Which of the following is the dominant stage of the Bryophyte moss lifecycle?
a) sporophyte
b) gametophyte
c) lycophyte
d) pterophyte
e) stomatophyte
Ans: b) gametophyte
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Which group of organisms is thought to be responsible for the corrosion of submerged metal structures and oil pipelines?
A) fermentative microorganisms B) acidophilic iron-oxidizers C) sulfate reducers D) hydrocarbon-degrading anaerobes
_____________ models are more consistent with the facts of body-weight regulation than are set-point models
Fill in the blank(s) with the appropriate word(s).
Which of the following living reptiles care for their young and have a four-chambered heart, as birds do?
A. lizards B. crocodiles C. turtles D. tuataras E. snakes
The mixture of food and digestive juices that leaves the stomach is called:
A) trypsin. B) cud. C) chyme. D) pepsin.