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Active Lecture Questions Copyright © 2011 Pearson Education Inc. Chapter 1 An Introduction to Life on Earth
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e Which of the following is a suitable hypothesis to explain why your iPod won’t work? 1.My iPod holds 3 gigs of music. 2.There’s something wrong with the software on my iPod. 3.My iPod has 4,131 songs, 18 music videos, and two TV shows on it. 4.I need a better play list.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e Which of the following is a suitable hypothesis to explain why your iPod won’t work? 1.My iPod holds 3 gigs of music. 2.There’s something wrong with the software on my iPod. 3.My iPod has 4,131 songs, 18 music videos, and two TV shows on it. 4.I need a better play list.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e A good experiment tests only one variable. In this experiment, which is the variable? Mice in Group AMice in Group B 1 pint of tap water1 pint of tap water 1-square-foot cage1-square-foot cage 12 hours of sunlight12 hours of sunlight Normal dietLow carb diet 1.Amount of water 2.Cage size 3.Amount of light 4.Diet type
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e A good experiment tests only one variable. In this experiment, which is the variable? Mice in Group AMice in Group B 1 pint of tap water1 pint of tap water 1-square-foot cage1-square-foot cage 12 hours of sunlight12 hours of sunlight Normal dietLow carb diet 1.Amount of water 2.Cage size 3.Amount of light 4.Diet type
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e A double-blind study means that both the scientists and the participants in the experiment do not know which group is the experimental group. Why is this important? 1.There will be no bias. No one will know who is in the experimental vs. control group. 2.It will allow for bias. The experimental variable will be unknown. 3.The scientists will not be confused as to who is in the experimental vs. control group. 4.The participants will be confused because they do not know who is in the experimental vs. control group.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e A double-blind study means that both the scientists and the participants in the experiment do not know which group is the experimental group. Why is this important? 1.There will be no bias. No one will know who is in the experimental vs. control group. 2.It will allow for bias. The experimental variable will be unknown. 3.The scientists will not be confused as to who is in the experimental vs. control group. 4.The participants will be confused because they do not know who is in the experimental vs. control group.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e A scientist finds the cure for cancer. She has done the experiment once. Does this prove she has the cure? 1.Yes. She has illustrated in her conclusion that she has accepted her hypothesis based on her data. 2.Yes. Her data supported her expectations. 3.No. Her experiment must be repeated by herself and other scientists to see if they get the same results. 4.No. It will not be possible to cure cancer.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e A scientist finds the cure for cancer. She has done the experiment once. Does this prove she has the cure? 1.Yes. She has illustrated in her conclusion that she has accepted her hypothesis based on her data. 2.Yes. Her data supported her expectations. 3.No. Her experiment must be repeated by herself and other scientists to see if they get the same results. 4.No. It will not be possible to cure cancer.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e What is a theory? 1.A fact that will never change. 2.An educated guess. 3.A general explanation developed through extensive and reproducible observations. 4.Information that all scientists believe to be true beyond a reasonable doubt.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e What is a theory? 1.A fact that will never change. 2.An educated guess. 3.A general explanation developed through extensive and reproducible observations. 4.Information that all scientists believe to be true beyond a reasonable doubt.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e Which of the following is a theory? 1.It will rain tomorrow. 2.All living things evolved from a common ancestor. 3.Zebras have stripes. 4.Taking vitamins will keep me healthy.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e Which of the following is a theory? 1.It will rain tomorrow. 2.All living things evolved from a common ancestor. 3.Zebras have stripes. 4.Taking vitamins will keep me healthy.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e The theory of evolution states: 1.All organisms, with a few exceptions, descended from preexisting life-forms. 2.Diverse forms of life retain the same genetic makeup. 3.Evolution occurs fastest in a population with little genetic variation. 4.Evolution is a consequence of natural selection or the survival and enhanced reproduction of organisms with favorable traits.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e The theory of evolution states: 1.All organisms, with a few exceptions, descended from preexisting life-forms. 2.Diverse forms of life retain the same genetic makeup. 3.Evolution occurs fastest in a population with little genetic variation. 4.Evolution is a consequence of natural selection or the survival and enhanced reproduction of organisms with favorable traits.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e In widowbirds: 1.Females with the longest tails have the most offspring. 2.Females with the shortest tails have the most offspring. 3.Males with the longest tails have the most offspring. 4.Males with the shortest tails have the most offspring.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e In widowbirds: 1.Females with the longest tails have the most offspring. 2.Females with the shortest tails have the most offspring. 3.Males with the longest tails have the most offspring. 4.Males with the shortest tails have the most offspring.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e In Francesco Redi’s experiment: 1.The gauze closing the bottles was the experimental variable. 2.The meat inside the bottles was the experimental variable. 3.The type of jar holding the meat was the experimental variable. 4.The presence of maggots in the meat confirmed spontaneous generation.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e In Francesco Redi’s experiment: 1.The gauze closing the bottles was the experimental variable. 2.The meat inside the bottles was the experimental variable. 3.The type of jar holding the meat was the experimental variable. 4.The presence of maggots in the meat confirmed spontaneous generation.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e Our body works to keep our temperature at about 98.6ºF. This is an example of which characteristic of living things? 1.Living things are organized. 2.Living things respond to stimuli. 3.Living things maintain homeostasis. 4.Living things need energy.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e Our body works to keep our temperature at about 98.6ºF. This is an example of which characteristic of living things? 1.Living things are organized. 2.Living things respond to stimuli. 3.Living things maintain homeostasis. 4.Living things need energy.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e If you put a plant in your window, the stem will lean in the direction of the sun. This is an example of which characteristic of life? 1.Living things are organized. 2.Living things respond to stimuli. 3.Living things maintain homeostasis. 4.Living things need energy.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e If you put a plant in your window, the stem will lean in the direction of the sun. This is an example of which characteristic of life? 1.Living things are organized. 2.Living things respond to stimuli. 3.Living things maintain homeostasis. 4.Living things need energy.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e Which of the following properties distinguishes a living organism from a photo copier? 1.Responds to stimuli 2.Acquires energy from external sources 3.Reproduces a copy of itself with slight modifications 4.Maintains constant internal conditions
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e Which of the following properties distinguishes a living organism from a photo copier? 1.Responds to stimuli 2.Acquires energy from external sources 3.Reproduces a copy of itself with slight modifications 4.Maintains constant internal conditions
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e The word heterotroph means “other-feeder” or: 1.Able to photosynthesize. 2.Able to make its own food. 3.Must rely on other organisms for energy. 4.Make its own energy.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e The word heterotroph means “other-feeder” or: 1.Able to photosynthesize. 2.Able to make its own food. 3.Must rely on other organisms for energy. 4.Make its own energy.
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e In the figure, which organism is most closely related to humans? 1.Bacterium 2.Protist 3.Arachaean 4.Tree Figure 1-11
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Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e In the figure, which organism is most closely related to humans? 1.Bacterium 2.Protist 3.Arachaean 4.Tree Figure 1-11
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