Chapter 26 – Sponges and Cnidarians B $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND

Topic 1: $100 Question The body symmetry of a cnidarian is a. radial in the medusa and bilateral in the polyp stages. b. radial in both the medusa and the polyp sages. c. bilateral in both the medusa and polyp stages. d. bilateral in the medusa stage and radial in the polyp stage. BACK TO GAME ANSWER

Topic 1: $100 Answer The body symmetry of a cnidarian is a. radial in the medusa and bilateral in the polyp stages. b. radial in both the medusa and the polyp sages. c. bilateral in both the medusa and polyp stages. d. bilateral in the medusa stage and radial in the polyp stage. BACK TO GAME

Topic 1: $200 Question How can an extremely diverse coral reef live in water that contains few nutrients? a. corals obtain nutrients from the runoff from land. b. reef-building corals live symbiotically with photosynthetic algae. c. corals recycle nutrients. d. fishes maintain the ecological balance of coral reefs. BACK TO GAME ANSWER

Topic 1: $200 Answer How can an extremely diverse coral reef live in water that contains few nutrients? a. corals obtain nutrients from the runoff from land. b. reef-building corals live symbiotically with photosynthetic algae. c. corals recycle nutrients. d. fishes maintain the ecological balance of coral reefs. BACK TO GAME

Topic 1: $300 Question Unlike plant cells, animal cells do not have a. nuclei. b. organelles. c. cell walls. d. cell membranes BACK TO GAME ANSWER

Topic 1: $300 Answer Unlike plant cells, animal cells do not have a. nuclei. b. organelles. c. cell walls. d. cell membranes BACK TO GAME

Topic 1: $400 Question A blastula is a stage in the development of an embryo that consists of a. a solid ball of cells. b. a hollow ball of cells. c. a flat sheet of cells. d. a folded sheet of cells. BACK TO GAME ANSWER

Topic 1: $400 Answer A blastula is a stage in the development of an embryo that consists of a. a solid ball of cells. b. a hollow ball of cells. c. a flat sheet of cells. d. a folded sheet of cells. BACK TO GAME

Topic 1: $500 Question Some biologists believe that sponges evolved a. from seed plants. b. as the result of asexual reproduction. c. independently of all other animals. d. from hydras. BACK TO GAME ANSWER

Topic 1: $500 Answer Some biologists believe that sponges evolved a. from seed plants. b. as the result of asexual reproduction. c. independently of all other animals. d. from hydras. BACK TO GAME

Topic 2: $100 Question Organisms that spend their entire adult lives attached to one spot are said to be a. flagellated. b. symmetric. c. heterotrophic. d. sessile. BACK TO GAME ANSWER

Topic 2: $100 Answer Organisms that spend their entire adult lives attached to one spot are said to be a. flagellated. b. symmetric. c. heterotrophic. d. sessile. BACK TO GAME

Topic 2: $200 Question The upper side of an organism is its a. dorsal side. b. ventral side. c. anterior side. d. posterior side. BACK TO GAME ANSWER

Topic 2: $200 Answer The upper side of an organism is its a. dorsal side. b. ventral side. c. anterior side. d. posterior side. BACK TO GAME

Topic 2: $300 Question Muscle tissue exerts force by becoming a. cooler. b. warmer. c. longer. d. shorter. BACK TO GAME ANSWER

Topic 2: $300 Answer Muscle tissue exerts force by becoming a. cooler. b. warmer. c. longer. d. shorter. BACK TO GAME

Topic 2: $400 Question Which of the three cell layers in animal embryos gives rise to muscles and much of the circulatory, reproductive, and excretory systems? a. endoderm b. mesoderm c. protostome d. ectoderm BACK TO GAME ANSWER

Topic 2: $400 Answer Which of the three cell layers in animal embryos gives rise to muscles and much of the circulatory, reproductive, and excretory systems? a. endoderm b. mesoderm c. protostome d. ectoderm BACK TO GAME

Topic 2: $500 Question Which is NOT associated with sponges? a. choanocytes b. medusa c. spicules d. gemmules BACK TO GAME ANSWER

Topic 2: $500 Answer Which is NOT associated with sponges? a. choanocytes b. medusa c. spicules d. gemmules BACK TO GAME

Topic 3: $100 Question An animal that ha distinct left and right sides shows a. radial symmetry. b. bilateral symmetry. c. segmentation. d. Several planes of symmetry. BACK TO GAME ANSWER

Topic 3: $100 Answer An animal that ha distinct left and right sides shows a. radial symmetry. b. bilateral symmetry. c. segmentation. d. Several planes of symmetry. BACK TO GAME

Topic 3: $200 Question Many small aquatic organisms move oxygen and carbon dioxide through their skin by the process of a. extracellular digestion. b. muscular contractions. c. cephalization. d. diffusion. BACK TO GAME ANSWER

Topic 3: $200 Answer Many small aquatic organisms move oxygen and carbon dioxide through their skin by the process of a. extracellular digestion. b. muscular contractions. c. cephalization. d. diffusion. BACK TO GAME

Topic 3: $300 Question When an animal’s environment changes, sexual reproduction improves a species’ ability to a. react. b. evolve. c. increase its numbers rapidly. d. produce genetically identical offspring. BACK TO GAME ANSWER

Topic 3: $300 Answer When an animal’s environment changes, sexual reproduction improves a species’ ability to a. react. b. evolve. c. increase its numbers rapidly. d. produce genetically identical offspring. BACK TO GAME

Topic 3: $400 Question A parasite is a type of a. vertebrate. b. detritivore. c. algae. d. symbiont. BACK TO GAME ANSWER

Topic 3: $400 Answer A parasite is a type of a. vertebrate. b. detritivore. c. algae. d. symbiont. BACK TO GAME

Topic 3: $500 Question The benefit of sponge’s producing gemmules is that gemmules a. are a form of sexual reproduction. b. help to filter food for the sponge. c. defend the sponge against predators. d. allow the sponge to survive long periods of harsh conditions. BACK TO GAME ANSWER

Topic 3: $500 Answer The benefit of sponge’s producing gemmules is that gemmules a. are a form of sexual reproduction. b. help to filter food for the sponge. c. defend the sponge against predators. d. allow the sponge to survive long periods of harsh conditions. BACK TO GAME

Topic 4: $100 Question In jellyfish a. both polyp and medusa are diploid. b. both polyp and medusa are haploid. c. the medusa is diploid and the polyp is haploid. d. the medusa is haploid and the polyp is diploid. BACK TO GAME ANSWER

Topic 4: $100 Answer In jellyfish a. both polyp and medusa are diploid. b. both polyp and medusa are haploid. c. the medusa is diploid and the polyp is haploid. d. the medusa is haploid and the polyp is diploid. BACK TO GAME

Topic 4: $200 Question The nerve cells of cnidarians make up a(an) a. brain. b. hydrostatic skeleton. c. nerve net. d. ocelli. BACK TO GAME ANSWER

Topic 4: $200 Answer The nerve cells of cnidarians make up a(an) a. brain. b. hydrostatic skeleton. c. nerve net. d. ocelli. BACK TO GAME

Topic 4: $300 Question Coral bleaching is a serious ecological threat because it a. causes corals to overpopulate the area. b. destroys the beauty of a coral reef. c. pollutes the water. d. causes corals to die. BACK TO GAME ANSWER

Topic 4: $300 Answer Coral bleaching is a serious ecological threat because it a. causes corals to overpopulate the area. b. destroys the beauty of a coral reef. c. pollutes the water. d. causes corals to die. BACK TO GAME

Topic 4: $400 Question The class Scyphozoa contains a. sea anemones. b. jellyfishes. c. corals. d. hydras. BACK TO GAME ANSWER

Topic 4: $400 Answer The class Scyphozoa contains a. sea anemones. b. jellyfishes. c. corals. d. hydras. BACK TO GAME

Topic 4: $500 Question Coral reefs occur in areas where there are a. high levels of sediments. b. very deep waters. c. very cool waters. d. high levels of light. BACK TO GAME ANSWER

Topic 4: $500 Answer Coral reefs occur in areas where there are a. high levels of sediments. b. very deep waters. c. very cool waters. d. high levels of light BACK TO GAME

Topic 5: $100 Question In a hydra, the gastroderm and the epidermis are separated by a jellylike a. mesoglea. b. body cavity. c. medusa. d. mesoderm. BACK TO GAME ANSWER

Topic 5: $100 Answer In a hydra, the gastroderm and the epidermis are separated by a jellylike a. mesoglea. b. body cavity. c. medusa. d. mesoderm. BACK TO GAME

Topic 5: $200 Question A characteristic of cnidarians is that they are a. found only in warm, tropical waters. b. named for their body symmetry. c. attached to a surface throughout life. d. carnivorous animals. BACK TO GAME ANSWER

Topic 5: $200 Answer A characteristic of cnidarians is that they are a. found only in warm, tropical waters. b. named for their body symmetry. c. attached to a surface throughout life. d. carnivorous animals BACK TO GAME

Topic 5: $300 Question In a cnidarian, cells that sense gravity are a. amoebocytes. b. cnidocytes. c. ocelli. d. statocysts. BACK TO GAME ANSWER

Topic 5: $300 Answer In a cnidarian, cells that sense gravity are a. amoebocytes. b. cnidocytes. c. ocelli. d. statocysts. BACK TO GAME

Topic 5: $400 Question Cnidarians have two basic body types, a medusa and a(an) a. larva. b. osculum. c. polyp. d. tentacle. BACK TO GAME ANSWER

Topic 5: $400 Answer Cnidarians have two basic body types, a medusa and a(an) a. larva. b. osculum. c. polyp. d. tentacle. BACK TO GAME

Topic 5: $500 Question Which are the simplest animals to have body symmetry? a. sponges b. cnidarians c. nematocysts d. algae BACK TO GAME ANSWER

Topic 5: $500 Answer Which are the simplest animals to have body symmetry? a. sponges b. cnidarians c. nematocysts d. algae BACK TO GAME

FINAL ROUND Question Question: a. Choice 1 b. Choice 2 c. Choice 3 d. Choice 4 BACK TO GAME ANSWER

FINAL ROUND Answer Question: a. Choice 1 b. Choice 2 c. Choice 3 (correct answer) d. Choice 4 BACK TO GAME