Given a scientific question, generate a correct answer to it.

Q: What structure consists of an outer layer of cells called the trophoblast and an inner cell mass called the embryoblast?

A: blastocyst
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Q: A complementary pair of chromosomes have genes for the same characteristics in the same location on the chromosome are known as?

A: homologous chromosomes
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Q: What kind of container is used to measure heat changes during a chemical reaction or physical process?

A:
calorimeter
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