Question

1. Which are different trophic levels in food chain?​

Answer 1

Answer:

A food web starts at trophic level 1 with primary producers such as plants, can move to herbivores at level 2, carnivores at level 3 or higher, and typically finish with apex predators at level 4 or 5. The path along the chain can form either a one-way flow or a food "web".

Answer 2

Answer:

• Primary producers make up the first trophic level.
• The rest of the trophic levels are made up of consumers, also known as heterotrophs; heterotrophs cannot produce their own food, so must consume other organisms in order to acquire nutrition.
• The second trophic level consists of herbivores, these organisms gain energy by eating primary producers and are called primary consumers
• Trophic levels three, four and five consist of carnivores and omnivores. Carnivores are animals that survive only by eating other animals, whereas omnivores eat animals and plant material.
• Trophic level three consists of carnivores and omnivores which eat herbivores; these are the secondary consumers.
• Trophic level four contains carnivores and omnivores which eat secondary consumers and are known as tertiary consumers.