Name BIOL 1307, GENERAL BIOLOGY I Homework no. 6, Phylum Chordata For cach descr
ID: 206642 • Letter: N
Question
Name BIOL 1307, GENERAL BIOLOGY I Homework no. 6, Phylum Chordata For cach description below, write in the blank the one letter that best matches it to the listed group. There is only one "best" answer for cach description, so choose the letter that is correctly inclusive of all members of that group. The choices are a mixture of formal taxonomic levels and informal group names. A. Phylum Chordata (as a whole) I. Class Amphibia B. Subphylum Cephalochordata J. Class Reptilia C. Subphylum Urochordata K. Class Aves D. Subphylum Vertebrata L. Class Mammalia (as a group) E. Class Agnatha M. Subclass Prototheria F. jawed vertebrates (as a group) N. Subclass Metatheria G. Class Chondrichthyes O. Subclass Eutheria H. Class Osteichthyes 1. birds 2. bony jawed fishes cartilaginous jawed fishes diaphragm 5. dorsal, hollow nerve cord 6. egg-laying mammals 7. feathers 8. first terrestrial vertebrates to develop internal fertilization 9. first terrestrial vertebrates to develop the shelled, amniotic egg 10. gill slits in pairs along the pharynx 11. hagfishes 12. hair 13 invertebrate group reduced to only one extant genus, Brachiostoma (Amphiorus) 14. invertebrate larvac are bilaterally symmetrical, but adults are asymmetric filter feeders 15. jaw develops from the first and second pairs of gill arches 16. jointed, living endoskeleton of cartilage or bone 17. keratin 18. lampreys 19. lancelets 20. lobe-finned fishes 21. mammals that retain a cloaca 22. mammals with poorly developed uterus and placenta, young develop in a pouch 23. mammary glands 24. marsupials 25. milk 26 monotremes 27. most precisely, where humans are classified 28. notochord 29. notochord is replaced in embryo by a segmented vertebral column 30. pectoral and pelvic girdles 31. perhaps surviving descendants of the dinosaurs 32. placental mammals 33. ray-finned fishes 34. sharks, rays, skates, sawfish 35, single temporal fenestra (“arched check bonc") 36. swim bladder that can be filled with air to regulate buoyancy 37. tail extending beyond the anus 38. tetrapods that live a “double life" 39. tunicates 40. young are “tadpoles"Explanation / Answer
The correct choices for the list will be -
1 - K
2 - F
3 - G
4 - L
5 - A
6 - M
7 - K
8 - J
9 - J
10 -
11 - E
12 - M
13 - B
14 - C
15 -
16 - F
17 - L
18 - E
19 - B
20 - H
21 - M
22 - N
23 - L
24 - N
25 - L
26 - M
27 - O
28 - A
29 - D
30 - D
31 - K
32 - O
33 - H
34 - G
35 - L
36 - H
37 - A
38 - I
39 - C
40 - I
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