Use the following information to answer the question.
Giardia intestinalis can cause disease in several different mammalian species, including humans. Giardia organisms (G. intestinalis) that infect humans are similar morphologically to those that infect other mammals, thus they have been considered a single species. However, G. intestinalis has been divided into different subgroups based on their host and a few other characteristics.
In 1999, a DNA sequence comparison study tested the hypothesis that these subgroups actually constitute different species. The following phylogenetic tree was constructed from the sequence comparison of rRNA from several subgroups of G. intestinalis and a few other morphologically distinct species of Giardia. The researchers concluded that the subgroups of Giardia are sufficiently different from one another genetically that they could be considered different species. (T. Monis, et al. 1999. Molecular systematics of the parasitic protozoan Giardia intestinalis. Mol. Biol. Evol. 16[9]:1135-44.) ![Use the following information to answer the question. Giardia intestinalis can cause disease in several different mammalian species, including humans. Giardia organisms (G. intestinalis) that infect humans are similar morphologically to those that infect other mammals, thus they have been considered a single species. However, G. intestinalis has been divided into different subgroups based on their host and a few other characteristics. In 1999, a DNA sequence comparison study tested the hypothesis that these subgroups actually constitute different species. The following phylogenetic tree was constructed from the sequence comparison of rRNA from several subgroups of G. intestinalis and a few other morphologically distinct species of Giardia. The researchers concluded that the subgroups of Giardia are sufficiently different from one another genetically that they could be considered different species. (T. Monis, et al. 1999. Molecular systematics of the parasitic protozoan Giardia intestinalis. Mol. Biol. Evol. 16[9]:1135-44.) Which of the following changes would a modern systematist be most likely to make after learning of the results of the rRNA analyses? A) continue to keep subgroups A-D as members of the species G. intestinalis B) break the species G. intestinalis into four separate species, A, B, C, and D C) combine subgroup D and G. microti into one species D) combine all the subgroups of G. intestinalis (A-D) and G. microti to make one species](https://d2lvgg3v3hfg70.cloudfront.net/TB3075/11ea30ae_72f4_3117_a56d_c9a8c004e1a6_TB3075_00.jpg)
Which of the following changes would a modern systematist be most likely to make after learning of the results of the rRNA analyses?
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Net Asset Value
The per-share value of a mutual fund or ETF, calculated by dividing the total value of all the securities in the portfolio, minus liabilities, by the number of shares outstanding.
Liquidate Positions
The process of selling securities or other assets to convert them into cash, often done to exit a market or meet financial obligations.
Money Market Mutual Funds
Mutual funds that invest in short-term, high-quality debt securities and are designed to offer investors liquidity and a safe place to invest in the short term.
Commercial Paper
Short-term unsecured debt issued by large corporations.
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