Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

Ex Input:
Question: While similar to insects, what eight-legged invertebrates lack antennae or wings? Answer: arachnids

Ex Output:
Arachnids do not have antennae or wings.

Ex Input:
Question: What do the liver, gallbladder, and pancreas contribute that aid in digestion? Answer: chemicals

Ex Output:
The liver, gallbladder, and pancreas contribute chemicals that aid in digestion.

Ex Input:
Question: What are all of the living or once-living aspects of the environment called? Answer: biotic factors

Ex Output:
Biotic factors are all of the living or once-living aspects of the environment. They include all the organisms that live there as well as the remains of dead organisms.