Top of FormWhat is the circulatory system?The body's breathing systemThe body's system of nervesThe body's food-processing systemThe body's blood-transporting system

From what source do cells get their food?BloodOxygenOther cellsCarbon dioxide

Why is oxygen important to blood and to the cells?Oxygen helps the blood to clot.

14

Oxygen brings food to the cells.

Oxygen is necessary for cell growth and energy.

Oxygen is not important -- carbon dioxide is the mostimportant substance to the body.

Which type of blood vessels carries blood away from the heart?VeinsArteriesCapillariesArteries, veins and capillaries

Why is blood that flows from the lungs to the heart bright red rather than dark red?Oxygen makes it red.

Carbon dioxide makes it red.

Gastric juices produce the red colour of the blood.

The lungs add a pigment (dye) to blood as it flowsthrough them.

What part of the blood carries minerals, vitamins, sugar, and other foods to the body's cells?Plasma

Platelets

Red corpuscles

White corpuscles

What is the main job of the red corpuscles in the blood?To clot blood

To fight disease

To transport oxygen to the body's cellsand carry away carbon dioxide from the cells

To transport carbon dioxide to the body's cells andcarry away oxygen from the cells

Which of the following can best be compared to soldiers?LungsCapillariesRed blood cellsWhite blood cellsWhich element in the blood is round and colourless?PlasmaPlateletsRed blood cellsWhite blood cellsWhat would happen to people who have an open wound and whose blood did not clot naturally?They would bleed to death.Nothing. Clotting is not important.They would have to take special clotting drugs.They would have to take regular doses of plasma.

What happens when a clot occurred in an undamaged blood vessel?You would bleed to death.

A scab will form on the skin surface.

Platelets stick to the edges of the cut and to one another,forming a plug.

The flow of blood to tissues beyond the clot may be cut off.

What happens to blood when it is pumped into the thin-walled blood vessels of the lungs?Platelets are exchanged for plasma.

Carbon dioxide is replaced with oxygen.

Blood fills the lungs and causes coughing.

Nothing -- the lungs are just a place blood goes throughon its way back to the heart.

What is the function of the blood vessels and capillaries?They pump blood to the heart.

They filter impurities from the blood.

They carry blood to all parts of the body.

They carry messages from the brain to the muscles.

Why does blood turn dark red as it circulates through the body?It starts to clot.

It gets old and dirty flowing through the body.

The oxygen in it is replaced with carbon dioxide.

The farther blood is from the heart, the more dark red it is.

How many major types of blood have scientists discovered?One: Type "O"Two: white cells and red cellsThree: white cells, red cells, and plasmaFour: Types A, B, AB, and O

What is the organ that pumps blood all throughout the human body?The lungsThe heartThe kidneysThe blood vessels and capillaries1.Which of the following is NOT function of white blood cells.

A.Guard against infection.

B.Fight parasites.

C.Attack bacteria.

D.Carry oxygen.

2.What happens when blood pools in the veins?

A.You fall over.

B.You become paralyzed.

C.You get varicose veins.

3.What is the circulatory system?

A.The system that helps your body breathe.

B.Your body's muscles.

C.Your body's nerves.

D.Your body's blood transporting system.

4.What divides the left side of the heart from the left side?

A.Septum.

B.Atrium.

C.Ventricles.

D.Wall.

1 comment5.The heart has how many chambers?

A.1

B.2

C.3

D.4

E.5

6.Red blood cells transport ______.

A.Oxygen.

B.Carbon dioxide.

C.Nitrogen.

D.Hydrogen.

7.Where do arteries carry blood?

A.To the heart.

B.Away from the heart.

8.Plasma is about _____ percent water.

A.60

B.70

C.80

D.90

E.95

9.What do we call platelet plugs?

A.Scabs.

B.Band aids.

C.Cuts.

D.Bruises.

1 comment10.What is blood clotting made possible by?

A.Platelets.

B.Hemoglobin.

C.Lymphocytes.

D.Plasma.

11.The right side of the heart pumps the blood _____ the heart ______ the lungs.

A.to, from

B.from, to

C.to, to

D.from,from

12.When in the lungs, the __________ leaves the blood

A.Oxygen

B.Carbon Dioxide

C.Nitrogen.

D.Phosphorus.

2 comments13.The left and right sides of your heart work ____.

A.Together.

B.Seperately.

C.Against each other.

D.None of the above.

1 comment14.What is the smallest blood vessel?

A.Arteries.

B.Capillaries.

C.Veins.

15.What is your strongest muscle?

A.Your lungs.

B.Your legs.

C.Your arms.

D.Your heart.

16.Where is plasma found?

A.In blood.

B.In urine.

C.In your brain.

D.In your muscles.

17.The heart is located near the center of your....

A.stomach.

B.head.

C.chest.

D.back.

18.The heart is about the size of your...

A.leg.

B.brain.

C.arm.

D.fist.

19.Which of the following could be compared to soliders?

A.Your heart.

B.Red blood cells.

C.White blood cells.

D.Your lungs.

20.What color are white blood cells?

A.White.

B.Red.

C.Yellow.

D.Colorless.

2 comments21.The movement of blood through the herat and body is called circulation. True or False.

A.True.

B.False

2 comments22.Where to the veins carry blood?

A.To the heart.

B.Away from the heart.

23.With circulation, the heart provides your body with:

A.Oxygen

B.Nutrients

C.A way to get rid of waste

D.All of the above.

24.What is your heart made of?

A.Skin.

B.Tissue.

C.Muscle.

2 comments25.The circulatory system is composed of...

A.the heart, blood, and blood vessels.

B.the heart, the brain, and the lungs.

C.the lungs, the blood, and the blood vessels.

D.the brain, the heart, and the blood vessels.

5 comments26.What is the most common type of blood cells?

A.White blood cells.

B.Platelets.

C.Red blood cells.

27.White blood cells contain a _______, while red blood cells do not.

A.Nucleus.

B.Brain.

C.Red color.

D.Hemoglobin.

1 comment28.What links the arteries to the veins?

A.Muscle.

B.Capillaries.

C.Aorta.

29.What is the largest blood vessel?

A.Aorta.

B.Artery.

C.Capillary.

D.Veins.

1 comment30.What is another name for a T lymphoctyes?

A.T-cells.

B.B-cells.

C.Hemoglobin.

D.Red blood cell.

Nervous system1.A special nerve filament that arises from the cell body and travels up to a meter.

A.Dendrite

B.axon

C.soma

1 comment2.The major set of large set of nerves running down the spinal column or vertebrae.

A.axon

B.dendrite

C.spinal cord

3.The major organ of the nervous system encased in the skull.

A.neuron

B.axon

C.brain

4.This is made up of the brain and spinal cord.

A.peripheral nervous system

B.central nervous system

C.enteric nervous system

5.Helping cells of the brain.

A.axons

B.dendrites

C.glia

6.This part of the brain controls coordination and balance.

A.cerebrum

B.cerebellum

C.medulla oblongata

7.Specialized connection with other cells.

A.Synapse

B.lobe

C.cerebrum

2 comments8.A subsystem of the peripheral nervous system.

A.enteric nervous system

B.central central nervous system

C.voluntary nervous system

9.A filament that arises from the neuron cell body and extends for micrometers. A cluster of them form a tree.

A.Dendrite

B.axon

C.soma

10.The cell body of a neuron.

A.Dendrite

B.axon

C.soma

11.Nerve cell

A.cerebrum

B.cerebellum

C.neuron

12.Made up of sensory neurons, clusters of neurons called ganglia and the nerves connecting them to each other and the central nervous system.

A.central nervous system

B.peripheral nervous system

C.enteric nervous system

13.The part of the brain in charge of thinking and memory.

A.cerebrum

B.cerebellum

C.medulla oblongata

14.The part of the brain in charge of involuntary actions such as breathing, heartbeat.

A.cerebrum

B.cerebellum

C.medulla oblongata

15.This is the job of the nervous system.

A.To send messages to and from the brain and spinal cord to and from the body.

B.To break down food to be used by the body.

C.To remove wastes from the body.

ECOSYSTEM1. The _________________ is part of the Earth in which life exists. It includes the land, water, and air/atmosphere.A. biosphereB. habitatC. nicheD. community2. ________________ are organisms that break down and obtain energy from dead organic matter.A. ProducersB. DecomposersC. AutotrophsD. Herbivores3. The full range of physical and biological conditions in which an organism lives and the way in which the organism uses these conditions is known as a _______________.A. biosphereB. habitatC. nicheD. community4. A _______________ is a step in the food chain.A. communityB. biosphereC. food webD. trophic level5. The scientific study of interactions among organisms and between organisms and their environment is _________________.A. biosphereB. ecologyC. trophic levelD. community6. ________________ is/are the ultimate source of energy for all life on Earth.A. PlantsB. DecomposersC. SunlightD. Water7. During _______________, autotrophs use light energy to convert carbon dioxide and water into oxygen and energy-rich carbohydrates such as sugars and starches.A. chemosynthesisB. photosynthesisC. evaporationD. nitrogen fixation8. The biological influences on organisms within an ecosystem are called _______________.A. biotic factorsB. abiotic factorsC. nonrenewable resourcesD. biomes9. The energy stored by producers can be passed through an ecosystem along a ________________, a series of steps in which organisms transfer energy by eating and being eaten.A. food webB. habitatC. nicheD. food chain10. A(n) ________________ is a diagram that shows the relative amounts of energy or matter contained within each trophic level in a food chain or food web.A. ecological pyramidB. biosphereC. biomeD. green revolution11. A _______________ is a group of ecosystems that have the same climate and dominant communities.A. biosphereB. biomeC. nicheD. habitat12. Physical, or nonliving, factors that shape ecosystems are _______________.A. communitiesB. biotic factorsC. abiotic factorsD. trophic levels13. A group of individuals of the same species that live in the same area is known as a _______________.A. speciesB. populationC. nicheD. community14. A __________________ is an assemblage of different populations that live together in a defined area.A. speciesB. populationC. nicheD. community15. An organism that obtains energy by eating animals are known as _______________.A. carnivoreB. herbivoreC. detritivoreD. producer16. A network of complex interactions formed by the feeding relationships amoung the various organisms in an ecosystem is a _________________ .A. food webB. trophic levelC. food chainD. community17. ________________ is the process by which some organisms use chemical energy to produce carbohydrates.A. PhotosynthesisB. Cell RespirationC. ChemosynthesisD. Fermentation18. A _______________ is an organism that can capture energy from sunlight or chemicals and use it to produce food from inorganic compounds.A. consumerB. producerC. decomposerD. heterotroph19. The total ammount of living tissue within a given trophic level is known as _______________.A. biomassB. biosphereC. food chainD. niche20. _________________ is the process in which elements, chemical compounds, and other forms of matter are passed from one organism to another and from one part of the biosphere to another.A. BiosphereB. Limiting nutrientsC. Biogeochemical cycleD. Community21. ________________ is any chemical substance that an organism requires to live.A. CarbohydrateB. NutrientC. SunlightD. Water22. _________________ is the process of converting nitrogen gas into ammonia.A. ChemosynthesisB. PhotosynthesisC. EvaporationD. Nitrogen fixation23. In ecology, the term _______________ is used to describe wise management of natural resources, including the preservation of habitats and wildlife.A. conservationB. biodiversityC. invasive speciesD. extinction24. The Sum total of the variety of organisms in the biosphere is called _______________.A. a biotic factorB. an abiotic factorC. biodiversityD. a population25. _________________ is the science that seeks to understand the living world.A. biologyB. ecologyC. chemistryD. physicsMatter1. What are the four states of matter?color, shape, size, and densitya. solid, liquid, vacuum, and plasmab. heat, temperature, length, and massc. solid, liquid, gas, and plasma2. Particles of matter havebecause they are constantly moving.a. volumeb. densityc. kinetic energyd. heat3. The 3 main states of matter are,, and.4. Their molecules are tightly packed together.a. Solidsb. Liquidsc. Gases5. They cannot be held in hand.a. Solidb. Liquidc. Gasd. Both B And C6. Liquids do not take the shape of the container.a. Trueb. False7. Liquid particles move slower than gas particles.a. Trueb. False8 Gases don't have a definite shape, instead they fill up any available space.a. Trueb. False9. Melting is ....a. when a substance changes from a solid to a liquid (i.e. from ice to water)b. when a substance changes from a liquid to a solid (e.g. water to ice)

10. The three states of matter aresolid,liquidandgas

11. Gas particles move slower than liquid particles.a. Trueb. False12. Gas particles are held more tightly than liquid particles.a. Trueb. False13. Gases have a definite volume.a. Trueb. False14. If you drain the last drops out of a plastic bottle of Coke, is the bottle now empty?a. Yes, because all the liquid that was inside it is now gone.b. No, because although the liquid has gone, the bottle still has air inside it.15. Liquid particles are held more tightly than gas particles.a. Trueb. False16. Gases can be easily compressed.a. Trueb. False17. 45 degrees F is the freezing point of water.a. Trueb. False18. Evaporating is when...a. a substance changes from a liquid to a gas by heating it to its boiling point (i.e water in a kettle turning to water vapour)b. a substance changes from a liquid to a gas (or vapour) naturally (ie. when a puddle dries by the water in it evaporating)c. a substance changes from a gas (or vapour) into a liquid (ie. water vapour condenses to tiny droplets of water on a cold window)19. The particles of a liquid are further apart than those of a solid.a. Trueb. False20. Gases can flow.a. Trueb. FalseENERGY1.Which of the following is a conversion from chemical energy to thermal energy?

A.Coal is burned to boil water.

B.Food is digested and used to regulate body temperature.

C.Charcoal is burned in a barbeque pit.

D.All of the above.

2.Which of the following is the best example of increasing an object's potential energy?

A.rolling a bowling ball

B.turning on a light bulb

C.stretching a rubber band

D.dropping a pencil

3.An object that has kinetic energy must be...

A.lifted above earth's surface.

B.in motion.

C.at rest.

D.None of the above.

4.Thermal energy is...

A.kinetic.

B.potential.

C.both kinetic and potential.

D.neither kinetic nor potential.

5.Sound energy is...

A.the energy of a compound that changes as its atoms are rearranged to form new compounds.

B.the total energy of the particles that make up an object.

C.The energy caused by an object's vibrations.

D.the energy of motion.

6.What device converts chemical energy to mechanical energy?

A.human

B.car

C.jet ski

D.All of the above.

7.As height increases, so does...

A.thermal energy.

B.mechanical energy.

C.kinetic energy.

D.potential energy.

8.The law of _________________ of energy states that energy cannot be created or destroyed.

A.transformation

B.absorption

C.conservation

D.stability

9.According to the law of conservation of energy, in theory, a bouncy ball should never stop bouncing. However, we know that it eventually stops. Where does the energy go.

A.some gets converted into sound energy and escapes into the surroundings.

B.some gets converted into thermal energy and escapes into the surroundings.

C.Both A and B

10.Energy is...

A.when the surfaces of two objects rub against each other.

B.the ability to do work.

Solar systemTop of FormWhat two elements is the universe made primarily of?Carbon and nitrogenHydrogen and heliumIron and nickelSilicon and oxygen

Bottom of FormTop of FormWhat is the correct order of the planets in the Solar System, starting closest to the Sun?Mars, Mercury, Earth, Venus, Jupiter, Saturn, Uranus, Neptune, PlutoMercury, Mars, Earth, Venus, Jupiter, Saturn, Uranus, Neptune, PlutoMercury, Mars, Venus, Earth, Jupiter, Saturn, Uranus, Neptune, PlutoMercury, Venus, Earth, Mars, Jupiter, Neptune, Uranus, Saturn, PlutoMercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, PlutoBottom of Form1. Top of FormWhat is thought to be the age of the nine planets relative to each other?The inner planets formed together first and then the outer planets formed together laterThe outer planets formed together first and then the inner planets formed together laterThey all formed at roughly the same timeThey formed sequentially from Pluto inward with the one nearest the sun formed lastThey formed sequentially from the sun outward with Pluto formed last

Bottom of Form2. Top of FormWhy does the moon have more craters than the earth?Craters develop much better on smaller planetary bodiesThe moon captured most asteroids before they could strike the earthThe moon has a stronger gravitational attraction than the earthThe moon has little tectonics or weathering to obliterate cratersThe moon is much older than the earth

Bottom of Form3. Top of FormWhat elements are the atmospheres of Jupiter and Saturn primarily composed of?Argon and kryptonHydrogen and heliumNitrogen and carbon dioxideNitrogen and methaneNitrogen and oxygen

Bottom of Form4. Top of FormWhere did the heavy elements that make up the bulk of the earth originate?In a supernovaIn meteoritesIn the Big BangIn the earth itselfIn the sun

Bottom of Form5. Top of FormWhat are the lunar maria made of?BasaltBrecciaGraniteSaltWater

Bottom of Form6. Top of FormWhich planet is closest in size to the earth?MarsMercuryNeptuneUranusVenus

Bottom of Form7. Top of FormWhich planet besides the earth has evidence of erosion by running water?MarsMercuryNeptuneUranusVenus

Bottom of Form8. Top of FormWhich planet has a runaway greenhouse effect?MarsMercuryNeptuneUranusVenus

Bottom of Form9. Top of FormWhich planet has virtually no atmosphere?MarsMercuryNeptuneUranusVenus

Bottom of Form10. Top of FormWhat is the largest planet in the solar system?EarthJupiterMarsNeptuneSaturn

Bottom of Form11. Top of FormWhich of the following planets is not a gas giant?JupiterNeptunePlutoSaturnUranus

Bottom of Form12. Top of FormWhich planet has the most extensive ring structure?JupiterNeptunePlutoSaturnUranus

Bottom of Form13. Top of FormWhat is Io?A cometA moon of JupiterA protoplanetAn asteroidThe nearest star

Bottom of Form14. Top of FormWhat speed is needed for a gas molecule to escape from a planet?Escape velocityOrbital speedSolar wind speedSpeed of lightSpeed of sound

Bottom of Form15. Top of FormWhat are comets mostly made of?AmmoniaHydrogenIceIronRock

Bottom of Form16. Top of FormWhat is the glowing head of a comet called?ComaCraterHeadMariaNovaBottom of Form

Food ChainThis is an example of a

A.food chain

B.food web

C.biosphere

D.producer

2.A producer in this food web is the

A.deer

B.grasshopper

C.rabbit

D.tree

3.The hawk in this food webis a

A.predator

B.prey

C.producer

D.herbivore

4.Which of these organisms is a herbivore?

A.owl

B.tree

C.bird

D.deer

5.Which of these food chains is correct?

A.deer>>>grass>>>grasshopper>>>tree

B.fox>>>rabbit>>>grass>>>grasshopper

C.grass>>>grasshopper>>>bird>>>owl

D.grass>>>tree>>>deer>>>grasshopper

6.Which animal is a omnivore?

A.deer

B.mouse

C.rabbit

D.bird

7.Which animal is a carnivore?

A.fox

B.bird

C.deer

D.grasshopper

8. What is the role of decomposers?

A.to return nutrients to the soil

B.to hunt small animals

C.to grow on a host organism

D.to only eat producers

9.Scavengers are predators.

A.True

B.False

10.Trees, bushes and flowers are all producers.

A.True

B.False

11..Ticks, fleas, mosquitos and leeches live off of host organsism. This means they are ___________________

12.Scavengers eat animals that are already __________________

13.What type ofsymbiosis exists between this crocodile and the Egyptian Plover bird?

A.mutualism-each organism benefits

B.parasitism-one parasite harms the host

C.commensalism-one organism benefits, the other is neither harmed or helped

D.weirdism-one organism is hungry, the other is crazy

14.Bacteria are decomposers that live in a person's mouth and intestines.

A.True

B.False

15.Rabbits are omnivores

A.True

B.False

16.A. B. C. D.Which of these isNOTa parasite?

A.A. Tick

B.B. Mosquito

C.C. Earthworm

D.D. Flea

17.The organism that depends on the sun for its energy is the ...

A.A. Grass

B.B. Rabbit

C.C. Fox

18.The tree and grass are producers. All of the other organisms in this food web are ...

A.Omnivores

B.Predators

C.Parasites

D.Consumers

19.Flowers are a butterfly's prey.

A.True

B.False

20.The vulture is a ...

A.decomposer

B.scavenger

C.parasite

D.producer

FOOD WEB

Which food chain correctly describes the flow of energy in an ecosystem?

A.grass-->cow-->human

B.caterpillar-->leaf-->human

C.cow-->grass-->human

D.leaf-->bird-->caterpillar

2.Rabbits eat grass and other plants to survive, but they do not eat animals. What kind of animal are rabbits?

A.decomposers

B.carnivores

C.producers

D.herbivores

3.How do decomposers help other organisms in an ecosystem?

A.They break down dead organisms and add nutrients back to the soil that plants use.

B.They use the sunlight to make their own food that other organisms eat for energy.

C.They help disperse seeds for plant growth.

D.Decomposers do not help other organisms in an ecosystem.

5 comments4.In what order do a hawk, grass, and rabbit form a food chain in a meadow?

A.hawk-->grass-->rabbit

B.grass-->hawk-->rabbit

C.rabbit-->grass-->hawk

D.grass-->rabbit-->hawk

5.Which of the following lists only consumers?

A.hawks, lizards, chipmunks

B.acorns, squirrels, rabbits

C.grass, chipmunks, ea

l