hich of the following have a simila A. Ribosomes and Mitort B. Lipid Bilaver 17 Which of the following plant structures plays a direct role in increasing the length of a tree branch? A. stoma (stomate) B. trichome C. chloroplast D. apical meristem E. phloem 18. Which of structure? the following does NOT include a correct association of animal and anatomical A. sponge: cnidocyte B. nematode: complete digestive system C. jellyfish: gastrovascular cavity D. tunicate: dorsal nerve cord E. sea star: water vascular system In anc on, 19. Which of the following is associated ONLY with prokaryotic cells? A. nucleus B. nucleoid C. nucleolus D. ribosome E. cell wall pec B, 20. Retroviruses are A. the causes of cholera and sickle cell disease B. the most primitive forms of life on earth C. able to insert their genes into the genome of a host cell D. able to carry out a form of sexual reproduction unknown in animals E. capable of infecting prokaryotic cells only hc Ze most closely related, evolutionarily 21. In which of the following pairs are the organisms speaking? A. yeast: apple tree B. butterfly: lobster C. bacterium: amoeba (ameba) D. sea star: octopus E. grass: mushroom 22. Which of the following groups consists strictly of eukaryotic organisms that are heterotrophic and lack cell walls? A. Animalia B. Archaea C. Fung D. Plantae E. Bacteria