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Ecosystem and Biotic Components Quiz

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Questions and Answers

What is the main difference between the local scale and the global scale of an ecosystem?

The local scale includes plants and animals, while the global scale only includes physical environment
The local scale refers to a habitat, whereas the global scale refers to a biome (correct)
The local scale is smaller in size compared to the global scale
The local scale focuses on abiotic components, whereas the global scale focuses on biotic components

How do micro-organisms such as fungi and bacteria contribute to the ecosystem?

They produce oxygen essential for the survival of plants and animals
They regulate the population of herbivores in the ecosystem
They help in decomposing dead plants and animals, releasing nutrients into the ecosystem (correct)
They act as pollinators for various plant species in the ecosystem

Why are rocks considered important components of an ecosystem?

Rocks contribute to the regulation of temperature in the ecosystem
Rocks provide shelter for a variety of animals within the ecosystem
Rocks play a role in maintaining the balance of biotic and abiotic components in the ecosystem
Rocks help in the formation of soils, releasing nutrients stored in them into the ecosystem (correct)

How do sunshine and rain contribute to the functioning of an ecosystem?

They support photosynthesis, which is essential for plant growth and nutrient cycling in the ecosystem (A) Signup and view all the answers

What is the main role of detritivores in an ecosystem?

To help return nutrients to the soil from dead organisms and waste (D) Signup and view all the answers

How do food chains and food webs differ?

Food chains represent a linear sequence of energy transfer, whereas food webs depict a complex network of interconnected food chains (B) Signup and view all the answers

What is the significance of trophic levels in a food chain or food web?

They represent the position an organism occupies in the food chain based on its diet (D) Signup and view all the answers

Why does biomass decrease along a food chain?

As a result of energy lost to surroundings as heat and through waste products (A) Signup and view all the answers

What is the role of decomposers in an ecosystem?

To break down dead organisms and waste, returning nutrients to the soil (C) Signup and view all the answers

What distinguishes a primary consumer from a secondary consumer in a food chain?

The primary consumer feeds directly on the producer, while the secondary consumer feeds on herbivores (D) Signup and view all the answers