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Use the Following Information and Figure to Answer the Question

question 26

Multiple Choice

Use the following information and figure to answer the question below.
In a review paper published in 2000, Adoutte et al. examined some animal phylogenies generated by comparing the ribosomal RNA (rRNA) of animals from many different phyla. They then integrated these independently created phylogenies into one phylogeny that best fit all the data.
The figure below compares a traditional phylogeny based on morphological characteristics (A) to the new molecular-based phylogeny described by Adoutte et al. (B) .
Note that platyhelminthes, nemerteans, and entoprocts, which do not have coeloms and are classified as acoelomates in the morphological phylogeny, are reclassified as lophotrochozoans in the molecular phylogeny. Similarly, groups classified as pseudocoelomates in the morphological phylogeny are reclassified as either lophotrochozoans or ecdysozoans in the molecular phylogeny; other lophotrochozoans and ecdysozoans have coeloms. Copyright 2000 National Academy of Sciences, U.S.A. (A. Adoutte, G. Balavoine, N. Lartillot, O. Lespinet, B. Prud'homme, and R. de Rosa. 2000. The new animal phylogeny. Proceedings of the National Academy of Sciences USA 97(9) :4453-56.) Use the following information and figure to answer the question below. In a review paper published in 2000, Adoutte et al. examined some animal phylogenies generated by comparing the ribosomal RNA (rRNA) of animals from many different phyla. They then integrated these independently created phylogenies into one phylogeny that best fit all the data. The figure below compares a traditional phylogeny based on morphological characteristics (A) to the new molecular-based phylogeny described by Adoutte et al. (B) . Note that platyhelminthes, nemerteans, and entoprocts, which do not have coeloms and are classified as acoelomates in the morphological phylogeny, are reclassified as lophotrochozoans in the molecular phylogeny. Similarly, groups classified as pseudocoelomates in the morphological phylogeny are reclassified as either lophotrochozoans or ecdysozoans in the molecular phylogeny; other lophotrochozoans and ecdysozoans have coeloms. Copyright 2000 National Academy of Sciences, U.S.A. (A. Adoutte, G. Balavoine, N. Lartillot, O. Lespinet, B. Prud'homme, and R. de Rosa. 2000. The new animal phylogeny. Proceedings of the National Academy of Sciences USA 97(9) :4453-56.) What does this reclassification based on molecular data imply about the evolution of acoelomates, pseudocoelomates, and coelomates? A) Pseudocoelomates can be seen as an intermediate stage between acoelomate and coelomate development. B) Although acoelomates and pseudocoelomates evolved only once, coelomates evolved multiple times in different lineages. C) Only the animals that evolved earliest are acoelomates. D) Some pseudocoelomates and acoelomates have evolved from coelomates.
Use the following information and figure to answer the question below. In a review paper published in 2000, Adoutte et al. examined some animal phylogenies generated by comparing the ribosomal RNA (rRNA) of animals from many different phyla. They then integrated these independently created phylogenies into one phylogeny that best fit all the data. The figure below compares a traditional phylogeny based on morphological characteristics (A) to the new molecular-based phylogeny described by Adoutte et al. (B) . Note that platyhelminthes, nemerteans, and entoprocts, which do not have coeloms and are classified as acoelomates in the morphological phylogeny, are reclassified as lophotrochozoans in the molecular phylogeny. Similarly, groups classified as pseudocoelomates in the morphological phylogeny are reclassified as either lophotrochozoans or ecdysozoans in the molecular phylogeny; other lophotrochozoans and ecdysozoans have coeloms. Copyright 2000 National Academy of Sciences, U.S.A. (A. Adoutte, G. Balavoine, N. Lartillot, O. Lespinet, B. Prud'homme, and R. de Rosa. 2000. The new animal phylogeny. Proceedings of the National Academy of Sciences USA 97(9) :4453-56.) What does this reclassification based on molecular data imply about the evolution of acoelomates, pseudocoelomates, and coelomates? A) Pseudocoelomates can be seen as an intermediate stage between acoelomate and coelomate development. B) Although acoelomates and pseudocoelomates evolved only once, coelomates evolved multiple times in different lineages. C) Only the animals that evolved earliest are acoelomates. D) Some pseudocoelomates and acoelomates have evolved from coelomates.
What does this reclassification based on molecular data imply about the evolution of acoelomates, pseudocoelomates, and coelomates?

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A broad concept that involves seeking a sense of peace, purpose, connection, and meaning, often related to the belief in something greater than oneself.

Positive Individual Traits

Dispositional qualities that account for why some people are happier and psychologically healthier than others.

Positive Subjective Experiences

The positive but private feelings and thoughts people have about themselves and the events in their lives.

Cognitive Dissonance

A psychological phenomenon where individuals experience mental discomfort due to holding contradictory beliefs, values, or attitudes.

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