Biology I Semester I Final Exam (2024)

Front

Where is the energy greatest in a food chain?

Back

The energy is greatest at the producer level, typically represented by plants such as grass.

Front

What is the highest level of ecological organization?

Back

The highest level of ecological organization is the biosphere.

Front

What do we call all of the populations that live in one area together?

Back

This is referred to as a community.

Front

What is lactose intolerance?

Back

Lactose intolerance occurs when the enzyme lactase, which breaks down lactose, is not produced.

Front

What type of symbiotic relationship benefits both species?

Back

This is known as mutualism.

Front

What is an ecosystem?

Back

An ecosystem is a community of living organisms interacting with their physical environment.

Front

Define 'population' in ecological terms.

Back

A population is a group of individuals of the same species living in a specific area.

Front

What is the role of producers in an ecosystem?

Back

Producers, such as plants, convert solar energy into chemical energy through photosynthesis.

Front

What is the difference between mutualism and parasitism?

Back

In mutualism, both species benefit, while in parasitism, one species benefits at the expense of the other.

Front

What is an example of a limiting factor in an ecosystem?

Back

Limiting factors can include resources like food, water, and shelter that restrict population growth.