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...
Earthworm castings are the remains leftover after an earthworm has digested organic matter. This material is often used an organic plant food because of its high nutrient content. Earthworm casting are typically produced by adding several earthworms to piles of organic matter. The castings are then ...
Wormsare invertebrates that don't have legs. They live in soil, water, or inside other animals as parasites. Worms include earthworms, tapeworms and leeches. How do arthropods eat? Arthropodsingest food through their mouth, which then passes through the pharynx and down the esophagus, similar ...