Earthworms: Earthworms are hermaphrodites, which means that they have both male and female sex organs. They are usually found in soil and are an essential part of the ecosystem. Facts About Earthworms: An earthworm is a terrestrial invertebrate whose class and order are Clitellata and Oligochaeta...
Worms. Did you ever stop and think about what’s under your feet, under the grass, in the soil? Aside from tiny microorganisms breaking down organic material there are earthworms. If you haven’t spent much time mulling over worms, don’t worry, because others have. One of the most famo...
Do earthworms have exoskeletons? Does a firefly have an exoskeleton? Do nematodes eat ticks? Which arthropods have waxy exoskeletons? Do sandhoppers have exoskeletons? Do deuterostomes have exoskeletons? Do all mollusks have a calcareous exoskeleton?
31. What are the hardened spike-like structures on the parapodia called? Answer: thesecirri (setae)may break off into your fingers and cause a very painful sting. Do annelids have a respiratory system? Respiration. In some annelids, including earthworms,all respiration is via the skin. Howe...
Earthworms, leeches, and polychaete worms havea closed circulatory system; meaning, the inner space of their bodies are filled with blood vessels that carry blood, nutrients, and oxygen throughout the body. ... Like our veins and arteries, these vessels move blood from a series of hearts that...
aTypically only a few inches (7 or 8 centimeters) in length, some members of this species have been known to grow to a serpentine 14 inches (35 centimeters). Earthworms’ bodies are made up of ring-like segments called annuli. These segments are covered in setae, or small bristles, which...
Earthworms have a distinctive way of moving. They are adapted to living underground, which is where they spend their time when it’s not raining, and these adaptations have led to the unique way they move. They move by using two different sets of muscles. The first kind is rings that are...
Earthworms C. Flatworms D. Octopi E. Snails Barnacles are sessile filter feeders but unlike bivalves, they have internal fertilization. How do they solve this problem? a. They are only capable of asexual reproduction. b. The filter sperm from the water column. c. They are hermaphrodites ...
aTypically only a few inches (7 or 8 centimeters) in length, some members of this species have been known to grow to a serpentine 14 inches (35 centimeters). Earthworms’ bodies are made up of ring-like segments called annuli. These segments are covered in setae, or small bristles, which...
Earthwormsplayakeyroleinmanysoilprocesses,includingsoilturnover,aeration,anddrainage,aswellasthe breakdownandincorporationoforganicmatter(Edwards,2004).Unti1now,forthegenusDrawidaMichaelsen,about21 nominalspeciesandsubspecieshavebeenrecordedinChina:Drawidabimaculata(Zhong,1992),D.changbaishanensis ...