences in their adaptations?

1. Calculate the amount of carbon dioxide produced when 180 g of glucose is completely oxidised in aerobic respiration. (C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O)

2. If an animal respires anaerobically, how much lactic acid is produced from 90 g of glucose? (C₆H₁₂O₆ → 2C₃H₆O₃)

Organisms: Grass, Rabbit, Fox, Hawk, Grasshopper

1. Draw the food web and label each organism's role.

2. Describe the impact on the ecosystem if the rabbit population decreases.

1. Define biodiversity and its significance.

2. List three human activities that threaten biodiversity.

3. Propose two strategies to conserve biodiversity.