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

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

[EX Q]: The cytoskeleton holds cell organelles in place within the cytoplasm.
[EX A]: What part of the cell holds cell organelles in place within the cytoplasm?

[EX Q]: Animal behaviors are controlled by both genes and experiences in a given envionment.
[EX A]:
What is controlled by both genes and experiences in a given envionment?