Exam 1: An Introduction to Biology

A defining characteristic that distinguishes prokaryotic and eukaryotic organisms is the lack of a cell membrane in prokaryotes.

Which level of organization is common to all life forms?

Vertical evolution,whereby living organisms evolve from a common ancestor ("tree of life"),is the only mechanism of evolution on Earth.

All organisms in the Kingdom ____ can perform photosynthesis.

When performing hypothesis testing,the steps that most accurately describe the process you must go through include (check all that apply)

Molecules are made up of ____.

Plant photosynthesis and the consumption of plants by animals is best explained by what unifying principle of life?

A researcher at sea discovers an island that contains a large number of boa constrictors and few other species.In order to determine why so many boa constrictors dominate the habitat the researcher would need to focus at the level of a(n)

Little scientific evidence is necessary when formulating a theory.

New species evolve from pre-existing species by the accumulation of

Proteins are largely responsible for the traits of living organisms while ________ provides the blueprint for the organization,development and function of living things.

Which is responsible for encoding the proteins found in a cell?

Discovery-based science and hypothesis testing are the two major scientific approaches that help us understand biology.

The maintenance of cell structure requires energy.