These 64 slides will provide your students with solid lessons on the animals found in Phylum Porifera and Phylum Cnidaria. The PowerPoint covers all the topics you would expect on poriferans and cnidarians found in a traditional high school biology textbook, including the members of the phylum, characteristics of each phylum, and the appropriate vocabulary concerning body structures, symmetry, and body systems. A detailed list of the topics covered can be found below.
What is included in this product?
- A 64-Slide PowerPoint Presentation
- 11-page set of lecture notes for the teacher
- 12-page guided notes outline for the student
Topics and concepts covered include:
- Introduction to the Phylum Porifera: List of animals belonging to Phylum Porifera, the appearance of poriferans on Planet Earth, number of species, and locations of habitats.
- What is a Sponge? Definitions of Porifera, invertebrate, and sessile; embryonic development of sponges; reasons why sponges are classified as animals.
- The Body Plan of Poriferans: Asymmetry, germ layers, mesoglea, central cavity.
- External View of Sponge: Students will label the external structures of a sponge, including the osculum, spicules, buds, ostia, and base. Definitions and functions of all structures are included.
- Internal View of Sponge: Students will label a drawing that includes the osculum, ostia, central cavity, choanocytes, bud, epidermal cells, pore cells, mesoglea, and amebocytes. Definitions and functions of all structures are included.
- Feeding and Digestion in Poriferans
- Respiration, Circulation, and Excretion in Poriferans
- Asexual Reproduction: Definitions and explanations of budding, gemmules, and regeneration; advantages and disadvantages of asexual reproduction.
- Sexual Reproduction in Poriferans: Explanation of the process, as well as the advantages of sexual reproduction; hermaphroditism.
- Introduction to Cnidarians: List of animals belonging to Phylum Cnidaria, germ layers of cnidarians, reasons why cnidarians are more advanced than poriferans, radial symmetry, cnidocytes.
- The Cnidarian Body Plan: Comparison of medusa and polyp body plans, gastrodermis and gastrovascular cavity. Students will compare structures of the medusa and the polyp and will label the mouth, tentacles, epidermis, gastrodermis, mesoglea, and gastrovascular cavity in each.
- Feeding and Defense in Cnidarian: Cnidocytes and nematocysts, method of food-getting.
- Cnidarian Nervous System: Discuss of the nerve net and how it functions.
- Cnidarian Respiration, Circulation, and Excretion
- Classification of Cnidarians: Includes 4 classes of cnidarians – Hydrozoa, Cubozoa, Scyphozoa, and Anthozoa.
- Class Hydrozoa: Includes details of the freshwater hydra and the Portuguese man-of-war. Students will label a drawing of the hydra that includes tentacles, mouth, epidermis, gastrodermis, mesoglea, bud, base, gastrovascular cavity, testes, sperm, ovary, and egg. Asexual and sexual reproduction of hydra is discussed.
- Class Cubozoa: The box jellies are briefly discussed.
- Class Scyphozoa: Students will label a drawing of a jellyfish that includes epidermis, mesoglea, gastrodermis, gastrovascular cavity, mouth, tentacles, and gonads. Students will complete a drawing showing the life cycle of the jellyfish.
- Class Anthozoa: Includes details on sea anemones, the mutualistic relationship between anemones and clownfish, details about corals, and the mutualistic relationship between corals and the algae that live within them.
- Ecology of the Corals: Reasons why corals are important to marine ecosystems, the impact of human activities on coral reefs, and coral bleaching.
- Phylum Ctenophora (comb jellies) is briefly discussed.
This resource is intended for use with a first year high school biology class. I have included so that the PowerPoint and accompanying notes can be modified and edited to make this resource a perfect fit for your students. The PowerPoint is designed to hold the attention of your students. The slides are bright and colorful and contain many, many visually appealing pictures and images. Animations and transitions are included to allow you to control the pace of the lesson.
Students love using the guided notes outline as you teach the lesson. It allows the student more freedom to listen, think, and ask questions during note taking. The notes are also perfect for students with disabilities or IEP’s.
Related resources include:
Porifera and Cnidaria Warm Ups and Bell Ringers
Porifera and Cnidaria Homework Assignments and Study Guides
Phylum Porifera Task Cards
Phyla Porifera and Cnidaria Unit Test
Lab: Poriferans and Cnidarians
Phylum Cnidaria Quiz
Phylum Porifera Quiz
Phylum Porifera Crossword Puzzle
Phylum Cnidaria Crossword Puzzle
Introduction to the Animal Kingdom Warm Ups and Interactive Notebook Pages
Invertebrate Phyla Card Sort Game
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