instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Present-day plants that have a complex vascular tissue system are called vasuluar plants.
answer:
Present-day plants that have a complex vascular tissue system are called what kind of plants?


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:
Prokaryotes are unicellular organisms that lack organelles surrounded by membranes.
answer:
Prokaryotes are unicellular organisms that lack organelles surrounded by what?