instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Terrestrial biomes are classified by climatic factors and types of primary producers.
answer:
What are classified by climatic factors and types of primary producers?


question:
In invertebrates group of animals several forms of asexual reproduction are found.
answer:
In what group of animals several forms of asexual reproduction are found?


question:
When an oxidation number of an atom is decreased in the course of a redox reaction, that atom is being reduced.
answer:

When an oxidation number of an atom is decreased in the course of a redox reaction, that atom is being what?