Living Environment Regents Practice

Front

What are the two body systems most closely associated with white blood cells?

Back

Immune and circulatory systems.

Front

Why do many countries regulate the introduction of nonnative insects?

Back

Nonnative insects might not have natural predators in new habitats.

Front

Why is maintaining an appropriate temperature beneficial to organisms during respiration?

Back

Enzymes need a proper range of temperatures to catalyze vital reactions.

Front

Which group of organisms recycles organic matter back to the environment?

Back

Decomposers.

Front

What is a protozoan that can live in humans and is primarily hosted by domestic cats?

Back

A parasite.

Front

What is the role of enzymes in biological reactions?

Back

Enzymes catalyze vital reactions, requiring specific temperature ranges.

Front

What is the definition of decomposers in an ecosystem?

Back

Organisms that break down dead organic material, returning nutrients to the environment.

Front

What is a natural predator?

Back

An organism that preys on another organism, helping to control its population.

Front

What is the significance of biodiversity in an ecosystem?

Back

Biodiversity contributes to ecosystem resilience and stability.

Front

What is the function of the immune system?

Back

To protect the body against pathogens and foreign substances.