CHAPTER 1 Chapter Test A - Weebly

1 CHAPTER1 BIOLOGY IN THE 21ST CENTURYC hapter TestAMultiple ChoiceChoose the letter of the best answer.(15 credits) use observations and data toform and an experiment, which factors areobserved and measured? which stage of scientific thinkingare scientists most likely to consider thedata and conclusions of other scientiststo propose new experiments?observingforming hypothesestesting hypothesesanalyzing dataevaluating resultsFIG. phrase best describes scientifictheories? few as never be various parts of Earth s biosphereare connected variety of life across the biosphereis organisms that can reproduce byinterbreeding belong to the the chemical processes used to buildup or break down materials are called anorganism BookChapter Test A11 McDougal Littell BiologyCopyright McDougal Littell/Houghton Mifflin 1 Biology in the 21st CenturyCHAPTER TEST A, is the name given for geneticchanges in living things over time? physical environment with differentspecies that interact with one anotherand with nonliving things is called a(n) negativefeedback processes and behavior have computer models expandedbiological research?

2 Help scientists design simulate complex biologicalsystems that cannot be give scientists the ability toobserve molecules allow the use of humanexperimental study and manipulation of DNA ona molecular level is known of the processes shown in use and apply biological processes are examples ofmicroorganisms10987654321mL13121114 Insulin for Diabeticsmicroorganisms dough A B genes for producing human insulin FIG. how indoor air pollutants leadto respiratory problems is an exampleof using biology global human ethical Test AAssessment BookMcDougal Littell BiologyCHAPTER 1 Biology in the 21st CenturyCopyright McDougal Littell/Houghton Mifflin TEST A, CONTINUEDS hortAnswerUse the diagram below to answer items 16 20.(5 credits)FIG. AppearancePlant Height at 10 Days1potting soildamp, light2sand dry,coarse3clay wet, the experiment outlined in the table, three identical tomato seedlings are planted inthree identical pots, placed in the same location, and watered on identical to the table in Figure , what conditions differ for each seedling?

3 Each of the following as independent variable, dependent variable, or constant:type of soil used, type of seedling used, and height of soil appearance an example of qualitative (descriptive) or quantitative (numerical)data? for this how this experiment would let you test this BookChapter Test A13 McDougal Littell BiologyCopyright McDougal Littell/Houghton Mifflin 1 Biology in the 21st CenturyCHAPTER TEST A, CONTINUEDUse the diagram below to answer items 21 25.(5 credits)small insect eatercactus eaterseed eaterbud, leaf, and fruit eaterABCDFIG. shows a small sample of different species of finches that evolved acrossthe Gal pagos Islands. One difference among the finches is the size and shape oftheir beaks, which changed over a long period of time in response to their differentenvironments. What term best describes the differences in beak size and shape? the birds beak differences mean that each eats different foods, how did the traitbecome more common in the finches on different islands?

4 Of these birds most likely inherited the best trait for life in a dry, desertenvironment? Why? an environment in which insect populations are decreasing, which bird populationmight also decrease over time? Why? populations of finches A, C, and D were placed together on the same island, do youthink they would compete for the same foods? Why or why not?14 CHAPTER Test AAssessment BookMcDougal Littell BiologyCHAPTER 1 Biology in the 21st CenturyCopyright McDougal Littell/Houghton Mifflin Company.