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20
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What is an exoskeleton and which organisms have them?
outside skeleton; hard body covering; arthropods, insects, mollusks, arachnids, etc.
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monster
Reset all scores!
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seesaw
Swap points!
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shark
Other team loses 25 points!
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thief
Give points!
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25
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eraser
Reset score!
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fairy
Take points!
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25
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rocket
Go to first place!
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thief
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25
15
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What is the difference between open and closed circulation?
Open: blood not entirely enclosed within the vessels; closed: blood entirely enclosed within the vessels.
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25
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Why is excretion of wasteful materials important in the body?
They have no value and may be poisonous to cells.
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lifesaver
Give 25 points!
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shark
Other team loses 5 points!
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rocket
Go to first place!
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banana
Go to last place!
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15
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What happens to an animalâs exoskeleton as the animal grows?
They are shed and replaced as they are outgrown.
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20
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What is a hydrostatic skeleton and which organisms have them?
Water bones; fluid-filled cavity surrounded by muscle fibers; cnidarians, worms, some mollusks.
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10
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What is circulation?
The movement of important materials throughout the body.
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10
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Where does respiration take place?
The lungs.
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25
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Discuss the different ways that invertebrates digest and excrete food.
Wow, you really know your stuff! / Sorry, we were looking for...
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10
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Why would the circulation of a cold-blooded animal slow down at night?
Lack of solar energy.
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15
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Find and explain an example of diffusion in the kitchen.
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heart
Other team wins 25 points!
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shark
Other team loses 5 points!
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gift
Win 25 points!
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lifesaver
Give 10 points!
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