Exploring Trophic Levels in Food Chains

The video explains trophic levels in an ecosystem, starting with primary producers like plants and algae, followed by primary consumers (herbivores), secondary consumers (carnivores), tertiary consumers, and apex predators. Decomposers, which break down dead matter, also have a trophic level. The video highlights that organisms can feed at multiple trophic levels, using a community example to illustrate these concepts.

What defines the trophic level of an organism in a food chain?

• Its size

• Its feeding behavior

• Its speed

• Its color

Who are considered primary producers?

• Carnivores

• Green plants

• Fungi

• Herbivores

What trophic level do herbivores occupy?

• Fourth

• First

• Second

• Third

Which trophic level is occupied by carnivores that eat other carnivores?

• Second

• Fifth

• Fourth

• Third

What role do decomposers play in the ecosystem?

• Secondary consumers

• Primary consumers

• Primary producers

• Breaking down dead matter

Which of the following is an example of a primary consumer?

• Fungi

• Fox

• Rabbit

• Eagle

What is the trophic level of an apex predator?

• Level 3

• Level 4

• They do not have a trophic level

• Level 5

Which organism is an example of a decomposer?

• Fungi

• Fox

• Grass

• Rabbit