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Cnidarians are soft-bodied animals with stinging cells that have two main forms in their life cycle, polyp and medusa. They have a gastrovascular cavity for digestion where food is pulled inside and broken down outside cells. Major groups include jellyfish, hydras, sea anemones, and corals, which all move using hydrostatic skeletons and muscles.
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cnidarians.pptx
Cnidarians are a phylum of aquatic animals that include jellyfish, corals, sea anemones. They have radial symmetry and tentacles surrounding a central mouth. Their bodies are made of two layers and they use stinging cells called cnidocytes for defense and hunting. Cnidarians reproduce both sexually and asexually. They play important ecological roles like building coral reefs but some species' stings can harm humans.
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- Cnidaria is a phylum of radially symmetric, aquatic animals found exclusively in marine and freshwater environments. They are distinguished by having stinging cells called cnidocytes that contain nematocysts.
- Cnidarians exhibit two basic body forms - polyps, which are typically sessile, and medusae or jellyfish, which are mobile. Many species alternate between these two forms during their life cycle.
- The phylum is divided into four classes - Hydrozoa, Scyphozoa, Cubozoa, and Anthozoa. Hydrozoans and scyphozoans have both polyp and medusa stages while anthozoans are exclusively polyp forms. Cor
Ivo boby cnideria 10 7
(1) Sponges are simple aquatic animals that live in water and have pores that intake and output water. They come in different shapes and have skeletons made of either silicon or lime. Sponges reproduce both sexually and asexually.
(2) Cnidarians are a phylum of aquatic animals that include jellyfish, corals, sea anemones and hydra. They have radial symmetry and live in bodies of water. Cnidarians reproduce both sexually, going through polyp and medusa stages, and asexually by splitting their bodies. They feed through passive predation using stinging cells.
Group No 4-WPS Office.pptx
This document provides information on sponges and cnidarians. It discusses the distinguishing features, basic body structures, life functions, habitats, and evolutionary histories of these early animal phyla. Sponges are multicellular organisms that live in water and have pores but lack nervous, digestive or circulatory systems. They reproduce sexually or through budding. Cnidarians are more complex than sponges and have stinging cells called cnidocytes. They have two main cell layers and feed through predation or symbiosis. Their fossil record extends back over 500 million years.
Cnidarians Alexis
Cnidarians are carnivorous animals with stinging tentacles around their mouths that have two life cycle stages - a polyp with arm-like tentacles and a motile medusa with a bell-shaped body. They capture prey with their stinging cells, pull it into their gastrovascular cavity for digestion, and transport nutrients through diffusion. Cnidarians detect stimuli through a nerve net and move using circular and longitudinal muscles that control water in their gastrovascular cavity. They reproduce both asexually and sexually through external fertilization.
11.08__Mollusks.pdf
Mollusks are a diverse phylum of invertebrates that live in both aquatic and terrestrial habitats. They have a hard outer shell, a mantle that secretes the shell, and a radula for feeding. The three main classes of mollusks are gastropods, bivalves, and cephalopods. Gastropods crawl on a foot, bivalves are sessile filter feeders attached to surfaces, and cephalopods are active carnivorous swimmers with arms and tentacles.
Bivalvia
This document summarizes information about bivalves, including:
- Their method of movement by drifting with currents and lack of legs or tails
- Their open circulatory system and obtaining of nutrients from lower organisms
- Their sexual reproduction and separate sexes that come together periodically
- Their shell structure that remains after placing in stimuli while internal organs dissolve
- Their gills beside the heart inside their protective shell
- Their role as primary consumers in the food chain due to their acidic environment in oceans
- Their cold-blooded temperature regulation and hard shell structure with mantle tissue muscles
Group #4[Evolution].pptx
This document provides an overview of sponges and cnidarians. It discusses their distinguishing features, basic body structures, and evolutionary histories. Sponges are multicellular organisms that lack tissues and have pores to intake and output water. Cnidarians are diploblastic animals with stinging cells that have two main layers and feed through predation or symbiosis. Both groups have a long fossil record dating back hundreds of millions of years.
Life Science Chapter 14
Presentatiion to assist with teaching about mollusks, arthropods, spiders, earthworms, echinoderms. slugs and more.
This is not my own creation, but I really liked it. I added several videos which probably will not show up through slide share. The videos were my own addition.
Invertebrates
This document summarizes the six major groups of invertebrates:
- Poriferans (sponges) lack symmetry and skeletons, instead using protein fibers and calcium carbonate to support their soft bodies.
- Cnidarians (jellyfish, anemones, corals) are soft-bodied with a central cavity and take cylindrical, vase-shaped, or umbrella shapes.
- Echinoderms (sea stars, sea urchins) have spiny skin, radial symmetry, and use tube feet and water vascular systems.
- Mollusks (clams, snails, octopuses) are often soft-bodied but sometimes have hard shells for protection
13. radiate animals
The document summarizes key information about radiate animals in the phyla Cnidaria and Ctenophora. It describes their radial symmetry, diploblastic structure, and characteristics like cnidocytes. It provides details on the classes within Cnidaria, including Hydrozoa, Scyphozoa, Cubozoa, and Anthozoa. It also discusses coral reef ecology and threats to corals from factors such as warming oceans, acidification, and pollution.
10 4 all handouts animal diversity 2010 jewett edit
The document summarizes key information about sponges and cnidarians. It discusses their:
1) Simple body structures and lack of tissues in sponges. Cnidarians have a gastrovascular cavity and three body layers.
2) Radial symmetry in cnidarians and lack of symmetry in sponges.
3) Close evolutionary relationship and how cnidarians were early ancestors of animals with nerves and muscles.
4) Filter feeding in sponges and carnivorous feeding using nematocysts in cnidarians like jellyfish and hydra.
Phylum Cnidaria
1. The document provides an overview of the phylum Cnidaria, which includes jellyfish, corals, and hydroids.
2. Cnidarians are radially or biradially symmetrical and have stinging cells called nematocysts. They exhibit a diploblastic body plan with two tissue layers separated by a gelatinous mesoglea.
3. Many cnidarians alternate between a sessile polyp stage and a motile medusa stage. Reproduction involves external fertilization producing a planula larva.
Orteza edited part 2 animal kingdom 97
This document provides information about different animal phyla and classes. It discusses the characteristics of molluscs like bivalves, gastropods, and cephalopods. It also describes the classes within the phylum Echinodermata, including sea stars, sea urchins, sea cucumbers, and feather stars. Additionally, it summarizes the characteristics of arthropods and highlights examples like insects, spiders, and crustaceans. Finally, it outlines the five classes that make up the phylum Chordata: fish, amphibians, reptiles, birds, and mammals.
Animalia
The document discusses the Search for Extraterrestrial Intelligence (SETI) project which searches outer space for signs of life. It notes that the US spends millions of dollars annually on SETI to search for aliens. It then asks if readers believe in the possibility of aliens and asserts that there may be aliens on other planets in the universe given the vast number of solar systems.
Cnidaria gen features -2012
- Cnidarians are a phylum of mostly marine animals that include jellyfish, corals, sea anemones. They have radial symmetry and two basic body forms - polyps and medusae.
- They have stinging cells called cnidocytes that help capture prey. Their nervous system is a nerve net. They reproduce sexually and asexually. Larvae are called planulae.
- Anthozoans like corals and sea anemones have a tubular body with a mouth and oral disc surrounded by tentacles. Their pharynx leads into the coelenteron.
Vertebrates vs invertebrates
Vertebrates are animals that have a backbone, while invertebrates do not. Vertebrates are classified as chordates and include fish, mammals, reptiles, amphibians, and birds. Fish are categorized into cartilaginous, ray-finned, and lobe-finned. Mammals include monotremes, marsupials, and placental mammals. Reptiles are ectothermic and include snakes, lizards, crocodiles, alligators, and turtles. Amphibians transform from aquatic larvae to terrestrial adults. Birds are covered in feathers and can fly. Invertebrates lack backbones and include sponges, cnidarians, flatworms
today final (2) - Copy.pptx of echinoderms
The document discusses the phylum Echinodermata. It describes echinoderms as marine invertebrates with radial symmetry and spiny skin. They have unique structures like a water vascular system and calcareous ossicles. The document outlines their characteristics, taxonomy, diversity with over 7,000 living species, fossil history dating back to the Precambrian, anatomy including their pentaradial symmetry and larval bilateral symmetry, and physiology such as their mesodermal skeleton and water vascular system.
Sponges and cnidarians by Aadithya suresh , Aditya shinde , bennet , mishita ...
This document summarizes sponges and cnidarians. Sponges are aquatic animals that do not move and have pores to circulate water through their jelly-like bodies. Cnidarians are also aquatic animals with a tubular body and tentacles that they use to hunt. Examples of cnidarians include corals and jellyfish.
Similar to chordate (20)
10 4 all handouts animal diversity 2010 jewett edit
10 4 all handouts animal diversity 2010 jewett edit
Sponges and cnidarians by Aadithya suresh , Aditya shinde , bennet , mishita ...
Sponges and cnidarians by Aadithya suresh , Aditya shinde , bennet , mishita ...
More from Mr. Kyle Collins
Science fungi p.point
The document discusses the classification of fungi in the kingdom, describing how they are classified based on their structure and reproduction methods. It identifies some common types of fungi, including molds, zygomycetes, sac fungi known for their reproductive sacs, club fungi named for their club-shaped reproductive structures, and imperfect fungi whose reproductive phases are not observable. It provides links to additional information and sources.
Amazing Sperm Plants
Flowering plants first appeared around 135 million years ago and have since diversified greatly. They have flowers that attract pollinators like bees, helping the plants reproduce. There are over 500 ways to classify flowers based on their many variations from crossed genes between species. Angiosperms can be divided into two main classes - monocots and dicots - based on their seeds and seedling structure. Monocots have one seed and dicots have two. Angiosperms can also be classified as woody, herbaceous, annual, perennial, or biennial based on characteristics like their stem structure and lifespan.
Chordates
Seedless vascular plants reproduce without seeds and have structures that transport water and nutrients throughout the plant. They include club mosses, horsetails and ferns, which have roots, leaves and stems. The dominant stage in a fern's life cycle is the sporophyte, which is diploid.
Leaves, Roots, And Stems
Sponges are multicellular animals that live attached to surfaces in marine environments. They filter feed by drawing water through their bodies to absorb nutrients while releasing waste. Sponges can reproduce both sexually through internal fertilization or asexually. There are over 5,000 known sponge species. Sponges were some of the earliest forms of animal life on Earth.
Powerpoint
Archaebacteria differ from eubacteria in that they lack peptidoglycan and have distinct membrane lipids, and their DNA sequences are more similar to eukaryotes. Archaebacteria thrive in harsh environments like digestive tracts, salty lakes, and oxygen-depleted mud. Prokaryotes use flagella for movement and undergo cellular respiration for energy. They can also exchange genes between cells through conjugation. Prokaryotes reproduce through binary fission, doubling in size before dividing into two daughter cells.
Mammals
Mammals are classified into several groups based on how their young develop. Marsupials carry their young in pouches after they are born. Monotremes lay eggs that hatch outside the body. Placental mammals exchange nutrients between the mother and embryo through the placenta. There are many types of placental mammals including those that live on land or in water, fly, have hooves or trunks. Convergent evolution has led to similar structures developing in different mammals living in similar climates.
Fishes
This document discusses the characteristics, evolution, feeding, and respiration of fish. It notes that fish generally have paired fins, scales, and gills. Originally fish were armored and jawless, but in the Devonian Period fish evolved paired fins and jaws. Fish can feed in different ways depending on their environment, including herbivores, carnivores, parasites, filter feeders, and detritus feeders. Gas exchange occurs through gill filaments and blood circulates through fish in one loop.
Roots, Stems, and Leaves Power Point
Viruses are particles that can only reproduce by infecting living cells and contain nucleic acid, protein, and sometimes lipids. They do not have fossils but may have impacted life's history. Viruses use capsids made of protein to enter host cells. Some viruses infect bacteria while others contain RNA as their genetic material or are made solely of protein. Viral infections can be lytic, causing the cell to burst, or lysogenic where the virus embeds its DNA into the host cell DNA. Many human diseases are caused by viruses such as polio, measles, AIDS, influenza, and rabies.
Amphibians
Amphibians are vertebrates that typically live both on land and in water. They evolved adaptations like stronger bones and limbs that allowed them to move on land while still having lungs and gills. There are three main groups of amphibians - salamanders, frogs and toads, and caecilians. Amphibians have defenses like poisonous skin secretions and camouflage to protect themselves from predators.
Spring Project Power Point (Deegan)
Birds have wings and feathers that allow them to fly. They maintain a constant internal body temperature and have specialized features like bills and digestive systems that help them survive. There are many groups of birds including songbirds, raptors, and flightless birds. Birds play important ecological roles like seed dispersal and pest control. They have been around for over 150 million years.
Bio Powerpoint
Animallike Protists are a diverse group of eukaryotic microorganisms that include zooflagellates, sarcodines, ciliates, and sporozoans. Some animallike protists cause serious diseases in humans and animals, such as malaria which is caused by a eukaryotic protist and transmitted by mosquitoes, and African sleeping sickness which is caused by protozoans and transmitted by tsetse flies. Animallike protists exhibit a variety of traits including being single-celled or colonial, autotrophic or heterotrophic, and forming symbiotic relationships with other organisms.
Angiosperms
Flowers evolved in angiosperms as a way to attract animals to transport pollen between plants. Flowers contain ovaries that develop into fruits which help disperse seeds. Angiosperms are divided into monocots and dicots based on the number of seed leaves, with monocots having one and dicots having two. Biennials complete their lifecycle over two years, annuals do so in one growing season, and perennials live for more than two years, with most having woody stems.
22-4 Seed Plants
Seed plants reproduce using seeds and can be divided into two groups: gymnosperms and angiosperms. Gymnosperms bear their seeds directly on cones while angiosperms bear their seeds within flowers. Both use adaptations like pollen, pollination, and protective seed coats to reproduce without needing water. Common gymnosperms include conifers like pine trees and cycads, while flowering plants are angiosperms like many trees, shrubs, and herbaceous plants. Seed plants evolved adaptations allowing reproduction on land as the climate changed over millions of years.
Viruses
Viruses are particles that can only reproduce by infecting living cells. They enter cells and use the cell's machinery to produce more viruses. There are two main types of viral infection - lytic infections cause the cell to burst and release new viruses, while lysogenic infections allow the virus to lay dormant inside the cell. Viruses can cause many serious diseases in humans and animals like polio, cancer, and mad cow disease. They are not considered alive since they cannot reproduce outside of a host cell.
Amphibians
Amphibians are vertebrates that live both on land and in water, starting their lives as aquatic larvae and transitioning to terrestrial adults. They use camouflage, toxins, and bright colors to protect themselves from predators. As tadpoles, they feed using filters, and as adults they eat just about anything they can catch and swallow. Their lungs, tympanic membranes, and nictitating membranes allow them to survive on land and in water. The three main groups are salamanders, frogs and toads, and caecilians, though amphibian populations are declining globally.
Fishes
The document discusses the evolution of fishes. It describes the first fishes as jawless creatures that lived 510 million years ago during the Cambrian period. Fishes kept this armored jawless body plan for 100 million years. During the Ordovician and Silurian periods 505 to 410 million years ago, fishes underwent major changes and diversification. Jawless fishes from this time eventually went extinct by the end of the Devonian period 360 million years ago.
M O L L U S K S
The document classifies fungi into four main phyla: Zygomycota (common molds), Ascomycota (sac fungi), Basidiomycota (club fungi), and Deuteromycota (imperfect fungi). It describes key characteristics of each phylum, such as how sac fungi form reproductive structures called asci that contain spores, while club fungi form club-shaped basidia. The document also notes that imperfect fungi lack a sexual phase and includes the genus Penicillium that produces the antibiotic penicillin.
More from Mr. Kyle Collins (17)
chordate
- 1. Cnidarians Samantha Ferroni Biology 4 March 25,2010
- 2. What Are Cnidarians? A Cnidarian is a soft-bodied animal with stinging cells. Cnidarians are the simplest animals to have body symmetry and specialized tissues.
- 3. Body Plan Most cnidarians has 2 different looking cycles of life: Polyp Medusa
- 4. Feeding Cnidarians pull their prey into it’s gastro- vascular cavity. The gastrovascular cavity is a digestive chamber with one opening. Digestion takes place outside the cells!
- 5. Groups of Cnidarians Cnidarians include jellyfish, hydras, sea anemones and corals. All Cnidarians move differently, but they all have hydrostatic skeletons. It allows the muscles to move together so the cnidarians can glide through water.
- 6. Bibliography "Common Jellyfish - Aurelia Aurita - Video 09d - ARKive." ARKive - Discover the World's Most Endangered Species. Web. 31 Mar. 2010. <http://www.arkive.org/common-jellyfish/aurelia- aurita/video-09d.html>. "Gastrovascular Cavity: Hydra." Washington State University - Pullman, Washington. Web. 31 Mar. 2010. <http://www.wsu.edu/~rlee/biol103/lect05/sld036.htm>. "Hawaii Health and Safety Guide." Hawaii Vacation Rentals - HawaiiGaga.com. Web. 31 Mar. 2010. <http://www.hawaiigaga.com/HealthGuide.aspx>. "Introduction to Animals, Sponges, Cnidarians." Clinton Community College. Web. 31 Mar. 2010. <http://faculty.clintoncc.suny.edu/faculty/michael.gregory/files/bio%20102/bio%20102%20lecture s/Animal%20Diversity/Lower%20Invertebrates/sponges.htm>. Miller, Kenneth R., and Joseph S. Levine. Prentice Hall Biology. Upper Saddle River, N.J.: Prentice Hall, 2002. Print. "Popular Entertainment Stories - Mixx." Mixx - Latest News and Top Videos and Photos from around the Web. Web. 31 Mar. 2010. <http://www.mixx.com/entertainment>. "A Word About Polyps." The Fact Box. Web. 31 Mar. 2010. <http://thefactbox.blogspot.com/2007/07/word-about-polyps.html>. "Purple Death | Palythoa | Rare Zoanthids." Zoanthids | Rare Zoanthids | Zoa Frags | Rare Palythoa | Zoanthus | Zoas. Web. 31 Mar. 2010. http://www.rarezoanthids.com/purple-death/