Chapter 1 - The Study of Life

Which of the following is an observation?

• You record the air temperature every day for a week.

• You propose that a cold front is approaching.

• You hypothesize that the temperature will increase tomorrow.

• You conclude that the season is changing.

A testable explanation of a situation is called a(n)

• experiment

• hypothesis

• data

• conclusion

Which is an example of a stimulus and the accompanying response of an organism?

• A hawk grabs a branch to gain a perch.

• A rat scurries past, and a python strikes at it.

• A wildebeest crosses a river during migration.

• An earthworm burrows into new, rich soil.

Which topic falls under the study of Biology?

• the chemicals in fuel

• the makeup of the atmosphere

• rocks found in a riverbed

• the digestive system of an earthworm

Living things do all of the following except

• make adjustments to nonliving factors around them.

• maintain a stable internal environment.

• respond to other organisms.

• pass an identical genetic code to their offspring for many generations.

Which is an example of an adaptation?

• bald spots on an old cougar

• viruses passed to humans

• new foods found by squirrels

• white hair of adult polar bears

Tasha is testing the effect of blue-colored light on the growth of tomato plants. Which is the independent variable in this experiment?

• light color

• amount of light

• light intensity

• temperature of light

Which activity is an example of the human body striving to maintain homeostasis?

• creating thoughts to solve a difficult problem

• digesting foods to reduce their particle size

• producing sweat to reduce body temperature

• sprinting across a street to avoid oncoming traffic

Which of the following correctly sequences the steps of the scientific method?

• Propose a Question, Observe and Research, Form a Hypothesis, Perform Experiment, Analysis Data and Form a Conclusion

• Propose a Question, Observe and Research, Perform Experiment, Form a Hypothesis, Analysis Data and Form a Conclusion

• Propose a Question, Observe and Research, Form a Hypothesis, Analysis Data, Perform Experiment, and Form a Conclusion

• Form a Conclusion, Analysis Data, Perform Experiment, Form a Hypothesis, Observe and Research, and Propose a Question

Which best describes the purpose of science?

• to explain the nature of things

• to propose solutions to political issues

• to solve ethical problems of society

• to debate meaning of life