instruction:
Given a scientific passage and an answer, generate a question for the given answer.
question:
Passage: Sponges come in a variety of shapes and sizes. For example, they may be shaped like tubes, fans, cones, or just blobs. They range in diameter from about a centimeter (0.4 inches) to over a meter (3.3 feet). Many species live in colonies that may be quite large. Adult sponges are sessile. This means they are unable to move from place to place. Root-like projections anchor them to solid surfaces such as rocks and reefs. Answer: sponges
answer:
Root-like projections anchor adults of what colony-dwelling animals to solid surfaces such as rocks and reefs?

question:
Passage: In many ways, humans are unique among mammals. For example, we have bigger brains and a greater ability to learn than any other species in the mammalian class. In many ways, however, we are typical of the mammalian order to which we belong. That order is the Primate Order. To fully understand what it means to be human, you need to know more about this fascinating order of mammals. Answer: humans
answer:
What mammalian class has the greatest ability to learn?

question:
Passage: Guinea worm is a serious problem in parts of Africa that is being eradicated. Learn what is being done to decrease the number of people suffering from this parasite at the video below:. Answer: africa
answer:
Where is the guinea worm a serious problem?