To return to the chapter summary click Escape or close this document. Chapter Resources Click on one of the following icons to go to that resource. life.msscience.com Image Bank Foldables Video Clips and Animations Standardized Test Practice Chapter Review Questions Chapter Summary

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To return to the chapter summary click Escape or close this document. Click on individual thumbnail images to view larger versions. Image Bank

To return to the chapter summary click Escape or close this document. Image Bank To transfer images to your own power point follow the following steps: Open the “Resource” file from the CD-ROM disc – view the file in the “normal view” or “slide sorter view” mode - go to slide #2 – from there you can click through the images and follow these instructions. Click once on the image. Copy the image Go to your own power point document Paste the image. Transfer Images

To return to the chapter summary click Escape or close this document. Image Bank Scientific Method

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To return to the chapter summary click Escape or close this document. Foldables Vocabulary Make the following Foldable to help you understand the vocabulary terms in this chapter.

To return to the chapter summary click Escape or close this document. Foldables Fold a vertical sheet of notebook paper from side to side.

To return to the chapter summary click Escape or close this document. Foldables Cut along every third line of only the top layer to form tabs.

To return to the chapter summary click Escape or close this document. Foldables Label each tab.

To return to the chapter summary click Escape or close this document. Foldables As you read the chapter, write the vocabulary words on the tabs. As you learn the definitions, write them under the tab for each vocabulary word. Build Vocabulary

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To return to the chapter summary click Escape or close this document. 1 1 Scientists use problem-solving methods to investigate observations about living and nonliving things. What is science? Scientists use SI measurements to gather measurable data. Reviewing Main Ideas Safe laboratory practices help you learn more about science.

To return to the chapter summary click Escape or close this document. 2 2 Organisms are made of cells, use energy, reproduce, respond, grow, and develop. Living Things Organisms need energy, water, food, and a place to live. Reviewing Main Ideas

To return to the chapter summary click Escape or close this document. 3 3 Controlled experiments finally disproved the theory of spontaneous generation. Where does life come from? Pasteur’s experiment proved biogenesis. Reviewing Main Ideas

To return to the chapter summary click Escape or close this document. 4 4 Classification is the grouping of ideas, information, or objects based on their similar characteristics. How are living things classified? Scientists today use phylogeny to group organisms into six kingdoms. Reviewing Main Ideas All organisms are given a two-word scientific name using binomial nomenclature.

To return to the chapter summary click Escape or close this document. Chapter Review Question 1 Why has the hypothesis in this example been used to propose a theory?

To return to the chapter summary click Escape or close this document. Chapter Review Answer In the example, several different experiments have all supported the hypothesis. In science, if the results of experimentation always support a particular hypothesis, the hypothesis can then be called a theory. A theory usually explains many hypotheses.

To return to the chapter summary click Escape or close this document. Chapter Review Question 2 Which one of the following is an example of using field work to collect data about where robins build their nests? A. doing an internet search on robins B. finding a book on robins in the library C. watching robins in a laboratory D. watching robins in a park

To return to the chapter summary click Escape or close this document. Chapter Review Answer The correct answer is D. Fieldwork includes observations or experiments that are done outside the laboratory.

To return to the chapter summary click Escape or close this document. Chapter Review Question 3 Why is reproduction an important characteristic of living things?

To return to the chapter summary click Escape or close this document. Chapter Review Answer Without reproduction, living things could not replace individuals that die and would soon no longer exist. Reproduction can take many different forms, including production of spores, laying eggs, or giving birth to live young.

To return to the chapter summary click Escape or close this document. Chapter Review Question 4 What is the estimated age of Earth? A years old B. 4.6 million years old C. 4.6 billion years old D. 4.6 trillion years old

To return to the chapter summary click Escape or close this document. Chapter Review Answer The correct answer is C. Rocks found in Australia more than 3.5 billion years old are one piece of data that supports this estimation.

To return to the chapter summary click Escape or close this document. Chapter Review Question 5 This is the classification of the bottle-nosed dolphin. Which one of the following organisms from the order Cetacea is most closely related to the bottle- nosed dolphin?

To return to the chapter summary click Escape or close this document. Chapter Review A. Bow-head whale from the Family Balaenidea B. Ganges River dolphin from the Family Platanistidae

To return to the chapter summary click Escape or close this document. Chapter Review C. Killer whale from the Family Delphinidae D. Right whale from the Family Balaenidea

To return to the chapter summary click Escape or close this document. Chapter Review The correct answer is C. The bottle-nose dolphin and the killer whale are more closely related than the others because they are classified in the same family of Delphinidae. Answer

To return to the chapter summary click Escape or close this document. Standardized Test Practice Question 1 Which measurement should be made using the SI unit of meters instead of the units shown in the table? Measurements to makeSI unit to use Volume of water in jarmilliliters Height of a bookshelfgrams Mass of a sofakilograms Distance to the moonkilometers

To return to the chapter summary click Escape or close this document. Standardized Test Practice A. distance to the moon B. height of a bookshelf C. mass of a sofa D. volume of water in a jar Measurements to makeSI unit to use Volume of water in jarmilliliters Height of a bookshelfgrams Mass of a sofakilograms Distance to the moonkilometers

To return to the chapter summary click Escape or close this document. Standardized Test Practice Answer The correct answer is B. Height is a measurement of length and can be measured in meters. The SI unit of a gram is a measurement of mass.

To return to the chapter summary click Escape or close this document. Standardized Test Practice Question 2 Why might you find these symbols in your text book?

To return to the chapter summary click Escape or close this document. Standardized Test Practice A. to alert you to situations that require special attention B. to help you study for test on each chapter

To return to the chapter summary click Escape or close this document. Standardized Test Practice C. to show you where to find certain information in the text D. to warn you to turn the page quickly

To return to the chapter summary click Escape or close this document. Standardized Test Practice Answer The correct answer is A. These are safety symbols that are used throughout your text.

To return to the chapter summary click Escape or close this document. Standardized Test Practice Question 3 Like all living things, you require energy to survive. What is the source of the energy used by your body? A. carbon dioxide B. the Sun C. food that you eat D. oxygen

To return to the chapter summary click Escape or close this document. Standardized Test Practice Answer The correct answer is C. You get food by eating plants or other organisms that ate plants. Plants make their own food through photosynthesis. Therefore, you use the Sun’s energy indirectly.

To return to the chapter summary click Escape or close this document. Standardized Test Practice Question 4 Stanley Miller and Harold Urey conducted this experiment to find out if gases in Earth’s early atmosphere could have produced _______.

To return to the chapter summary click Escape or close this document. Standardized Test Practice A. bacteria from viruses B. chemicals found in living things C. electricity D. mice from grain

To return to the chapter summary click Escape or close this document. Standardized Test Practice The correct answer is B. They hypothesized that lightning in Earth’s early atmosphere could have caused the gases to combine to produce these chemicals. They passed an electrical current through those gases to simulate what might have happened. Answer

To return to the chapter summary click Escape or close this document. Standardized Test Practice Dichotomous keys are arranged in steps with two _______. Question 5 A. descriptive statements at each step B. kingdoms at each step C. pictures at each step D. scientific names at each step

To return to the chapter summary click Escape or close this document. Standardized Test Practice The correct answer is A. If you learn how to use a dichotomous key, you can identify and name species. Answer

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