The capsule at the top of the moss sporophyte that produces spores is called the:
A. sporangium.
B. splash cup.
C. prothalus.
D. gametophyte.
E. gamete.
A
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Contraction of the muscles surrounding an arteriole that decreased its diameter by 50% would
A. increase the resistance in the arteriole approximately 16 fold. B. decrease the resistance in the arteriole approximately 16 fold. C. increase the resistance in the arteriole by approximately 50%. D. decrease the resistance in the arteriole approximately 50%. E. not be expected to change resistance in the arteriole.
According to the endosymbiont hypothesis,
eukaryotic cells evolved after and as a consequence of a. the cyclic pathway of photosynthesis. b. anaerobic respiration. c. cell division. d. mutual dependency. e. chemosynthesis
All of the following are lipids except:
A. cholesterol B. glycogen C. phospholipids D. female sex hormones E. waxes
Using the numbers 1-4, label the correct chronological sequence of events for the Gram staining procedure.(1, 2, 3, 4) Apply iodine for 1 minute to the smear and rinse.(1, 2, 3, 4) Add crystal violet for 60 seconds and rinse.(1, 2, 3, 4) Add 95% ethanol for 10-20 seconds and rinse.(1, 2, 3, 4) Apply safranin for 60 seconds and rinse.
Fill in the blank(s) with the appropriate word(s).