Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Q: Invertebrates (and higher animals) can also be placed in one of two groups based on how they develop as embryos.

A: Invertebrates (and higher animals) can also be placed in one of two groups based on how they develop as what?
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Q: One of the properties of an air mass is that an air mass has similar temperature and moisture properties throughout it.

A: Which of the following is true regarding the properties of an air mass?
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Q: Gap genes controls the shape of a developing zygote early in its development.

A:
What controls the shape of a developing zygote early in its development?
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