Biology 2nd Semester Review

Front

What type of growth is characterized by a rapid increase in population size, often depicted in a J-shaped curve?

Back

Exponential Growth

Front

True or False: The current rate of extinction of amphibian species is the same as historical amphibian extinction rates.

Back

False. The current loss of many amphibian species is especially alarming because amphibians have been on Earth for over 350 million years and have survived previous mass extinction events.

Front

What do we call the process by which traits that are advantageous in a given environment become more common in a population?

Back

Natural Selection

Front

What is the term for the build-up of traits that are advantageous in a given environment?

Back

Adaptations

Front

What is the term for all of the biotic (living organisms) and abiotic (nonliving) parts of an area together?

Back

Ecosystem

Front

True or False: Mutations that occur within a population's gene pool can only be beneficial for the population's fitness.

Back

False. Mutations can be good, bad, or have no effect (benign) for the population's fitness.

Front

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

Back

Biodiversity

Front

What is the process called when organisms better adapted to their environment tend to survive and produce more offspring?

Back

Natural Selection

Front

What is the term for a group of individuals of the same species living in a specific area?

Back

Population

Front

What is the term for the maximum population size that an environment can sustain indefinitely?

Back

Carrying Capacity