Biol 1406 Final Exam

Experiments are carried out to test a hypothesis by changing one variable at a time and should include an unchanged variable termed a(n) _________________.

• experimental variable
• altered vatiable
• control
• stable variable

The method of reasoning that uses construction fo general principles by careful examination of many specifi cases is called:

• inductive reasoning
• hypothetical reasoning
• experimental reasoning
• deductive reasoning

After Darwin concluded his voyage on the Beagle, he proposed that the process of natrual selection was a mechanism for:

• evolution
• artificial selection
• speciation
• sexual selection

You explain to your study group that a hypothesis is:

• a theory
• constant over time
• an explanation that accounts for careful observations
• a proposition that will be true and fits the known facts

The proposal that one type of organism can change gradually into another type over a long period of time is known as:

• natural history
• preservation
• evolution
• preconception

What common life characteristic would cells from a daisy, bacteria, and a dog all have in common?

• DNA
• cell walls
• organs
• ability to conduct photosynthesis

A yellow jacket, an insect in the order Hymentoptera, stung me. I see a pattern. All insects in this order must have stingers. What type of reasoning does this represent?

• inductive reasoning
• deductive reasoning
• comparative reasoning

The same basic array of bones is modified to give rise to the wing of a bat and the fin of a porpoise. Such anatomical structures are called:

• uniform
• analogous
• homologous
• inherited

Differences in domesticated animals over relatively short periods of time most likely occur through:

• evolution
• natural selection
• artificial selection
• adaptation

How does peer review influence the development of scientific theories

• peer review allows other scientists to know what is current in their field
• careful evaluation of research results by other scientists ensures that only solid and legitimate research results are published, and helps prevent faulty research or false claims from being viewed as scientific fact.
• peer review increases competition among scientists and thus increases the quality of the published work
• peer review makes it extremely difficult for work to be published other than earth shattering scientific theories