Worms

A:

An earthworm's food is consumed, stored and broken down inside its digestive tube, which starts at the mouth and ends at the anus. Along the way, ingested soil is ground down to finer particles, allowing blood vessels in the intestine to absorb nutrient-rich organic matter.

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  • How do flatworms obtain food?

    Q: How do flatworms obtain food?

    A: A flatworm obtains its food through cells on the surface of its body and also through the orifice at the top of the head. The cells absorb nutrients from the water by diffusion, and when digestion is complete, the mouth orifice also serves as the anus.
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  • What is the life cycle of a tapeworm?

    Q: What is the life cycle of a tapeworm?

    A: The life cycle of a tapeworm starts as an egg, which is consumed and stored by an invertebrate. The invertebrate is then consumed by a vertebrate host in which the tapeworm develops and breeds. Some exceptions to this general pattern exist, such as when eggs are retained and hatch within the vertebrate host. Otherwise, fertilized eggs or body segments loaded with fertilized eggs are excreted for invertebrates to consume.
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  • How do flatworms move?

    Q: How do flatworms move?

    A: Flatworms move in various ways. Some use muscular movements of their bodies, whereas others have soles underneath for locomotion. Some spit mucus and use it as a rope to pull themselves. Some aquatic species use their cilia, or small moving hairs, to swim. Some burrow, anchoring with their rear ends and moving their heads. Parasites within hosts use suckers, hooks or spines.
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  • What is the habitat of an earthworm?

    Q: What is the habitat of an earthworm?

    A: The common earthworm lives within soil, but it often emerges from the ground at night and after periods of heavy rain. Earthworms are found abundantly all across North America, Europe and western Asia.
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  • What can you use to kill grub worms?

    Q: What can you use to kill grub worms?

    A: Grub worms can be killed by both natural methods and by purchasing grub worm treatments. Natural methods include applying milky spores or neem oil to the affected area or adding nematodes to the soil. Purchased treatments include Dylox, Merit and Mach-2.
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  • How do tapeworms move?

    Q: How do tapeworms move?

    A: Tapeworms do not move much on their own, as their main purpose is to stay attached to the digestive tract of their host animals. They are, however, composed of hundreds or thousands of segments called proglottids. Each proglottid has functional muscles and is fully capable of movement.
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  • Of what economic importance are earthworms?

    Q: Of what economic importance are earthworms?

    A: Earthworms play a vital role in breaking down organic particles in soil and aerating soil, and their waste, called castings, is used by gardeners as fertilizer. They also play a role as bait in fly fishing.
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  • How do earthworms digest food?

    Q: How do earthworms digest food?

    A: An earthworm's food is consumed, stored and broken down inside its digestive tube, which starts at the mouth and ends at the anus. Along the way, ingested soil is ground down to finer particles, allowing blood vessels in the intestine to absorb nutrient-rich organic matter.
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  • How do silkworms make silk?

    Q: How do silkworms make silk?

    A: Silkworms make silk by spewing a substance called fibroin through small holes in their jaws called spinnerets. The spewed-out substance consists of digested leaves and protein produced by the worm. The silkworm produces up to 1200 silken threads within a 72 hour time period, creating a soft, silver cocoon. Once the cocoon process is complete, silk farmers harvest the threads with steam, and the delicate fibers are spun and woven into silk fabrics.
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  • How many hearts does an earthworm have?

    Q: How many hearts does an earthworm have?

    A: An earthworm has five aortic arches, each functioning similarly to a heart. The aortic arches have the purpose of pumping blood through the dorsal and ventral blood vessels. The dorsal blood vessel carries blood to the front of the body, while the ventral vessel carries blood to the back.
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  • What are some interesting facts about mealworms?

    Q: What are some interesting facts about mealworms?

    A: Mealworms are the larvae of darkling beetles. They are often raised as food for pet lizards, fish and birds or used by fishermen as bait. Adult darkling beetles lay their eggs in soil, and the eggs hatch after a period of time ranging from a few days to one month. Mealworms begin to eat as soon as they hatch.
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  • What are examples of arthropods?

    Q: What are examples of arthropods?

    A: Arthropods, such as insects, shrimps, spiders, centipedes, crayfish, scorpions and millipedes, are the most diverse group of animals in the world. They can be seen on land, in the air and in the sea and are classified under the phylum Arthropoda. Many arthropods remain undiscovered, and the number of species in the largest arthropod class, insects, is assumed to be in the tens of millions.
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  • What is a flatworm?

    Q: What is a flatworm?

    A: A flatworm is any member of the phylum Platyhelminthes, which is a group of flattened invertebrates that have soft bodies. There are different species of flatworm, but 80 percent of them are parasitic. This means that most flatworms live in another organism to obtain nourishment from it.
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  • What is a grub worm?

    Q: What is a grub worm?

    A: Grub worms, also called lawn grubs, are white worm-like pests that live in the soil. They are the larval form of the adult Japanese beetle, sometimes called the June beetle. Each larva is about ½ inch long with a small brown head.
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  • Do earthworms eat soil?

    Q: Do earthworms eat soil?

    A: Earthworms eat organic matter like plant material, microorganisms and dead animals that are found in soil, but they don’t actually eat the soil. However, their droppings, called castings, become a part of the soil, which benefits living plants, according to HowStuffWorks.
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  • What do silkworms eat?

    Q: What do silkworms eat?

    A: Silkworms eat mulberry leaves exclusively in nature. Silkworm farms and manufacturers that keep the worms have the option to feed their worms a special artificial mulberry diet.
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  • Q: What is an Alaskan bull worm?

    A: An Alaskan bull worm is a fictitious, animated animal from the second-season episode of "SpongeBob SquarePants" entitled "Sandy, SpongeBob, and the Worm." The creature is large enough to engulf the entire town of Bikini Bottom, and the town's residents try to save themselves by pushing the buildings out of the way while Sandy Cheeks and SpongeBob attempt to corral the giant worm.
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  • Q: How many feet does a centipede have?

    A: The number of feet a centipede has depends on the number of body segments it has, and this number varies by species. There is one pair of legs for each segment. Contrary to popular belief, most centipedes do not have 100 legs, even though "centipede" means "100-footed."
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  • Q: How do you get rid of bag worms on pine trees?

    A: The best way to remove bag worms from pine trees is to remove the bags by hand or to kill the bag worms using an insecticide. Controlling bag worm population is important as they can spread from tree to tree.
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  • Q: Why are earthworms unable to self-fertilize?

    A: A common misconception is that, because earthworms have both male and female sex organs, they can self-fertilize. However, earthworms? sex organs grow at opposite ends of their bodies, making it impossible for one worm to fertilize its own eggs.
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  • Q: What is the life cycle of an earthworm?

    A: Eggs that come from earthworms are wrapped in a protective cocoon. The eggs are sequestered in the ground for protection. Earthworms are able to hatch in 14 days in warm weather but take up to 60 days to hatch in cold weather. The average lifespan of a worm is four to eight years.
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