Nettet30. jan. 2024 · Annelida – More complex than Platyhelminthes, these are segmented and symmetrical worms containing a nervous system, respiratory system, and sense organs. Examples include the common earthworm and leeches. Mollusca – The second largest phylum by species count, and the largest marine phylum. Invertebrates with soft … NettetThere are, however, major differences between the two principal classes within this phylum. Associate the following characteristics with the appropriate annelid class. Polychaeta: -Primarily marine habitat -Parapodia -Many chaetae -Trochophore larvae Clitellata: -Thickened band on the body -Few or no chaetae -Hermophroditic -Terrestrial …
Worms: Phyla Platyhelmintes, Nematoda, and Annelida
NettetPhylum Chordata The Chordates possess the following characteristics: They are bilaterally symmetrical, triploblastic with an organ-system level of classification. They possess a notochord and a nerve cord. The circulatory system is closed type. Phylum Chordata can be divided into the following sub-phyla: Urochordata Cephalochordata … NettetNCERT Class 9 Science Lab Manual – Animal Kingdom EXPERIMENT Aim To observe and draw the given specimens—earthworm, cockroach, bony fish and bird. For each specimen record One specific feature of its phylum One adaptive feature with reference to its habitat. Theory Animal Kingdom: These are the organisms which are eukaryotic, … hanabee discount code
Kingdom Animalia (Phylum, Subphylum) - An Overview - BYJU
Nettet20. jul. 1998 · leech, (subclass Hirudinea), any of about 650 species of segmented worms (phylum Annelida) characterized by a small sucker, … Leeches are segmented parasitic or predatory worms that comprise the subclass Hirudinea within the phylum Annelida. They are closely related to the oligochaetes, which include the earthworm, and like them have soft, muscular segmented bodies that can lengthen and contract. Both groups are hermaphrodites … Se mer Some 680 species of leech have been described, of which around 100 are marine, 480 freshwater and the remainder terrestrial. Among Euhirudinea, the true leeches, the smallest is about 1 cm (1⁄2 in) long, and the largest … Se mer • Ruppert, Edward E.; Fox, Richard S.; Barnes, Robert D. (2004). Invertebrate Zoology, 7th Edition. Cengage Learning. ISBN 978-81-315-0104-7. Se mer • Media related to Hirudinea at Wikimedia Commons • Data related to Hirudinea at Wikispecies Se mer Leeches show a remarkable similarity to each other in morphology, very different from typical annelids which are cylindrical with a fluid-filled space, the coelom (body cavity). In leeches, … Se mer Bites Leech bites are generally alarming rather than dangerous, though a small percentage of people have severe allergic or anaphylactic reactions and require urgent medical care. Symptoms of these reactions include red … Se mer Nettetjellyfish, any planktonic marine member of the class Scyphozoa (phylum Cnidaria), a group of invertebrate animals composed of about 200 described species, or of the class Cubozoa (approximately 20 … hana bed attachments