Biology Review 2

Front

What happens when an animal population exceeds the carrying capacity of its environment?

Back

The death rate will increase.

Front

What is a characteristic of a stable ecosystem?

Back

An interdependence of organisms.

Front

How can the validity of an experiment be improved?

Back

By increasing the number of students.

Front

What type of relationship exists between fire ants and ground-nesting birds?

Back

Predator/prey.

Front

Which organisms recycle organic matter back to the environment?

Back

Decomposers.

Front

Define carrying capacity in an ecosystem.

Back

The maximum population size of a species that an environment can sustain indefinitely.

Front

What role do producers play in an ecosystem?

Back

They convert sunlight into energy through photosynthesis.

Front

What is the difference between a predator and a prey?

Back

A predator hunts and eats other organisms, while prey is the organism that is hunted.

Front

What is biodiversity and why is it important?

Back

Biodiversity refers to the variety of life in an ecosystem; it is important for ecosystem resilience and stability.

Front

What is the role of decomposers in an ecosystem?

Back

Decomposers break down dead organic matter, returning nutrients to the soil.