Unit 1: Introduction to Biology

Which of the following do scientists not use to support ideas?

• opinions

• evidence

• experiments

• investigations

Which of the following is unethical behavior in scientific investigations?

• allowing peers to review investigations

• following guidelines for medical experiments

• reporting inaccurate data

• basing investigations on someone else's work

All of the following are reasons to have an understanding of science except

• choosing a school for your children to attend

• buying products that do no harm to the environment

• making wise health care choices

• deciding which candidates to vote for in an election

A scientist noticed that the number of salamanders in ponds in the Rocky Mountains was declining. This was a(n)

• hypothesis

• theory

• observation

• control

A hypothesis is a

• definite answer to a given problem

• testable possible explanation of an observation

• proven statement

• concluding statement

A hypothesis is a

• definite answer to a given problem

• testable possible explanation of an observation

• proven statement

• concluding statement

Most typically, the order in which the steps of scientific investigation are applied is

• controlled experiment, hypothesis, analysis of results, observations, questions, conclusions

• observations, controlled experiments, hypothesis, analysis of results, conclusions, questions

• observations, questions, hypothesis, controlled experiment, analysis of results, conclusions

• questions, observations, analysis of results, controlled experiments, conclusions, hypothesis

Scientific hypotheses are most often tested by the process of

• communicating

• inferring

• experimenting

• analyzing data

A planned procedure to test a hypothesis is called a(n)

• prediction

• experiment

• control

• variable

The variable that is measured in an experiment is the _____ variable.

• dependent

• independent

• control

• experiment