------------------------------------------------- Annelid The annelids (also called "ringed worms")‚ formally called Annelida (from Latin anellus "little ring"[2])‚ are a large phylum of segmented worms‚ with over 22‚000 modern species including ragworms‚ earthworms and leeches. They are found in marine environments from tidal zones to hydrothermal vents‚ in freshwater‚ and in moist terrestrial environments.They are bilaterally symmetrical‚ triploblastic‚ coelomate organisms.They have parapodia
Premium Annelid
Introduction The annelids (also called "ringed worms")‚ formally called Annelida (from Latin anellus "little ring")‚ are a large phylum of segmented worms‚ with over 2‚000 modern species including ragworms‚ earthworms and leeches. Annelids are abundance in freshwater‚ brackish and marine sediments. They are bilaterally symmetrical‚ triploblastic‚ coelomate organisms. These invertebrates can be recognized by their segmented bodies. Segments each contain elements of such body systems as circulatory
Premium Annelid
Biology Animal Phylums "Write a three sentence description for each phylum and list two examples for each. Also‚ draw a picture of a common example from each. (or cut out of a magazine). You will be graded on how accurate your information is as well as neatness." Sponges (Porifera): Poriferans don’t have mouths; instead‚ they have tiny pores in their outer walls through which water is drawn. Cells in the sponge walls filter nutrients from the water as the water is carried through the body
Premium Animal Cnidaria Annelid
annelida mean? 2. Recall‚ some of the nematode worms appeared superficially to have external rings. Describe true segmentation in annelids. How is the true segmentation in annelids differ from having rings around the ectoderm as in nematodes? 3. What two layers of muscles exist in annelids? Which muscle layer‚ present in platyhelminthes‚ is absent in annelids? 4. Earthworms (class oligochaeta) and marine polychaete worms (class polychaeta) have bristles (“chaetes”) protruding from their body
Premium Annelid
arthropods evolved more recently from an annelid like ancestor then a nematode ancestor because of their similar body plan and segmentation. The other hypothesis is that arthropods evolved more recently from a nematode ancestor than an annelid like ancestor because of their shared ecdysis trait. Hypothesis 1 Nematoda Annalida Arthropoda Hypothesis 2 Annalida Nematoda Arthropoda Reasoning: The morphological data that supports hypothesis one is that annelids and arthropods both have segmented
Premium Arthropod Cellular respiration DNA
mollusk scrapes algae from rocks and twigs with its a) radula b) poison glands c) foot d) feathery gills 3. The cephalopod that has lost its shell completely is the a) octopus b) slug c) cuttlefish d) nautilus e. squid 4. The blood of annelids typically flows a) only in dorsal vessels c. only in ventral vessels b) in a closed circulatory system d. in an open circulatory system 5. In most mollusks‚ fertilization a) is external c. is internal b) occurs in hermaphrodites d.
Premium Annelid
Disscusion In this experiment‚ we are required to observe‚ explain‚ identify and recognize the phylum under Kingdom Animalia. The phylum that we need to identify was Phylum Porifera‚ Phylum Cnidaria‚ Phylum platyhelminthes‚ Phylum Nematoda‚ Phylum Rotifera‚ Phylum Mollusca‚ Phylum Arthropoda‚ Phylum Echinodermata‚ Subphylum Cephalochordata and Subphylum Vertebrata (Fishes). Phylum Porifera The characteristic of members of Phylum porifera include asymmetrical or radial symmetry body plan. There
Premium Nervous system Cnidaria Annelid
Interesting Facts-Annelida • The most recognized image of • feeding arms‚ and mouth of a jellyfish. • There are only about 200 species of Vocabulary- Cnidaria • Aboral end: The opposite side of the oral end. • Anthozoa: The class of the Coelenterata which includes the corals and sea anemones. • Cnidocytes: unique cells that function in defense and the capture of prey. • Cubozoa: Any of Cnidaria Animals in FIGURES- Cnidaria
Premium Annelid
Zoo plankton -Feed on phytoplankton -Weak swimmers Which includes: 1. Copepods 2.Krill 3.Phylum Cnidaria 4.Phylum Ctenphora 5.Salps 6.Larvaceans 7.Phylum Chaetognatha 8.Mollusks and Annelids Copepods -Phylum Arthropoda -Subphylum Crustacea -Exoskeleton that is molted -Segmentation -Jointed appendages -One of most dominant groups of zooplankton -Active filter feeders -The head has a single central eye and two antennae. Krill -Phylum Arthropoda -Subphylum Crustacea
Premium Annelid Plankton Animal
¡ Bilaterally symmetrical ¡ Possesses at least one pair of chitinous bristles called setae or chaetae ¡ Exhbits metamerism ¡ Epidermis secretes a protective cuticle that remains permeable to both water and gases; thus‚ annelids are restricted to moist environment ¡ Septa separates the annelid segments from each other ¡ All are very similar in appearance and strucuture ¡ Both internally and externally PHYLUM ANNELIDA ¡ Doesn’t possess skeletal material ¡ Lives in tubes‚ muds‚ and sand grains
Premium Annelid