Leeches are a group of annelid worms, meaning their bodies are covered in rings or appear to have segments. They are parasitic creatures that have anesthetic in their saliva. This is why the animals they prey on do not realize there is a blood-sucking worm attached to them. ...
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What is a ribbon worm? What are blood flukes? What bugs have red blood? What are intestinal trematodes? What is a botfly? What is blood osmolality? What is a parasite? What is intestinal amoebiasis? What is a mayfly? What are fleas?
Roundworms (nematodes) arebilaterally symmetrical, worm-like organisms that are surrounded by a strong, flexible noncellular layer called a cuticle. Their body plan is simple. The cuticle is secreted by and covers a layer of epidermal cells. ... Nematodes move by contraction of the longitudinal ...
Sea anemones are cnidarians belonging to the order Actiniaria, which is further divided into suborders, infraorders, families, genera and species. The approximately 1,000 sea anemone species identified are classified into four suborders: Endocoelantheae
They’re “gross and slimy and flaccid and wiggling.” But parasites can be just as important as more charismatic animals—and many may be on the verge of disappearing.
In ancient Egypt and later medieval(中世纪) Europe, doctors put leeches on patients. They believed that the spineless wormlike living things can cure all kinds of illnesses by sucking(吮吸) a patient’s blood. In Europe and in the United States, millions of leeches were used throughout the ...
Examples of invertebrates include insects like a cockroach, flatworm, earthworm, crabs, snails, etc. What animals have a vertebrate? The 5 groups of vertebrates (animals that have a backbone) are fish, amphibians, reptiles, birds, and mammals. Invertebrates are animals that do not have a ...
What are the three major worm phyla? How could one compare and contrast these three phyla? Which phyla has more terrestrial organisms than the others? a. Echinodermata. b. Chordata. c. Cnidaria. d. Platyhelminthes. e. Porifera. Identif...
I hated watching them hook the worm. Piercing a living thing just seems so brutal, as does dangling it for a fish to devour from below. They also used leeches as bait sometimes. Leeches are annelids, too. You have to be careful not to get them on you, because they suck blood. You...