A recent book by a reputable biologist suggests there is a deep, hot, acidic biosphere under the Earth's crust that may have more biomass than all life at the Earth's surface. What type of organisms would most likely be found in this deep biosphere?
A. primitive heat-loving plants
B. primitive animals
C. viruses
D. fungi living on the detritus from above
E. thermoacidophilic archaea
Answer: E
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Assuming independent assortment for all gene pairs, what is the probability that the following parents, AABbCc à— AaBbCc, will produce an AaBbCc offspring?
A) 1/2 B) 1/16 C) 1/8 D) 3/4 E) 9/16
The organism that has been most commonly associated with human disease, particularly in patients who are immunocompromised, such as those infected with human immunodeficiency virus (HIV), is:
a. Rhodococcus. b. Gordonia. c. Tsukamurella. d. Streptomyces.
The two groups representing the "jawless" fishes are:a
Cephalochordata and Placoderms. b. Chondrichthyes and Actinistia. c. Myxini and Petromyzontida. d. Dipnoi and Actinistia. e. Placoderms and Petromyzontida.
The amount of sunlight that falls on plant leaves and is captured by photosynthesis is approximately ________.
A. 25% B. 1% C. 50% D. 10%