Question

The biotic components of ecosystems are

• A. Producers
• B. Carnivores
• C. Herbivores
• D. All of these

Answer 1

The correct option is D

All of these

The correct option is D:

Explanation of the correct option:

Ecosystem is divided into two main components:

1. Abiotic – which includes non-living component.
2. Biotic – which includes living components.
3. The three biotic components of an ecosystem are autotrophs, heterotrophs and decomposers.

Autotrophs

1. Produce their own food by using sunlight by the process of photosynthesis, producers who constitute first trophic level comes under autotrophs.
2. Example plants, green algae.

Heterotrophs

1. These organisms depend on producers for their food.
2. Example – humans.
3. Herbivores or primary consumers, carnivores or secondary consumers, they feed on producers comes under heterotrophs.

Decomposers

1. Consume, decompose dead and decaying matter, also comes under heterotrophs.
2. Example – Bacteria, fungi.

Carnivores

1. Secondary consumers are animals that consume another animal, which constitute third trophic level, they feed on primary consumers.
2. Example - Lion, Leopard.

Herbivores

1. Are animals that consumes only plant material.
2. They constitute the primary consumers.
3. Example – Cow.

The biotic components of ecosystems are producers, herbivores and carnivores.