You discover a narrow subterranean river in the outback of Australia and estimate that it is at least 50 million years old, traveling through caves undisturbed by humans. You gather a crew of scientists to perform species sampling of the river as well as metagenomics techniques to calculate microbial diversity. The results indicate that although short in length, the river is extremely diverse. You even get to name a new species of shrimp after yourself! During one of your many interviews, you are asked to explain the high diversity of the subterranean river. What hypothesis would you cite?
A. The time hypothesis.
B. The area hypothesis.
C. The productivity hypothesis.
D. The intermediate disturbance hypothesis.
A. The time hypothesis.
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Which of the following is described as a spore-forming, gram-positive Bacillus that is hemolytic, motile, Voges-Proskauer (VP)–positive, and citrate-positive and causes two types of food poisoning as a result of toxin release?
a. C. diphtheria b. B. anthracis c. B. cereus d. C. jeikeium
The cells of which individual do not have 23 pairs of homologous chromosomes?
a. a male b. a female c. an individual with a recessive disease, such as hemophilia d. an individual with measles e. an individual with polio
A scientific explanation that is conditional and requires more investigation is called a(n)
A) theory. B) hypothesis. C) control. D) fact. E) observation.
Which of the following is a true about the members of Kingdom Fungi?
A) All members are photosynthetic. B) Absorption of dissolved organic matter through cell wall. C) Absorption of dissolved inorganic matter. D) All members are microscopic. E) All members are macroscopic.