1 A hypothesis is a possible explanation that must be 

A testable

B expendable 

C seen or touched

D always correct

2 Which of the follow do scientists NOT use to support ideas?

A experiments

B opinions

C evidence

D investigations

3 Which of the following is unethical behavior in scientific investigations?

A allowing peers to review investigations

B following guidelines for medical experiments

C reporting inaccurate data

D basing investigations on someone else's work

4 Scientific thinking can be used

A only by scientists

B only during experiments

C by all living things

D by everyone in daily life

5 A scientist noted that the number of fish in Lake Harris was declining. This was a(n)

A hypothesis

B theory

C observation

D control

6 The variable that is measured in an experiment is the _________ variable.

A dependent

B independent

C control

D experimental

7 A general explanation for a broad range of data is called a 

A hypothesis

B theory

C law

D Prediction

8 A scientific theory is

A absolutely certain and never questioned

B unchangeable

C revised as new evidence is presented

D a controlled experiment

9 The variable that is manipulated or different form the control and experimental group is called the 

A dependent variable

B independent variable

C control variable

D indecisive variable

10 Models allow us to study objects that are difficult to observe directly, one of the limitations of models is that

A they are usually too expensive to make

B They break easily during experiments

C They are approximations and not exact replicas

D They are too exact and therefore cover too many variables

11 Which of the following is not an accepted method different scientific fields use 

A experimentation

B create models

C conduct research

D creating data to match the hypothesis

12 A pattern or event that is always true

A Law

B Theory

C Hypothesis

D Observation

13 When new evidence is presented that contradicts a theory, then

A the new evidence is considered false

B the theory becomes a law

C the original theory is changed

D nothing changes

14 Variables that do not change in an experiment are called

A outcome variables

B variant variables

C constant variables

D descendant variables

15 You know that on game day the football team always wear their jerseys to school. During lunch, you saw five

football players in their jerseys so you know they must have a game today. This is an example of

A an observation

B an inference

C a hypothesis

D a prediction

16 Scientists writing articles, speaking at conferences or exchanging information on the internet is an example of

A drawing conclusions

B testing hypothesis

C analyzing data

D communicating results

17 You conducted an experiment to find out which shoe brand helps you run the fastest. You just finished

running and timing yourself in each shoe. What is the next step?

A analyze data

B draw conclusions

C communicate results

D ask questions

18 To gather information by using one or more of your senses is to be making an 

A observation

B inference

C prediction

D hypothesis

19 Which characteristic of life is cells having structure referring to?

A organization

B growth

C development

D respond to stimuli

20 In multicellular organisms, _______ happens as cells become specialized into different cell types.

A growth

B development

C homeostasis

D response to stimuli

21 A tree is NOT alive because it lacks which characteristic of life?

A use energy

B reproduction

C respond to stimuli

D it is alive

22 All living things maintain a balance within their cells and with the environment through the process of 

A growth

B development

C homeosapiens

D homeostasis

23 Plants growing toward the light is an example of which characteristic of life?

A response to internal stimuli

B homeostasis

C response to external stimuli

D growth

24 Carolus Linneau's naming system which gives each organism a two word scientific name is called

A cladogram

B binomial nomenclature

C dichotomous key

D monera

25 All organisms are classified into one of three domains, select the answer which is NOT one of those domains.

A Bacteria

B Archaea 

C Eukarya

D Prokarya

26 The tool that is a series of questions that will lead the user to the identification of an unknown organism is

called a

A cladogram

B binomial nomenclature

C dichotomous key

D genus species grouping

27 Digesting food, sleeping, thinking and reading require which characteristic of life in order to perform?

A response to stimuli

B homeostasis

C organization

D use energy

28 Which of the following classification is in order from general to specific?

A species, genus, family, order, class, phylum, kingdom, domain

B domain, kingdom, phylum, class, order, family, genus, species

C kingdom, domain, phylum, class, order, family, genus, species

D phylum, kingdom, domain, class, order, family, genus, species

29 Nucleic acids contain which of the following

A amino acids

B proteins

C genetic material

D energy

30 Lipids are important because

A they store genetic material

B they fight disease

C they do not mix with water

D they are made up of 70% of water

31 The carbohydrate in the cell walls of plants that provides structural support is

A fructose

B sucrose

C cellulose

D glucose

32 Identify the organelle that protects an animal cell from the outside environment

A cell wall

B cell membrane

C Golgi apparatus

D cytoplasm

33 The jelly like substance that provides support for organelles inside the cell

A cytoskeleton

B cytofluid

C cytoprotecta

D cytoplasm

34 This organelle directs all cell activity

A cell wall

B nuclear

C nucleus

D nucleic acid

35 The stiff, rigid part of a plant cell that protects it from harmful attacks or virus

A cell membrane

B cytoplasm

C cellular block

D cell wall

36 On which organelle might ribosomes produce proteins

A Golgi apparatus

B ribosomes do not produce proteins

C smooth ER

D rough ER

37 Glucose is broken down into a usable form of energy called ATP in the

A chloroplast

B nucleus

C mitochondria

D adenosine triphosphate

38 Light energy is converted into food in the

A chlorophyll

B chloroplast

C mitochondria

D nucleus

39 The organelle that packages proteins is the

A smooth ER

B rough ER

C vesicle

D Golgi apparatus

40 Food, water and waste are stored in the

A vacuum

B vesicle

C vibernum

D vacuole

41 Lysosome

A digest old cell parts

B store waste, water and food

C transport materials

D produce proteins

42 Movement of materials from an area of high concentration to low concentration is called

A Active transport

B endocytosis

C exocytosis

D Passive transport

43 When water concentration is even on both sides of a cell membrane

A osmosis

B diffusion

C equilibrium

D facilitated diffusion

44 Active transport is

A movement of materials without using the cell's energy

B movement of materials by using the cell's energy

C releasing contents outside the cell

D moving water across a cell membrane

45 Select the statement which is not part of Cell Theory

A all cells come from preexisting cells

B the cell is the smallest unit of life

C all living things are composed of one or more cells

D all living cells are composed of one or more cells

46 For photosynthesis to occur, what is needed other than water?

A oxygen and light energy

B carbon dioxide and light energy

C oxygen and carbon dioxide

D glucose and light energy

47 For cellular respiration to occur, what is needed?

A glucose and water

B oxygen and water

C carbon dioxide and glucose

D glucose and oxygen

48 The second step of cellular respiration occurs is the

A cytoplasm

B chloroplast

C mitochondria

D fermentation

49 If the all the chloroplasts were destroyed in a plant cell, what would happen to the plant? Choose the best

answer.

A cellular respiration could not occur

B there would be nothing to absorb the light energy

C carbon dioxide could not be given off

D photosynthesis could not occur

50 Most of the life of any cell is spent in a period of growth called

A interphase

B prophase

C telophase

D anaphase

51 Which choice correctly describes the two phases of cell cycle?

A cells grow and develop during interphase and reproduce during mitotic phase

B cells grow an develop during mitotic phase and reproduce during interphase

C nucleus divides during interphase and cytoplasm divides during mitotic phase

D nucleus of a cell divides during mitotic phase and the cytoplasm divides during interphase

52 Which of the following is not a result of cell division?

A nutrition

B repair

C reproduction

D growth

53 Which occurs after telophase?

A chromosomes line up in the center of the cell

B sister chromatids separate

C two identical nuclei are formed

D the nucleolus disappears and the nuclear membrane breaks down

54 What occurs during metaphase?

A chromosomes line up in the center of the cell

B sister chromatids separate

C two identical nuclei are formed

D nucleolus disappears and the nuclear membrane breaks down

55 Each human skin cell has ____ pairs of chromosomes

A 18

B 23

C 13

D 46

56 Identify the two stages of the mitotic phase

A mitosis and interphase

B cytokinesis and interphase

C mitosis and cytokinesis

D interphase and metaphase

57 After meiosis is complete, how many chromosomes does each cell have compared to the original cell

A same number

B twice as many

C half as many

D three times as many

58 Kari has two pet rats with black fur. When her rats mated, one of their four offspring had white fur, and the

other three had black fur. Which is most likely true for Kari's rats?

A Both parents are homozygous for white fur trait which is recessive

B Both parents are heterozygous for the white-fur trait, which is dominant.

C Both parents are heterozygous for the white-fur trait, which is recessive.

D Both parents are heterozygous for the white-fur trait, which is sex-linked.

59 The passing of physical characteristics from parent to offspring is __________.  

A genetics

B traits

C fertilization

D heredity

60 The color of a male bunny is black. The color black is the bunny’s _______.

A genotype

B phenotype

C allele

D codominance

61 What does DNA do for a cell?

A fights disease

B converts glucose into useable energy

C gives directions on how to grow and behave

D none of the above

62

The gene for curled ears (C) is dominant over the gene for straight ears (c). The picture below shows a cat

with curled ears (Cc) and a cat with straight ears (cc). What percent of the offspring are expected to have

curled ears as a result of a cross between the cats shown?

A 50%

B 75%

C 100%

D 25%

63 Two blue flowers are crossed. One is homozygous and one is heterozygous for flower color. If blue is the

dominant allele and white is recessive, what will be the ratio of colors in the offspring plants?

A 1 white: 3 blue

B 4 white: 0 blue

C 2 white: 2 blue

D 0 white: 4 blue

64 The _____ _______ provides evidence that species changed over time.

A age dating

B fossil record

C trace fossil

D geologic scale

65 Using radioactive decay to determine a rocks age is called

A absolute age dating

B blind dating

C zinc dating

D relative age dating

66 Living species that are closely related share a common

A bond

B evolution

C ancestor

D offspring

67 The more closely two species are related, the more similar their proteins and ____ are.

A vestigial structures

B comparative anatomy

C genes

D haploids

68 Through careful observation, Charles Darwin came to understand that

A populations of plants and animals in nature most often consist of individuals that are clones of each other

B those individuals whose variation gives them an advantage in staying alive long enough to reproduce are

more likely to pass their traits on to the next generation

C populations of a species that become isolated from others by adapting to different environmental niches

quickly become extinct.

D all the above

69 Over a period of years, the average rainfall in an area decreases causing environmental changes. Which of the

following populations would be most likely to survive these changes?

A a population with the greatest amount of genetic variation.

B a population with the last amount of genetic variation

C a population that has been altered through artificial selection

D a population with the smallest population size

70 Which of the following could lead to the extinction of a species?

A increased competition

B increased food supply

C increased habitat

D increased population size

71 Below are the steps that explain the process of evolution. Select the answer that would have occurred first.

A Over time, a variety of beneficial variations accumulate in a species

B Mutations randomly occur to produce variations. Sexual reproduction also creates variations.

C Organisms with beneficial variations are better able to survive.

D The accumulation of many changes over time can lead to the production of a new species.

72 Below are the steps that explain the process of evolution. Select the answer that would have occurred last.

A Over time, a variety of beneficial variations occur in a species.

B Mutations randomly occur to produce variations. Sexual reproduction also creates variation.

C Organisms with beneficial variations are better able to survive.

D The accumulations of many changes over time can lead to the production of a new species.

73 The resemblance of one species to another in order to survive is called

A camouflage

B subterfuge

C selective breeding

D mimicry

74 In order for a species to survive it must adapt to an environments living parts and also its

A fossil record

B variations

C non-living parts

D predators

75 Organisms that make their own food are called

A producers

B consumers

C chemosynthetics

D omnivores

76 Consumers receive energy through

A producing their own food

B chemosynthesis

C eating biotic or once biotic organisms

D photosynthesis

77 Unlike matter, energy

A cycles through ecosystems returning to the sun

B is consumed but never lost or transferred to the environment

C is lost when the organism dies

D does not transfer back to the sun but channels through ecosystems

78 A good way to think of a ____ _____ is many overlapping ____ _____.

A food web; food chains

B food chain; food webs

C energy pyramid, food chains

D energy pyramid, food webs

79 A ____ ____ shows the amount of energy at each trophic level.

A food web

B food chain

C energy map

D energy pyramid

80 Which of the following would eat a hamburger with lettuce on it?

A herbivore

B detritivore

C carnivore

D omnivore

81 Which of the following are a limiting factor?

A shelter

B food supply

C existence of predators

D all the above

82 When an eagle hunts squirrels, it usually will capture/kill weak or injured individuals of the squirrel

population. How does this help the squirrel population?

A it doesn't because it reduces possible mates

B it removes weak members of the population that consume resources

C it reduces resources since the living squirrels do not know where the eaten squirrels hid their acorns

D as long as the eagles do not take too many squirrels that are male or female, it is fine

83 Eagles eat squirrels. How would you describe this relationship.

A cooperative

B symbiotic

C parasitic

D predator-prey

84 A symbiotic relationship in which both partners benefit is called

A mutualism

B commensalism

C parasitism

D predatorism

85 A symbiotic relationship that benefits one species while harming the other species is called

A mutualism

B commensalism

C parasitism

D predatorism

86 A relationship that benefits one species but does not harm or benefit the other species is called?

A mutualism

B commensalism

C parasitism

D predatorism

87 Which is NOT a function of the skeletal system?

A support

B protection

C stability

D production and storage

88 Bone can move because they

A are attached to muscles by cartilage

B attached to muscles by tendons

C have different types of joints

D are attached to muscles by ligaments

89 Osteoporosis causes bones to become

A brittle

B fuse together

C over produce calcium

D become extremely hard

90 Which is not a function of the muscular system?

A movement

B protection

C temperature regulation

D elimination

91 The integumentary system provides protection, produces vitamin D, regulates temperature, eliminates waste

and

A assist in storing calcium

B sensory response

C arthritic response

D movement

92 Enter Question Text

Select the answer for #1

A skull

B cranium

C mandible

D clavicle

93 Bone #14 function is

A store fat

B regulate immune response

C produce red blood cells

D provide attachment for integumentary tendon

94 Identify bone #16

A Radius

B Tibia

C Fibula

D Ulna

95 Bone #19 is the

A tibia

B fibula

C fibia

D tibula

96 Bone #3 is the ______ and its purpose is primarily ________.

A rib cage; protection

B clavicle; red blood cell production

C sternum; protection

D scapula; protection

97 What is not a function of the excretory system?

A collection of waste

B elimination of waste

C regulation of liquids

D absorption of nutrients

98 What is not a function of the digestive system?

A conjugation

B ingestion

C digestion

D absorption

99 What is the name of the waves of muscle contractions that the muscular system completes in order to move

food through the digestive system?

A perrycomo

B perryellis

C peristalsis

D villi

100 Select the organ that temporarily stores food and aids in chemical digestion.

A #2

B #3

C #4

D #5

101 Select the number of the organ that is the primary place of chemical digestion and absorption

A #2

B #4

C #6

D #8

102 Which system works with the digestive system to deliver nutrients to the cells of the body to help maintain

homeostasis?

A excretory system

B emphatic system

C respiratory system

D circulatory system

103 Which organ of the digestive system stores bile?

A liver

B gall bladder

C appendix

D pancreas

104 The skeletal system works with the circulatory system by

A creating red blood cells

B protecting the heart

C storing calcium

D all the above

105 How does the muscular system help the body maintain homeostasis?

A providing attachment points

B storing calcium

C converting chemical energy to thermal energy which helps you stay warm

D creating red blood cells

106 Which of the following ways does the integumentary system work with the nervous system?

A signal blood vessels to dilate or constrict to increase or reduce heat loss

B absorb sunlight to convert it to vitamin K

C detect temperature and sense pain

D nervous system sends signals to the skin to bruise

107 How does the circulatory system and digestive system work together to help maintain homeostasis?

A digestive system makes red blood cells

B digestive system helps reduce temperature

C circulatory system carries waste from digestion to the large intestine

D the digestive system absorbs nutrients and the circulatory system distributes nutrients

108 If the kidneys are being signaled to absorb more water, what two systems are working together?

A excretory and circulatory

B circulatory and nervous

C excretory and nervous

D circulatory and muscular

109 The nervous system tells you to breathe, what system allows you to inhale and exhale?

A respiratory

B circulatory

C skeletal

D muscular

110 In the lungs, gas exchange occurs in the

A bronchi

B bronchioles

C alveoli

D Meniscus

111 The circulatory and the endocrine system work together by

A transporting the white blood cells created by the endocrine system

B transporting the red blood cells  the endocrine system created

C delivering the hormones created by the endocrine system

D carrying the nerve responses to the brain

112 Deoxygenated blood returns to the _____ _______ of the heart

A left atrium

B right atrium

C left ventricle

D right ventricle

113 The system that works with the circulatory system by cleaning the blood is the

A emphatic system

B lymphatic system

C endocrine system

D axial system

114 All of the following are First Lines of Defense of the immune system EXCEPT

A skin

B respiratory system

C white blood cells

D digestive system

115 The system that sends the signal for your body to shiver to create warmth is the

A muscular system

B circulatory system

C nervous system

D endocrine system

116 The part of the brain that coordinates voluntary muscle movement and regulates balance and posture is the

A cerebellum

B cerebrum

C brain stem

D frontal lobe

117 This system is vital to sensing change in the environment

A circulatory

B muscular

C integumentary

D nervous sytem

118 The part of the eye that detects colors is the

A rods

B cones

C retina

D pupil

119 The inner ear is responsible for detecting sound and

A amplifying the sound

B maintaining balance

C housing the ear drum

D controlling fluid

120 Hormones are transported to their destination by

A red blood cells

B carrier proteins

C circulatory system

D respiratory system