The spindle is
A. the network of protein cables that will pull the chromatids to opposite ends of the cell.
B. the new cell membrane as it reforms across the cytoplasm during cytokinesis.
C. the protein that connects the duplicated chromosomes.
D. the protein that DNA winds itself around.
Answer: A
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The equation (N/t)/N1 (where N denotes the size of a population and t represents time) is used to calculate:
A. a habitat's carrying capacity. B. the "available" percentage of a habitat's carrying capacity. C. a population's density. D. a population's intrinsic growth rate. E. Euler's number.
Members of the subphylum include spiders, ticks, mites, scorpions, and horseshoe crabs. Their first
pair of appendages are fanglike structures used for biting prey, and their second pair of appendages, called pedipalps, are used for many different activities.
a. Myriapoda b. Trilobita c. Chelicerata d. Hexapoda e. Crustacea
Live attenuated vaccines
A) are closest to the actual infectious agent encountered in nature and require the use of an adjuvant. B) are the closest to the actual infectious agent encountered in nature and stimulate potent immune responses to multiple antigens on the pathogen. C) require the use of an adjuvant. D) stimulate potent immune responses to multiple antigens on the pathogen. E) are the closest to the actual infectious agent encountered in nature.
What happens when you place a bacterial cell into a hypertonic solution?
A) lysis B) no effect on the cell C) plasmolysis D) The cell will burst. E) The cell will swell.