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

A similar example is shown in the graph below and shows characteristic repeating patterns called predator-prey cycles. The graph shows that there is almost always more prey than predators.

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.