Name Date Class

Exploring and Classifying Life

I. Testing Concepts

Directions: Match the description in the first column with the term in the second column by writing the correctletter in the space provided. Some items in the second column may not be used.

1. living thing

2. smallest unit of organisms that carries on life functions

3. changes that living things undergo as they grow

4. anything an organism reacts to

5. reaction of an organism to a stimulus

r^ 6. characteristic of an organism that helps it to survive in its^ environment

*••* 7. organized problem-solving procedure in science

/V * 8. what is being tested in an experiment

_*!•/- 9. standard used to compare with the outcome of a test

•" 10. the maintenance of steady conditions inside an organism

a. adaptationb. biogenesis

c. celld. control

e. developmentf. homeostasisg. life spanh. organismi. responsej. scientific methods

k. stimulus1- theory

m. variable

Directions: For each of the following, write the letter of the term or phrase that best completes the sentence.CL*J 11. Babies laughing at four months is an example of .

a. adaptation c. growthb. development d. respiration

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12. An organism's ability to maintain a steady condition is called .a. biogenesis c. osmosisb. homeostasis d. respiration

13. Linnaeus's major contribution to organism classification was .a. a six-kingdom system c. grouping kingdoms and phylumsb. binomial nomenclature d. grouping by class, order, and family

The first word of an organism's scientific name is thea. class c. kingdomb. genus d. species

_ percent water.15. Most living things are made up of more thana. 80 c. 60b. 50 d. 70

16. The idea that living things come from nonliving things is calleda. adaptation c. homeostasisb. biogenesis d. spontaneous generation

Exploring and Classifying Life 39

Name Date Pass

Chapter Test (continued)

. 17. The doctor who showed that maggots hatch from eggs that flies lay on meat, and notfrom the meat itself, was .a. Pasteur b. Redi c. Spallanzani d. van Helmont

. 18. In the late 1700s, designed an experiment to show that tiny organisms comefrom other tiny organisms in the air.a. Miller b. Oparin c. Redi d. Spallanzani

19. The theory that living things come only from living things is called .a. biogenesis c. ecologyb. development d. spontaneous generation

20. A detailed list of identifying characteristics that includes scientific names is called a

a. domain b. dichotomous key c. field guide d. phylum

21. experiment showed that substances present in living things could be madefrom nonliving things in the environment.a. Miller's b. Pasteur's c. Redi's d. Van Helmont's

B

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A is a prediction that can be tested.a. hypothesis b. scientific law c. theory d. variable

as.

25.

A(n) is an explanation of things or events based on many observations.a. control b. experiment c. hypothesis d. theory

The SI unit of mass is the .a. cubic meter b. kilogram

All of the following EXCEPT _a. kilometer b. inch

c. liter

_ are SI units.c. gram

d. meter

d. tonne

II. Understanding ConceptsSkill: Observing and Inferring

Directions: Answer the following questions using the scientific names for trees listed below.

Pinus banksiana Pinus contorta

1. What do the trees have hi common?

"thru n\g -U -ViAC

Pinus resinosa Pinus yirginiana

<i g

2. What can you infer is the common name for this type of tree?

ees .3. Where might you expect to find Pinus virginiana in abundance?

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40 Exploring and Classifying life

Name: Class: Date:. ID: A

Chapter 1 Part 1

Multiple ChoiceIdentify the choice that beat completes the statement or answers the question.

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1. What type of field guide would be the easiest and most efficient to use?a. encyclopedia with phylum names onlyb. dichotomous keyc. Aristotle systemd. encyclopedia with species names only

2. Which is NOT a function of a dichotomous key?a. avoid errors in communicationb. organisms with similar evolutionary histories are classified togetherc. give descriptive informationd. more difficult to find and identify species

3. The first name of the organism's scientific name is the .a. species c. genusb. family d. order

4. Scientific names of organisms consist of .a. genus and specific name c. family and genusb. order and family d. class and order

5. The classification system most commonly used today separates organisms into kingdoms.a. three c. fiveb. four d. six

6. Of the following, which would NOT be grouped with the others?a. blue jeans c. sweatpantsb. shorts d. sweatshirt

7. Dichotomous keys are divided into steps with descriptions at each step.a. two c. fiveb. three d. four

8. Linnaeus's system gave how many names to each organism?a. two c. oneb. three d. four

9. If you know an insect is a butterfly but don't know its scientific name, it would be best to use a(n) _find out.a. dictionary c. biology textbookb. encyclopedia d. dichotomous key

10. The theory that living things come only from other living things is called .a. adaptation c. spontaneous generationb. biogenesis d. homcostasis

11. The belief that living things come from nonliving things is called .a. biogenesis c. homeostasisb. respiration d. spontaneous generation

12. To solve a problem, scientists follow a series of steps called .a. a dichotomous key c. classificationsb. scientific methods d. Systems or Units

1

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Growth of many-celled organisms is mostly due to an increase in the of cells.a. size c. numberb. protons d. all of the above

Scientists use prior experience to .a. collect datab. make predictions about what will happen under certain circumstancesc. analyze their datad. serve as a control in their experiments

One example of technology that is commonly used by scientists is .a. computers c. variablesb. hypotheses d. observations

Examples of the skills used in science include _____ and .a. cholera , E. colt outbreaks c. facts , inferencesb. clues , detectives d. observations, measurements

After scientists analyze the results of their experiments, they .a. form hypothesesb. include a controlc. communicate those results to other peopled. choose the variables they want to test

Which of the following steps to solve a problem must be completed ftntla. analyzing data c. forming a hypothesisb. recognizing and identifying the problem d. testing a hypothesis

Which of the following steps to solve a problem is completed last!a. analyzing data c. drawing conclusionsb. recognizing and identifying the problem d. testing a hypothesis

Listing what is known about a problem and possible ways to solve the problem are parts of .a. making a plan c. testing a hypothesisb. drawing conclusions d. eliminating bias

can save time and money by testing ideas that would otherwise be difficult to test quickly or easily.a. Biasesb. Conclusions

A prediction or statement that can be tested isa. a conclusionb. an observation

A factor in an experiment that can change is _a. an observationb. a variable

d.

d.

ModelsVariables

a controla hypothesis

c. a controld. a hypothesis

A sample that is treated exactly like the other experimental groups except that the variable is not applied to itis a(n) .a. observation c. controlb. variable d. hypothesis

Scientists conduct multiple trials of their experiments because .a. their results are more likely to be reliableb. it costs less to run more trials than fewer trialsc. unusual occurrences are likely to be repeated every timed. experiments always have the same results

Name:_ ID: A

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26. One tool that can be used to display your data is a .a. balance c. microscopeb. spring scale d. computer

27. One way to reduce bias in an experiment is to .a. ask only girls a question about a school topicb. take numerical measurements of the resultsc. use descriptive phrases as your datad. make sure that the results come out the way you want them

. A good way to organize and record your results and observations is .a. in a data tableb. by using a calculatorc. with a balance or spring scaled. by having a hypothesis before you begin your experiment

'. Which of the following units is part of the International System of Units, or SI?a. pounds c. metersb. ounces d. inches

CompletionComplete each statement.

30. The theory that living things come only from other living things is known as «—' * *"-t (^ f |CO I^J

31. A two-word name used to classify living things is pi fVt)fftVQ.i rUifflfcflC |Q*fttf €

32. Anything an organism responds to is a(n) ^nj (Y\. The ability to remain stable is called _

YVv

X* J~34. The smallest units of life are known as(_(, l» J*>

35. Another term for living things is ^/i (^lITVi

36. The reaction of an organism to a stimulus is called a

37. The VJT\V4\Ou^ J^V. M of an organism is its evolutionary history.• . r * i • ̂ 7 *

38. The OlfYTTO 1 in an experiment is the standard used to compare with the outcome.

Matching

Match each term with its description below.a. hypothesis e. scienceb. variable f. technologyc. control g. globalizationd. SI

39. use of knowledge to make products or tools that people can use40. a sample that is treated exactly like the other experimental groups except that the variable is not applied to it41. worldwide distribution42. a system of units used by scientists that is based on units of ten

Name: _

43. a prediction or statement that can be tested44. a factor in an experiment that can change

f. 45. a process used to solve a problem

Match a or b to each Term below.a. general skill used in scienceb. specific step scientists follow to solve problems

rt 46. observing47. analyzing data48. forming a hypothesis49. comparing and contrasting50. classifying

A 51. drawing conclusionsry 52. recognizing the problemp 53. testing a hypothesisfi 54. measuring

ID: A