Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Advanced Biology II Cnidarians Practice Sheet Fill-in-the-Blanks All (1) _________________________ are tentacled, radial animals; they include jellyfishes, sea anemones, corals, and freshwater animals like Hydra. Most of these animals live in the sea, and they alone produce (2) _________________________, which are capsules capable of discharging threads that entangle prey or fend off predators. Cnidarians have two common body plans, the (3) __________________________ that look like bells, upside-down saucers, or umbrellas, and the (4) __________________________ that has a tubelike body with a tentacle-fringed mouth at one end. The saclike cnidarian processes food with its (5)_____________________, a sheetlike lining with glandular cells that secrete digestive enzymes. The (6) _______________________ covers the rest of the body’s surfaces. Each of these linings is referred to as an (7) ___________________________. (8) ____________________________ cells form a “nerve net” that coordinates responses to stimulation. Working together with (9)________________________ cells and (10) _______________________ cells, the nerve net controls movement and shape changes. General Questions 11. What does the Latin word Cnidaria mean? 12. What body shape do all Cnidarians have? 13. What do tentacles and stinging cells help Cnidarians do? 14. What does a polyp body look like? What is a Cnidarian that looks like this as an adult? 15. What does a medusa body look like? What is a Cnidarian that looks like this as an adult? 16. How do polyps reproduce asexually?