Webannelid, phylum name Annelida, also called segmented worm, any member of a phylum of invertebrate animals that are characterized by the possession of a body cavity (or coelom ), movable bristles (or setae ), and a body … WebPhylum Annelida are segmented worms found in marine, terrestrial, and freshwater habitats, but the presence of water or humidity is a critical factor for their survival in terrestrial …
Flatworms, roundworms, and annelids Flashcards Quizlet
WebOct 14, 2024 · The purpose of this paper is to compare three phyla: Phylum Platyhelminthes, Phylum Annelida and Phylum Nematoda. Comparison. The phyla mentioned above are all worms. These are invertebrate animals which have a bilateral symmetry (Exploring our Fluid Earth 1). They all have a definite anterior end and a posterior end (Exploring our Fluid … WebAnnelids (the segmented worms) have a long history in studies of animal developmental biology, particularly with regards to their cleavage patterns during early development and their neurobiology (Ferrier, n.d.). Annelids possess a coelom, which in arthropods is present only in the embryo. lvp by mondiapic
18.1 Sponges, Cnidarians, Flatworms, and Roundworms
WebThe flatworms were the first invertebrates to exhibit bilateral symmetry and also the first to develop a central nervous system with a brain. The nervous system of a free-living flatworm such as Planaria consists of a brain, longitudinal nerve cords, and peripheral nerve plexuses (interlacing networks of peripheral nerves; from Latin plectere, “to braid”). WebWhich of the following characteristics would enable you to argue that it is more closely related to a flatworm (platyhelminthes) than it is to a earthworm (annelid)? O A) It has no coelom. B) It is shaped like a worm. C) It is a suspension feeder. 0 D) It has a mouth and an anus. Unsure if this answer is the correct one, help WebDec 30, 2024 · Flatworms (phylum Platyhelminthes) are simple animals that are slightly more complex than a cnidarian. Roundworms (phylum Nematoda) have a slightly more … king size bed in a box