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Deuterostome Animals (Grades 11-12)

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Deuterostome Animals

1. 
Which of the following is NOT a characteristic of deuterostome animals?
  1. radial cleavage
  2. three germ layers
  3. more species than protostomes
  4. a bastopore that becomes an anus
 
2. 
Besides the echinoderms and chordates, which other clade comprises the deuterostomes?
  1. vertebrates
  2. cephalochordates
  3. hemichordates
  4. urochordates
3. 
                         are deuterostomes that posses a dorsal hollow nerve cord, a post-anal tail, a notocord, and gills at some point in their development.
 
4. 
Birds are believed to have evolved from                         .
5. 
Which of these features allows for heat retention in a vertebrate?
  1. leathery skin on sharks
  2. feathers on birds
  3. watertight skin on reptiles
  4. scales on fish
 
6. 
Which of these is a main difference between amphibians and reptiles?
  1. Amphibian eggs can survive out of water, while reptile eggs cannot.
  2. Amphibians breathe using lungs, while reptiles breathe using gills.
  3. Amphibians can give live birth, while reptiles can only lay eggs.
  4. Amphibians have a permeable skin, while reptiles have thick skin.
7. 
Which of these characteristics is NOT found in the chordates?
  1. external skeleton
  2. bilateral symmetry
  3. gills slits during development
  4. a notocord
 
8. 
Which of the following is a characteristic of the echinoderms?
  1. bilateral symmetry
  2. pharyngeal gill slits
  3. internal skeleton of calcified plates
  4. a well-developed brain
9. 
Which of the following statements about marsupial mammals is true?
  1. They are the only egg laying mammals.
  2. Their offspring finish development within a special pouch.
  3. Their mammary glands have no nipples.
  4. They are found only in Australia.
 
10. 
When determining phylogenies among organisms, why is knowing what the larval forms look like an important piece of information?



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