Man-of-War The Portuguese man-of-war if a member of the Kingdom Animalia‚ phylum Cnidaria(1)‚ class Hydrozoa‚ order Siphonophra‚ the genus Physalia‚ and the species Physalia(2). The man-of-war is not an actual jellyfish‚ but a Siphonophor. Also the man-of-war is not a single organism. It is made up of many different organisms that work together. These organisms are called polyps. The Portuguese man-of-war is usually found in the Northern Atlantic gulf stream. It can also be found in the tropical
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AP Biology Reading Guide Fred and Theresa Holtzclaw Chapter 33: Invertebrates Name _______________________ Period ___________ Chapter 33: Invertebrates Chapters 31‚ 32‚ and 33 should be considered as a single unit‚ and you should try to put all of them together in a single conceptual framework. Due to the scope of our course‚ you are likely to see more general questions on individual phyla. For each of the phyla that we highlight in the questions that follow‚ try to know the characters that are
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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
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that have inhabited our planet for at least 500 million years who spend a portion of their lives as plant-like polyps before transforming into some of the greatest ocean predators‚ all without having any brain‚ heart‚ backbone‚ eyes‚ ears or teeth. Cnidaria‚ otherwise known as jellyfish‚ are gelatinous animals found at all depths within all oceans around the world‚ and are some of the oldest animals evolutionarily speaking. Jellyfish are rather simplistic‚ anatomically speaking. They are diploblastic
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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
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The cells and tissues surround a water filled space but there is no body cavity. Has no nervous system Has a larval stage. Are all filter feeders. Sponges are among the oldest animals‚ being discovered about 500 million years ago! Phylum Cnidaria JellyFish  Basic Characteristics Live in both fresh water‚ and salt water. Radial Symmetry; typically quadramous Diploblastic (two germ layers during development) – ectoderm and endoderm Adult body with an outer cellular layer (Epidermis
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spicules ii. Constructed and maintained by amoebocytes e. Reproduction i. Sexual: most are hermaphrodites ii. Asexual: regeneration RADIATA Introduction Phylum Cnidaria: Cnidarians have radial symmetry‚ a gastrovascular cavity‚ and cnidocytes 2. List the characteristics of the phylum Cnidaria that distinguish it from the other animal phyla. a. Have muscle and nerve tissue‚ lack well-developed mesoderm b. Radially symmetrical; mouth but no anus c. Carnivores
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tissue and symmetry Ex. Porifera (Sponges) Eumetazoa (true animal) Animals that have definite shape and symmetry and have organs All bilateria animals are triploblasty Can be protostomes or deuterostomes (depends on blastopore development) Only Cnidaria (sponges) and Ctenophora are diploblasty 32.4 The roots of the Animal Tree of Life 32.4.1 Metazoans appear to have evolved from colonial protists Evidence: Multicellular Colonial flagellated hypothesis 32.4.2 Molecular analysis may explain
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Example: Leucosolenia (Sponges) Unique characteristic of sponges: I- In the mesophyl are the spicule(sharp‚ calcium carbonate or silica structures) which form the skeletal fibres of many sponges Phylum Coelentrata/Cnidaria Unique characteristic of Coelentrata/Cnidaria: I- Mostly marine except few freshwater forms II- Radial symmetrical‚ true tissues but lack organs III- Simple nerve net in body wall IV- Sexual and asexual reproduction V- Life cycle including separate
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The two phyla Cnidaria and Ctentophora makeup the radiate animals. Most radiates have tentacles or oral extensible projections around the oral end that are armed with cells that may function in defense and capture prey. The cells found within the tentacles are structurally and functionally unique to each phylum‚ such as the cindocytes in Cnidarians and colloblasts in Ctenophores. Cnidarians capture prey with special stinging cells called cindocytes. These cells are found throughout the epidermis
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