Organisms within an ecosystem are organised into levels ... of all species remain relatively constant over time. In the example above the amount of grass, and the numbers of rabbits and foxes ...

O n March 22, World Water Day, Prime Minister Narendra Modi highlighted the need to conserve water for present and future ...

Primary consumers Usually eat plant material - they are herbivores. For example rabbits, caterpillars, cows and sheep. Secondary consumers Usually eat animal material - they are carnivores.