Preview

The Cnidarian's Stages Of Life

Good Essays
Open Document
Open Document
441 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
The Cnidarian's Stages Of Life
The Cnidarian is known for its life cycle. There are two stages of life involved called the Polyp and Medusae. The polyp is the plant life of the sea that is usually tubular and attached to stationary objects within the water. The tentacles on the polyp are usually pointed upward and flared out to atract and pull in prey. The Medusae is the jellyfish looking creature. They float around in the water and look like umbrellas. The mouths are located on the Concave or the inside of the creature with tentacles surrounding the creature. This type of creature actually has many types of animals within its phylum. The phylum of the creature has a few different creatures and numerous types of jellyfish. To focus upon the creature I would like to focus on three types: Hydrozoans, Jellyfish, and Sea Anemones.

The Hydrozoa is a subgroup of the Cnidarian that constantly gets confused for the Jellyfish. “ The Hydrozoa has over 3700 types in this subgroup and is distinguished by its variety of life cycles, growth forms, and specialized structures” (Hammond, 2014). As a Polyp and the Medusa the Hydrozoa looks and acts just like a jellyfish and its stages of life. The only difference between the Hydrozoa and …show more content…
They come in many different species, sizes, and colors. Out of all the subgroups in the Cnidarian phylum; the jellyfish is the most diverse of all the species such as Scyphozoa: The brightly colored and bigger jellyfish that people think about when they hear jellyfish, Cubozoa:They are the Box Jellyfish that contain the most poison, and have the most developed nervous system, and the Staurozoa: the least known jellyfish that actually do not float in the water, but attach themselves to rocks and other plants to survive and feed. The jellyfish can come from 1 cm to 6 feet wide. The jellyfish also is the creature that tends to use the “nerve net” more than the other
Continue Reading
View Writing Issues

You May Also Find These Documents Helpful

  • Good Essays

    Biology Ch 32/33 Worksheet
    • 680 Words
    • 3 Pages

    Biology Ch 32/33 Worksheet

    8. What is the other form of a jellyfish pictured here called and how is it different from the polyp form?…

    • 680 Words
    • 3 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    Bio 20 Final Review
    • 317 Words
    • 2 Pages

    Bio 20 Final Review

    a Bio 20 Final Review SA Phylum | Example | Characteristics | /36 | | | Porifera | Glass Sponge | No true tissue, use collar cells No movement as adult | Cnidaria | Jellyfish | Polyp or Medusa Nerve net | Platyhelminthes | Fluke | Nerve cells that act as a brain Live in bodies | Nematoda | Hookworm | Taper at both ends False coelom, parasitic | Annelida | Earthworm or Leech | Segmentation Hydro skeleton | Mollusca | Octopus or Clam | Mantle, Gills, True coelom Muscular foot, Adductor | Arthropoda | Lobster, Spider or Ants | Jointed appendages Molting , Metamorphosis | Echnodermata | Sea star or sand dollar | Spiny skin Regenerate lost/damaged parts | Chordata | Whale or Human | Notochord/backbone Tail, Dorsal nerve chord | Animal Phylum Class | Example | Characteristics | //28 | | | Agnatha | Lamprey | No JawsParasitic | Chondrichthyes | Hammerhead shark | No swim bladderPelvic fins and gill slits |…

    • 317 Words
    • 2 Pages
    Satisfactory Essays
    Read More
  • Good Essays

    Week 7 Checkpoint: Physiology Assignment
    • 527 Words
    • 2 Pages

    Week 7 Checkpoint: Physiology Assignment

    I chose to look up a diagram on a sea dwelling organism known as a Jellyfish. Jellyfish have many different forms and are often characterized in different groups. One jellyfish that stood out to me was the Aurelia or also known as the Moon Jellyfish, which is like the basic jellyfish that I’ve always seen in pictures and books growing up. Jellyfish are said to be very effective predators, as one point in the time they were considered to be at the top of food chain. Being effective predators makes them physically fit to be in any environment that they travel to. Even though most would say that jellyfish are horrible swimmers, they are actually in fact many are very strong precise swimmers. Jellyfish can swim horizontally and vertically by using contraction against their bell to expel jets of water to propel them. One drawback of them not being stronger swimmers like larger fish is that they often get caught in sea currents and get stuck in them as they go pass. The bell that propels them has a thick ring of strong muscle, called the coronal muscle. That muscle generates most of the power and energy used by a jellyfish. Now hanging from their subumbrellar is a projection called the manubrim which has the mouth its terminus. The mouth is often surrounded by oral arms normally just for but can sometimes be a multiple of four such as eight, depending on the type of species. Jellyfish don’t have a brain but they do bear a sophisticated computer which tends to all its needs and functions throughout the jellyfishes body. Though not as complex as a normal brain, it does suit the jellyfish well. Now on the edge of the underside of the jellyfish’s bell are its tentacles. The tentacles too can range in different numbers and sometimes some have thousands. These tentacles can be used to feed it, but also are use as it self defense mechanism to protect and also to hunt. The body and tentacles of a jellyfish can discharge…

    • 527 Words
    • 2 Pages
    Good Essays
    Read More
  • Good Essays

    Pacific Sea Nettle Research Paper
    • 880 Words
    • 4 Pages

    Pacific Sea Nettle Research Paper

    Chrysaora fuscescens is the scientific name of the Pacific sea nettle. They belongs to phylum Cnidaria. They are native to the San Francisco Bay, and, as the name suggests, these jellyfish live in the Pacific Ocean. They thrive along the coasts of Oregon and California. They can also be found farther north in Japan and Alaska, although they are not as common in these northern waters. On occasions, they have been spotted as far south as the west coast of Mexico. During autumn and winter, Pacific sea nettles inhabit bays and coastal areas. During these colder months, they remain close to the surface of the ocean. In spring and summer they move in large groups to deeper waters farther off the coast. The Pacific sea nettle thrives in warmer, shallow waters. Therefore, they are often found in large groups off the coast, or stranded on beaches.…

    • 880 Words
    • 4 Pages
    Good Essays
    Read More
  • Good Essays

    Crayfish Research Paper
    • 618 Words
    • 3 Pages

    Crayfish Research Paper

    The Crayfish has a joined head, thorax, and a segmented body. They range in colors for yellow, green, red, and brown. Crayfish are around 3 inches long.…

    • 618 Words
    • 3 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    Study Guide 3
    • 313 Words
    • 2 Pages

    Study Guide 3

    Active movement 5. Sexual reproduction 6. Embryo development(zygote>morula>blastula>blastopore/gastrula) Parazoans VS Eumetazoans. Eumetazoans as triploblastic organisms. Eumetazoan 4 key body plans 1.…

    • 313 Words
    • 2 Pages
    Satisfactory Essays
    Read More
  • Good Essays

    Crinoids Research Paper
    • 602 Words
    • 3 Pages

    Crinoids Research Paper

    Crinoids possess an endoskeleton composed of calcareous plates and covered by a thin epidermis. Living, shallow water forms are extensively pigmented. Each plate is a single, very porous calcite crystal. Unfused plates are held together with ligaments or muscles.…

    • 602 Words
    • 3 Pages
    Good Essays
    Read More
  • Good Essays

    Why Do Comb Jelly Exist
    • 763 Words
    • 4 Pages

    Why Do Comb Jelly Exist

    Moving on to This first animal fossil feeding regiment and habitat. Ctenophores are considered as a carnivorous specie. They consume a variety of planktonic organisms like fish larvae. The amount of food they eat is extremely large and the only way they can do so is by progressively pumping water inside their body cavities. Comb jellies can live in a variety of locations. Some live near the shores other live in deep water, but what ever part of the ocean they are found in the majority of the time the water is warm. They basically prefer a warm environment. 
 When it comes to adaptation this fascinating creature protects itself by producing when touched a colorful light that will scare away their predators, or attract larger predators that can now attack the predator of the comb jelly. But most of the comb jelly’s initial color when untouched is transparent which makes it easier for them to hide from their predators. It is a sort of camouflage.
 Furthermore comb jellies are considered as hermaphroditic which means that they have both the female and male reproductive system. They release on a daily basis an egg and a sperm in the water in hopes that it will…

    • 763 Words
    • 4 Pages
    Good Essays
    Read More
  • Good Essays

    Mantis Shrimp
    • 596 Words
    • 3 Pages

    Mantis Shrimp

    Among the Stomatopda, the largest class Malacostraca, is approximately 40,000 species which includes organisms that are common to everyday such as the crayfish, shrimp, crab, lobster and krill. Malacostraca are characterized by their body structure comprised of many body segments split into the head, thorax, and abdomen. These organisms are abundant in most marine environments from saltwater, freshwater, and terrestrial habitats. From evolutionary history, it is configured the Stomatopoda is the last living subclass of the Hoplocarida that diverged about 400 million years ago during the Devonian period. The Paleostomatopoda and Aeschronectida which are both also Hoplocarids, that lived in the shallow coastal region waters. The Paleostomatopoda have a specialized raptorial appendage that indicated a key connection to the suborder Unipeltata, the crown group of the stomatopoda. In comparison to the suborder Unipeltata, the morphological evidence established support for five major superfamily classification: the Squilloidea, Bathysquilloidea, Lysiosquilloidea, Erthrosquilloidea, and the Gonodactylodidea. On the other hand, the Aeschronectida is different having minimal structural specialization, the Aeshcronectida lacks the raptorial appendage Stomatopoda are known for (Haug…

    • 596 Words
    • 3 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    Lionfish Vs Jellyfish
    • 124 Words
    • 1 Page

    Lionfish Vs Jellyfish

    Lionfish and Jellyfish oh my! In the magazine article Box Jellyfish and newspaper article Venomous Fish for Dinner they state a lot of information about these aquatic dangers. For example, the female lionfish can lay up to 2,000,000 eggs a year, and I thought 100 was a lot. Also, the article in the magazine states that the jellyfish have venom just like a lionfish. Another way these two species are alike are they use their venom for defense.one way they are different is a jellyfish is a toothless invertebrate and a lionfish has spines for injecting venom into its prey not stingers. In the articles Box Jellyfish and Venomous Fish for Dinner talk about two very different types of fish that are also similar.…

    • 124 Words
    • 1 Page
    Satisfactory Essays
    Read More
  • Good Essays

    1. State Three Characteristics That All Animals Have In Common
    • 852 Words
    • 4 Pages

    1. State Three Characteristics That All Animals Have In Common

    8. What two body forms are found in cnidarians? Explain how they function in the life cycle of various types of cnidarians. Which one is the primary stage in jelly fish? Polypoid and medusoid. Polypoid- one side faces up while the other is connected to others of same species. Medusoid- upside down with mouth down. Medusoid.…

    • 852 Words
    • 4 Pages
    Good Essays
    Read More
  • Good Essays

    Ecological Succession Lab
    • 736 Words
    • 3 Pages

    Ecological Succession Lab

    We identified the eubranchipus, a organism with similar characteristics to one of a shrimp. Another name for it would be the fairy shrimp. During this observation, only two eubranchipus were identified. We did not have as many eubranchipus as the other groups but we were able to put one under the microscope. This organism has very fast movement and many legs. Another observation we made was that they swim upside down instead of right side up. Bothe of he fairy shrimps were translucent. The colors of them are determined by the food supply of their environment. These organisms started off as dried out eggs but as soon was we added tap water, it made food sources available in order to survive , therefore allowing the eggs to hatch. On the fifth observation, one of our eubranchipus died as another one grew bigger. The surviving shrimp started off as being 0.8 cm and increased to 1.2 cm. This is probably because of the lack of resources and competition - survival of the fittest. Less protist of the same size were found and the water was more still due to the limited organisms living in it. The population of protists are decreasing because it is the food source of the eubranchipus (also cynobacteria). Again, this is because of the existence of a food…

    • 736 Words
    • 3 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    Bulshitt
    • 270 Words
    • 2 Pages

    Bulshitt

    8. Others say the creature may be a type of seal, salamander, giant eel, or marine slug.…

    • 270 Words
    • 2 Pages
    Satisfactory Essays
    Read More
  • Good Essays

    Coral Reef Structure
    • 1471 Words
    • 6 Pages

    Coral Reef Structure

    Coral reefs are communities to the sea and home to many living creatures and different types of organisms, as well as about one-fourth of the oceans population. Coral reefs are made up of animals called polyps that will remain in one place, acting as the main structure of the reef itself, these animals have a hard almost skeleton like structure. Scientists who study coral reefs have categorized them into three different types of reefs; Barrier reefs, Atolls, and Fringing reefs. Coral reefs are put into these categories based on their size, shaped and close proximity to land. Although corals are grouped together, "An individual coral is known as a polyp, a very small and simple organism consisting mostly of a stomach topped by a tentacle-bearing…

    • 1471 Words
    • 6 Pages
    Good Essays
    Read More
  • Good Essays

    Chapter Summary: Sex Drugs And Sea Slime
    • 1001 Words
    • 5 Pages

    Chapter Summary: Sex Drugs And Sea Slime

    They can live broadly throughout the ocean on the sea floor from shallow to deep and can live in virtually all terrains: mua, sana, rock, and coral reefs. They resemble the commonly known garden cucumber, as they’re tube-shaped and can be tan, green, black, although they can also be bright blue, purple, or red. The sea cucumber uses its tube feet to slowly transport itself, with a hydraulic system internally working with water. Some filter feed their food while others use tentacles to catch their prey. Sea cucumbers can also physically change their shape to hide from predators, or look less appetizing. It is also able to spit out its organs to slow down their predators and can regenerate them in 3-5…

    • 1001 Words
    • 5 Pages
    Good Essays
    Read More