Answer:
Any of various invertebrate animals having a soft, long body that is round or flattened and usually lacks limbs. The term worm is used variously to refer to the segmented worms (or annelids, such as the earthworm), roundworms (or nematodes), flatworms (or platyhelminths), and various other groups.
worm, any of various unrelated invertebrate animals that typically have soft, slender, elongated bodies. Worms usually lack appendages; polychaete annelids are a conspicuous exception.
Explanation:
The average worm lifespan is around 4-8 years, depending on the species of worm. There are also several other factors that impact their lifespan, which include surroundings, food, and other external environments.
Do worms have brains? Yes, although they are not particularly complex. Each worm's brain sits next to its other organs, and connects the nerves from the worm's skin and muscles, controlling how it feels and moves.
But a team of Swedish researchers has uncovered evidence that worms do indeed feel pain, and that worms have developed a chemical system similar to that of human beings to protect themselves from it.
Worms don't have just one heart. They have FIVE! But their hearts and circulatory system aren't as complicated as ours -- maybe because their blood doesn't have to go to so many body parts.
(sorry for how long it is, I was explaining worms and as many things as I can about them to get a better understanding)
And here's a meme for you!
