State Test Picture Review

Front

What is secondary succession?

Back

Secondary succession is the process of ecological recovery that occurs in an area where a disturbance has destroyed a community but left the soil intact, such as after a forest fire.

Front

What role do decomposers play in an ecosystem?

Back

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

Front

How does deforestation affect carbon dioxide levels in the atmosphere?

Back

Deforestation increases CO2 levels because trees absorb carbon dioxide during photosynthesis; removing them reduces this absorption.

Front

What are vestigial structures?

Back

Vestigial structures are anatomical features that have lost their original function through evolution, such as the human appendix.

Front

What is a nucleotide?

Back

A nucleotide is the basic building block of nucleic acids (DNA and RNA), consisting of a sugar, a phosphate group, and a nitrogenous base.

Front

What is primary succession?

Back

Primary succession is the development of a biological community in an area where no soil exists, such as after a volcanic eruption.

Front

What are producers in an ecosystem?

Back

Producers are organisms that create their own food through photosynthesis or chemosynthesis, forming the base of the food chain.

Front

What is the significance of biodiversity in an ecosystem?

Back

Biodiversity enhances ecosystem productivity and stability, providing resilience against environmental changes.

Front

What is the carbon cycle?

Back

The carbon cycle is the process by which carbon is exchanged among the atmosphere, land, water, and living organisms.

Front

What is the difference between a food chain and a food web?

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass, while a food web is a complex network of interconnected food chains.