Biology Semester 1 Final Exam

Front

What is the term for genetic differences between organisms of the same species?

Back

Variation

Front

What do we call a group of the same species living in an area?

Back

Population

Front

Which statement about the nitrogen cycle is NOT true?

Back

Nitrogen gas can be converted into organic compounds by bacteria.

Front

Comparing human hemoglobin with which animal reveals the fewest amino acid differences?

Back

Chimpanzees

Front

What type of competition occurs when two male giraffes fight for a female mate?

Back

Intraspecific competition.

Front

What is the process by which nitrogen gas is converted into ammonia?

Back

Nitrogen fixation.

Front

What is the role of legumes in the nitrogen cycle?

Back

They host nitrogen-fixing bacteria in their roots.

Front

What is denitrification?

Back

The process of converting nitrates back into nitrogen gas (N2) and releasing it into the atmosphere.

Front

What is the primary source of energy for ecosystems?

Back

The Sun.

Front

What is the term for the variety of life in the world or in a particular habitat?

Back

Biodiversity.