Bio S1 Review 24-25

Front

What is the role of decomposers in the nitrogen cycle?

Back

Decomposers break down matter into ammonia, which is essential for recycling nitrogen in ecosystems.

Front

What is a significant threat to biodiversity in temperate forests?

Back

Deforestation is a major threat to biodiversity, leading to habitat loss and species extinction.

Front

What does an ecological pyramid show?

Back

An ecological pyramid illustrates the relative amounts of energy, biomass, or numbers of organisms at each trophic level.

Front

Where does cellular respiration occur in cells?

Back

Cellular respiration occurs in the mitochondria, where energy is produced.

Front

Which of the following characteristics is typical of a tropical rainforest?

Back

Tropical rainforests are characterized by high annual rainfall, supporting diverse ecosystems.

Front

What is biodiversity?

Back

Biodiversity refers to the variety of life in a particular habitat or ecosystem.

Front

What is the nitrogen cycle?

Back

The nitrogen cycle is the process by which nitrogen is converted between its various chemical forms, including fixation, nitrification, and denitrification.

Front

What is the significance of photosynthesis in ecosystems?

Back

Photosynthesis converts solar energy into chemical energy, providing food for plants and oxygen for other organisms.

Front

What are trophic levels?

Back

Trophic levels represent the hierarchical positions of organisms in a food chain, based on their feeding relationships.

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.