BIOL 1308 Exam 1

Which function is NOT a property of life?

• Organisms reproduce their own kind.

• Living things exhibit complex but ordered organization.

• Populations of organisms rarely change over time.

• Organisms take in energy and use it to perform all of life's activities.

Which substance is NOT recycled but rather is lost from ecosystems?

• carbon

• magnesium

• nitrogen

• energy

What does "adaptation" mean in an evolutionary context?

• The ability of organisms to alter their appearance under changing environmental conditions

• the way an individual's body adjusts to its environment

• the accumulation of favorable variations in a population over time

• all of the answers are correct

Over a span of two decades in the 1900s, scientists measured changes in the beak size of a population of Galapagos ground finches. These data could provide _____.

• evidence of natural selection in action

• an example of overproduction

• an example of artificial selection

• evidence used by Darwin for his theory of evolution

Science is ______.

• an organized set of principles for how to behave ethically and morally

• the search for truth

• the inquiry-based effort to describe and explain nature

• all of the answers are correct

Which of these statements is CORRECT?

• Science can be used to prove or disprove the idea that deities or spirits cause earthquakes and other natural disasters.

• Science does not require observations that other people can confirm.

• Scientific ideas are subjected to repeated testing.

• Only exploratory science can lead to important conclusions about nature.

What sequence shows the steps of the process of science in an order in which they might occur?

• question, observation, experiment, analysis, prediction

• experiment, conclusion, exploration, application

• exploration, question, opinion, conclusion, hypothesis

• exploration, hypothesis, prediction, experiment

How do hypotheses differ from theories?

• Hypotheses are educated guesses, and theories are tentative explanations.

• Hypotheses are derived from experimentation, whereas theories are derived from observation.

• Theories must be testable: hypotheses do not need to be testable.

• Theories are more comprehensive than hypotheses.

Antibiotic resistance evolves in bacteria when ______.

• Farmers do not use enough antibiotics create resistance genes in bacteria

• the antibiotics create resistance genes in bacteria

• the bacteria realize that they need to avoid the antibiotic

• the presence of antibiotics favors bacteria that already have genes for resistance

Which information flow is disrupted when diabetes detroys insulin-producing cells?

• The pancreas is unable to produce enzymes to break down proteins.

• The body is unable to respond to signals that indicate the amount of glucose in the blood.

• Appetite signals no longer regulate feeding.

• Cells in the bladder are no longer able to send signals when the bladder fills.