A zoologist is investigating an unidentified marine animal specimen. They note that this creature has radial symmetry along its short axis, but has bilateral symmetry in a perpendicular axial plane. In addition, its peripheral surface appears to have several lines of cilia used for movement in the water. Which phylum is most likely to contain this specimen? Group of answer choices A. Annelida B. Mollusca C. Cnidaria D. Ctenophora

Identify from the list below the protists that function almost like multicellular organisms when food is depleted, forming a multicellular mass that forms fruiting bodies.   A. slime molds   B. oomycetes   C. cercozoans   D. diatoms

Which group is correctly paired with its description? A. diatoms-important consumers in aquatic communities B. diplomonads-protists with modified mitochondria C. apicomplexans -producers with intricate life cycles D. red algae-acquired plastids by secondary endosymbiosis

Choose which organism does not belong to the group and indicate the reason for your choice A.Synura B.Fucus C.Laminaria D.Sargassum E. Ectocarpus

Which of the following in sponges form the outermost epithelium-like layer that is in contact with the external, aquatic environment? a. Pinacocytes and choanocytes b. Pinacocytes only c. Choanocytes and collencytes d. Pinacocytes and collencytes e. Choanocytes only  f. Collencytes only

Sea urchins have radial symmetry. Explain why they are not classified as Radiata along with the cnidarians.

Annelids, Arthropods and Molluscs are protostomes. Give reason.

Taenia (Tapeworm), Fasciola (Liverfluke) are examples of which Phylum?A. Coelenterata                                        B. PlatyhelminthesC. Annelida                                                D. Arthropoda

Which of the following terms apply to the body cavity of Molluscs (except Cephalopods)? Choose all that apply. O hemocoel with a coelom persistent blastocoel O pseudocoelom/hemocoel acoelom

Match the concept in column A to the concept in column B. Write the letter of the correct answer on the blank provided. A a. Holothuroidea b. Chelonia c. Zebrina pendula d. Pandaka pygmaea e. echidna f. Architeuthis harveyi g. Gymnophiona h. Pithecophaga јefferyi i. corallum j. counting of body parts k.malacostracan body Lindusium 1 Cnidaria 2 Mollusca Arthropoda Echinodermata 4 Chordata Meristics amphibians reptiles 7 8. aves 10 mammals