Chapter 1: Themes in the Study of Life

All the organisms on your campus make up ________.

• An Ecosystem
• A Community
• A Population
• An Experimental Group

Which of the following is a correct sequence of levels in life's hierarchy, proceeding downward from an individual animal?

• brain, organ system, nerve cell, nervous tissue
• organ system, nervous tissue, brain
• organism, organ system, tissue, cell, organ
• nervous system, tissue, molecule, cell

Which of the following is NOT an observation or inference on which Darwin's theory of natural selection is based? 

• Poorly adapted individuals never produce offspring
• There is heritable variation among individuals 
• Because of over production of offspring, there is competition for limited resources 
• A population can become adapted to its environment over time. 

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NGSS.MS-LS4-4

Systems biology is mainly an attempt to _________.

• Analyze genomes from different species 
• Understand  the behavior of entire biological systems.

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Protists and bacteria are grouped into different domains because ______

• Protist eat bacteria
• Bacteria decompose protists
• Protist are photosynthetic
• Protists have a membrane-bounded nucleus, which bacterial cells lack.

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NGSS.MS-LS4-2

Which of the following best demonstrates the unity among all organisms?

• The structure and function of DNA
• Matching DNA nucleotide sequences 
• Natural Selection

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A controlled experiment is one that _______

• Proceeds slowly enough that a scientist can make careful records of the results 
• Tests experimental and control groups in parallel
• Keeps all variables constant

Which of the following statements best distinguishes hypotheses from theories in science? 

• Theories are hypotheses that have been proved
• Hypotheses usually are relatively narrow in scope; theories have broad explanatory power. 

Which of the following is an example of quantitative data?

• The plants height is 25 centimeters 
• The temperature decreased from 20 degrees Celsius to 15 degrees Celsius  
• The fish swam in a zigzag motion

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Which of the following best describes the logic of scientific inquiry?

• If my hypothesis is correct, I can expect certain test results.
• If I generate a testable hypothesis, tests and observations will support it
• If my observations are accurate, they will support my hypothesis. 

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