Identify the organisms that belong to the phylum that are included in the Deuterostomia.
A. tapeworms and mollusks
B. sea stars and crocodiles
C. octopuses and sea stars
D. polychaetes and roundworms
E. blood flukes and crustaceans
Answer: B
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Which of the following is not true about archaeal ribosomes?
A. They may possess ribosome binding sites homologous to bacterial Shine-Dalgarno sequences. B. They are 70S like bacterial ribosomes. C. They have similar antibiotic sensitivities to those of bacteria. D. All of the choices are correct.
All warts caused by human papillomaviruses are linked to cancers.
Answer the following statement true (T) or false (F)
The female gametophyte is the ________, which develops from a megaspore.
Fill in the blank(s) with the appropriate word(s).
Within the stomach lining, special cells secrete substances to aid digestion. Which type of cell secretes hydrochloric acid?
A. enteroendocrine cells B. mucous cells C. chief cells D. parietal cells