a. List the characteristics of chordates. What were the circumstances that forced them to evolve these traits? How did these traits help them to survive the ancient seas? ( b. Vertebrates soon evolved from the chordates. What traits differentiate vertebrat from chordates? How were these traits an improvement on the original chordate body plan? C. Describe what neural crest cells are and their original pur

a. List the characteristics of chordates. What were the circumstances that forced them to evolve these traits? How did these traits help them to survive the ancient seas? ( b. Vertebrates soon evolved from the chordates. What traits differentiate vertebrat from chordates? How were these traits an improvement on the original chordate body plan? C. Describe what neural crest cells are and their original pur

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter15: Diversity Of Animals

Section: Chapter Questions

Problem 3ACQ: Figure 15.33 Which of the following statements about common features of chordates is true? a. The...

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During embryonic development, a neural crest would be found in all of the following chordates, except a. cephalochordates. b. reptiles. c. birds. d. mammals.
How are the "types ot veterbrae" modified in birds, relative to other amniotes? How is the axial skeleton adapted in birds AND primates, relative to other tetrapods? Explain how those changes relate to their upright posture and bipedal locomotion..
Fill in the blanks with synapomorphic, symplesiomorphic, or neither Mesoderm is a ___ feature of chordates, and a ___ feature of vertebrates, but mesectoderm (neural crest) is a ___ feature of chordates, and a __ feature of vertebrates
Describe the evolution of mammals, tracing their synapsid lineage from early amniote ancestors to true mammals. How would you distinguish pelycosaurs, early therapsids, cynodonts, and mammals?
Figure 15.33 Which of the following statements about common features of chordates is true? a. The dorsal hollow nerve cord is part of the chordate central nervous system. b. In vertebrate fishes, the pharyngeal slits become the gills. c. Humans are not chordates because humans do not have a tail. d. Vertebrates do not have a notochord at any point in their development; instead, they have a vertebral column.
Mammals belong to a group of amniotes known as synapsids. Three major lineages of mammals had emerged by the early Cretaceous period. In a tabulated form, compare these three lineages to illustrate their diversity in terms of: a. Embryonic development b. How the young are fed c. Period of gestation
Identify the stage(s) of embryonic development in whichcross sections of all chordate embryos closely resembleone another.
Explain the significance of the discovery of Archaeopteryx.Why did this fossil demonstrate beyond reasonable doubt that birds are grouped phylogenetically with dianosaurs ? Explain details
Identify four derived characters that all chordates haveat some point during their life
There are two types of chordates the invertebrates and the vertebrates. How do invertebrate chordates differ from vertebrate chordates? (state in your own words and provide references if there are any)
Discuss how humans, as chordates, possess all fourcharacteristics either as embryos or adults.
Nimravids Skeleton vs Siberian Tiger Skeleton vs Smilodon Necator SkeltonCompare and contrast the appearance of specific bones in the skeleton. Compare the skeleton of the extinct creatures with the extant creature, and with themselves. How might the variation in anatomy link to the likely function? Compare species' skeletal anatomy based on life history (aquatic vs terrestrial). What are other interesting factors noted in the skeletons?