Exam 1: The Nature of Science and the Characteristics of Life

When compared to a natural system, a college campus is most similar to a(n)

The discovery that bacteria living in Mono Lake had replaced the phosphorus in certain biomolecules with ____________________ has challenged long-held assumptions about the chemical nature of life.

Once experimental data verifies a prediction the hypothesis is considered proven.

Polar bears are white, which makes them difficult to see as they stalk seals; their white fur is an example of an adaptation.

Living organisms are intimately connected to the environments where they live. Such an association is called a biome, and a forest is a good example.

Through the process of ____________________, a group of organisms can develop new characteristics over time.

Which statement best summarizes the information presented in the graph below?

The observation that polar ice floes are thinning or melting much earlier each spring than they did 20 years ago is an example of a scientific ____________________.

The graph below shows the 16-hour mortality resulting from exposing talapia to different concentrations of the dinoflagellate Pfiesteria. Had high mortality occurred in the control group it would indicate that

Plants and animals need a variety of resources to carry out and maintain life processes; the most important is ____________________.

Plants convert the energy in ____________________ into energy-rich substances using a process called photosynthesis.

Living cells are separated from the outside environment by a flexible

A group of interbreeding organisms whose offspring are themselves fertile constitutes a

There is a unity in the characteristics of living organisms because they

A _____ consists of groups of different species living and interacting in a given area.

Biology is the scientific study of ____________________.

An organ is defined as a body structure composed of

Which of the following has a reproductive strategy that does not depend on eggs and sperm?

Which organism might harvest energy from iron?

Some bacteria can sense direction using magnetic particles in their cells.