Annelid

    Page 1 of 2 - About 13 Essays
  • Porifer Animalia

    (class) Chromadorea (class) Kingdom: Animalia Phylum: Annelida Classification information for Annelids: Annelids, known for their features of segmentation, also called metamerism, tend to be inhabitants of the sea, most freshwater habitats, and terrestrial environments (Myers, 2001d). Annelids, besides leeches, not only have chitinous hairlike structures called setae projecting from their cuticles that define them, but also, a full, well-developed true coelom (Myers, 2001d). This allows hydrostatic pressure be maintained against their segments which not only maintains their overall body righty, but also allows muscle contractions to bend the body without collapsing it (Myers, 2001d). As mentioned in the former, their well-developed coelom is complete; thus, allowing their organs to be fully compacted with not only an arranged circulatory system, in addition to a digestive system, but a full nervous system as well (Myers, 2001d). The major groups of annelids include: earthworms, leeches, and polychaete worms (Myers, 2001d). Polychaeta (class) Clitellata (class)…

    Words: 1323 - Pages: 6
  • Animalia Research Paper

    embryonic stage made of a hollow ball of cells, the blastula. There are over 1.5 million living animal species, of which around 1 million are insects. The study of animals is called zoology. Animals were traditionally divided by body plan into vertebrates, those with a spine, and invertebrates, all the rest. In modern classification, most animals are in the Bilateria, a clade whose members are characterized by a bilaterally symmetric body plan. The Bilateria include the protostomes and the…

    Words: 1354 - Pages: 6
  • Reflection Of Reflections On Teaching And Learning

    Reflections on Teaching & Learning: Your Lesson Evaluation should include EACH of the following: Decisions about the plan • Why did you choose to use these specific teaching strategies? I felt that an inquiry-based strategy would be beneficial to the students, because I wanted to allow them to make their own hypothesis and then conduct experiments making their own observations before providing them with information and details. This allowed them to make personal connections with what they…

    Words: 1682 - Pages: 7
  • Earthworm Research Paper

    3. The earthworm has a segmented body with a mouth at the anterior end and an anus at the posterior end. It has a smooth, purple dorsal side and a rough, yellow ventral side with setae. Two sperm grooves run along the body from segment 15 (where sperm ducts are also located) to the clitellum, which looks like a tube surrounding the earthworm’s body and is closer to the anterior end. 4. The setae are likely on the outside of the body for more effective locomotion. They allow the earthworm to…

    Words: 501 - Pages: 3
  • Mealworm Research Paper

    Mealworms, Tenebrio molitor Introduction: Mealworms are the worm-like larval form of a very dark brown beetle, Tenebrio molitor, a species which belongs to the genus Tenebrio and the family Tenebrionidae. The animal has other common names such as “Yellow mealworm”, “Mealworm beetle”, “Darkling beetle”, and “Darkening beetle”. The larval form is the usable form in pet’s keepers. Distribution and habitats: Mealworms are found throughout most of the world in temperate regions, but primarily in the…

    Words: 921 - Pages: 4
  • Flatworm Essay

    contained in the pseudocoelom operate as a hydrostatic skeleton, or an exoskeleton that maintains its form due to the pressure of fluid inside the skeleton. Roundworms have two nerve cords that transmit impulses in the roundworm. Also, they are able to reproduce sexually by internal fertilization. Earthworms and other segmented worms make up the Annelida phylum. Annelids are divided into a number of segments that are divided by septa, or internal walls. Many of the segments are similar to one…

    Words: 579 - Pages: 3
  • Importance Of Locomotion In Animalia

    Phylum Nematoda, Unlike Platyhelminthes the muscles of nematodes differ in that they only developed a layer of longitudinal muscle. These animals are pseudocoelomates, which means they have a body cavity between their mesoderm and endoderm layers, it is because of this development that, the movements of the gut (peristalsis) are quite separate from the movements of muscles that propel the body forward. Nematodes have long muscles that lie underneath the epidermis, the muscles are all aligned…

    Words: 824 - Pages: 4
  • How Do Diets Affect Earthworms

    Earthworm Experiment Question/Purpose: Do different diets affect earthworms and the soil they enrich? Hypothesis: The diet that is best for earthworms is one made up of soil and grass, because earthworms are more likely to have grass in their environment outside the classroom. Introduction: Earthworms are defined dictionary.com is “any one of numerous annelid worms that burrow in soil and feed on soil nutrients and decaying organic matter.” However, what if the “soil nutrients” were changed…

    Words: 621 - Pages: 3
  • Essay On Coelomates

    both land and water. The Echinodermata is both radial and bilateral symmetric. It is bilaterally symmetric as a larvae but when it turns into an adult it becomes radial. On the phylogenetic tree, Porifera and Cnidaria are the first to separate due to the fact that they are radial symmetry, the other phyla are all bilateral. Porifera is sessile and has collar cells. Cnidaria is diploblastic and has mesoglea. Platyhelminthes, Nematoda, and Rotifera are separated because of coelomation.…

    Words: 506 - Pages: 3
  • Ibuprofen Synthesis Essay

    Figure 2. Possible sources of error that could have influenced our results include that maybe there was variability in the actual counting of pulsations of the worms among our group members. Movement of the worms while calculating heart rate could have also influenced our values. The Lumbriculus variegatus do possess a key element that was necessary for NSAIDs to have an effect on the worm. NSAIDs work by blocking COX enzymes in an organism. Without COX enzymes, the NSAID would not be able to…

    Words: 839 - Pages: 4
  • Previous
    Page 1 2

Related Topics:

Popular Topics: