questions with answers |\ |\
To be useful in science, a hypothesis must be .... - CORRECT
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ANSWERS ✔✔Testable |\
What is meant by a 'controlled' experiment? - CORRECT
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ANSWERS ✔✔An independent variable is the only factor allowed
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to be adjusted, with the dependent variable as the factor that the
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independent variable affects.
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What is the difference between the control group and the
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experimental group? - CORRECT ANSWERS ✔✔Experimental |\ |\ |\ |\ |\ |\
group receives the variable being tested/ one variable at a time.
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Control group does not receive the test variable. Experimental
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groups are used to find answers in an experiment.
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Taxonomists determine into which taxa to classify and organism
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based on .... - CORRECT ANSWERS ✔✔Anatomical features
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The characteristics found in the members of superclass
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Crustacea include: - CORRECT ANSWERS ✔✔*Crabs
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*Lobsters
*Shrimp
*Barnacles
*Copepods
, Organisms classified as members of phylum Chordata are
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characterized by having a _______________ and a _____________
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___________ ________ at some point in their life cycle. - CORRECT
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ANSWERS ✔✔Notochord and a dorsal nerve cord
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Scientists think that __________ evolved during the Cambrian
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period, allowing vertebrates to become very successful
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predators. - CORRECT ANSWERS ✔✔Jaws
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Organisms in class Chondrichthyes include _________ and ______. -
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CORRECT ANSWERS ✔✔Shark and ray
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Traits that make sharks and rays successful predators include: -
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CORRECT ANSWERS ✔✔*A light cartilage skeleton
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*Backward-pointing denticles |\
*Ampullae of Lorenzini |\ |\
*Lateral lines |\
The largest shark is the ____________ ___________, which eats
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_______________. - CORRECT ANSWERS ✔✔Whale shark; plankton |\ |\ |\ |\ |\ |\
Marine reptiles include: - CORRECT ANSWERS ✔✔*Sea snakes
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*Saltwater crocodiles |\ |\
*Seven species of marine turtle
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