Ch 4 Ecosystem

Front

What is a producer in an ecosystem?

Back

A producer is an organism that can make its own food through photosynthesis or chemosynthesis, such as plants and algae.

Front

What type of relationship is commensalism?

Back

Commensalism is a type of symbiotic relationship where one organism benefits while the other is neither helped nor harmed.

Front

How do animals obtain nitrogen?

Back

Animals obtain nitrogen by eating other organisms that contain nitrogen in their bodies.

Front

What is respiration in biological terms?

Back

Respiration is the process by which organisms consume oxygen and produce carbon dioxide as a waste product.

Front

Why do all types of organisms need carbon?

Back

All types of organisms need carbon because it is a fundamental building block of life, essential for the formation of organic molecules.

Front

What is the role of decomposers in an ecosystem?

Back

Decomposers break down dead organic matter, returning nutrients to the soil and making them available for producers.

Front

What is the difference between a primary consumer and a secondary consumer?

Back

Primary consumers eat producers (plants), while secondary consumers eat primary consumers (herbivores).

Front

What is an example of mutualism?

Back

An example of mutualism is bees pollinating flowers while obtaining nectar for food.

Front

What is the significance of the nitrogen cycle?

Back

The nitrogen cycle is significant because it recycles nitrogen in various forms through the ecosystem, making it available for living organisms.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.