Identify and naming of organisms is
A. Paleontology
B. Cytology
C. Grouping
D. Taxonomy
E. Classification
Ans: D. Taxonomy
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Eukaryotes have at least three main mechanismsfor regulating translation. Which of the following is not one of those mechanisms?
A. Initiation factorsare subject to phosphorylation by protein kinases. B. Some proteins bind directly to mRNA and act as translationalrepressors. C. Intron-containing transcripts are targeted for export out of the nucleus by splicing factors. D. Binding proteins can disruptthe interaction between eIF4E and eIF4G.
What is host plant resistance?
A. The ability to prevent herbivory through various defenses. B. The ability of plants to grow taller than their competitors. C. A form of crypsis practiced by tropical rain forest plants. D. Producing large quantities of seeds in some years. E. The secretion of chemicals that are toxic to competing plant species.
The lionfish is a venomous fish found primarily in the Red Sea and the Indian Ocean. In the 1990s, lionfish were accidentally released into the Atlantic Ocean, where they found abundant resources and favorable environmental conditions. Which of the following scenarios is most likely to result in the lionfish having a major impact on the communities into which they were introduced?
(A) With no natural predators, the lionfish population will become very large. (B) Some native species of invertebrates will develop a resistance to lionfish venom. (C) Random mating will allow the lionfish population to reach Hardy-Weinberg equilibrium. (D) A virus that specifically infects lionfish will become more prevalent.
Which of the following is within the range of heat escaping from the surface of Earth?
a. infrared radiation b. gamma rays c. UV radiation d. X-rays