Members of what phylum are characterized by a diploblastic, radially symmetrical body plan and, while not having organs and organ systems, possess distinct tissues?Multiple choice question.RotiferaBryozoaPoriferaCnidaria

Which of the following Phyla shows radial symmetry?a) Molluscab) Cnidariac) Platyhelminthesd) Chordata4. 4. Arthropods are animals witha) a segmented body, hard exoskeleton and jointed appendages.b) a limbless body composed of a series of fused ringsc) soft non-­‐segmented bodies, sometimes protected by a hard shelld) a dorsoventrally-­‐flattened body with no coelom.5. 5. Which of the following can be classed as an amniote?a) Ray-­‐finned fishb) Cartilaginous fishc) Amphibiand) Reptile6. As N (population size) approaches K (carrying capacity) for a certain population, whichof the following is predicted by the logistic equation?a) The growth rate will not change.b) The growth rate will approach zero.c) The population will increase exponentially.d) The carrying capacity of the environment will increase.

23. Which group of organisms belongs to the plant kingdom?(A). Amoeba(B). Euglena(C). Rhizopus(D). Moss24. Which phylum includes organisms that possess radial symmetry?(A). Porifera(B). Cnidaria(C). Mollusca(D). Arthropoda25. The grouping of organisms based on a common ancestor is called:(A). Taxonomy(B). Cladistics(C). Classification(D). Phylogeny26. Which of the following is not a characteristic of the kingdom Plantae?(A). Presence of chloroplasts(B). Autotrophic mode of nutrition(C). Lack of cell walls(D). Multicellular organization27. The process of grouping organisms based on their similarities and differences is known as:(A). Taxonomy(B). Phylogeny(C). Cladistics(D). Morphology28. Which group of plants lacks specialized conducting tissues for water and nutrients?(A). Bryophytes(B). Pteridophytes(C). Gymnosperms(D). Angiosperms

Animals called ______ have radial symmetry, a gastrovascular cavity, and a body composed of a layer of ectoderm and a layer of endoderm.Multiple choice question.spongescnidariansechinodermsmollusks

What animal group lacks true tissues and includes species that are asymmetrical?Multiple choice question.flatwormscnidariansmolluskssponges

Members of this phylum are characterized by a dorsal, hollow nerve cord, a notochord, pharyngeal gill slits, and a postanal tail.Multiple choice question.MammaliaEchinodermataChordataAnnelida