Ques:Q: When matter recycles and changes state what does it gain or lose by doing so? Choices: - density - volume - fuel - energy A:

Ans:energy
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Ques:Q: Where do ectotherms get most of their heat? Choices: - food - metabolism - internally - external sources A:

Ans:external sources
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Ques:Q: More than half the compounds produced by the chemical industry are what? Choices: - replacement polymers - artificial polymers - gas polymers - synthetic polymers A:

Ans:synthetic polymers
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Ques:Q: What is the basis of the classification of protists? Choices: - conditions shared - mutations shared - tails shared - traits shared A:

Ans:
traits shared
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