Amphibia And Reptiles
The book Amphibia And Reptiles was written by author Here you can read free online of Amphibia And Reptiles book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Amphibia And Reptiles a good or bad book?
Where can I read Amphibia And Reptiles for free?
In our eReader you can find the full English version of the book. Read Amphibia And Reptiles Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Amphibia And Reptiles
In our eReader you can find the full English version of the book. Read Amphibia And Reptiles Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Amphibia And Reptiles
What reading level is Amphibia And Reptiles book?
To quickly assess the difficulty of the text, read a short excerpt:
Eespiration is effected by lungs ; and gills are entirely absent, even during embryonic life. 15. Lateral sense-organs are absent. I 16. The kidneys have no nephrostomes. Each kidney has one separate ureter.
17. There is always a typical cloaca. 1 18. The eggs are meroblastic.
19. Fertilisation is internal, and is effected, with the single exception of Sphenodon, by means of male copulatory organs. --* 20. An amnion and an allantois are formed during development.
Numbers 1, 2, 6, 7, 8, 14, 16, ...18, 20 separate the Eeptiles from the Amphibia. Cf. Also pp. 4 and 5. Numbers 9 (6), 10, 12, and 13 separate them from the Birds and Mammals. Numbers 3, 8, and 1 1 separate them from the Mammals.
The evolution of the classification of the Reptiles has to a certain extent been already treated on pp. 7-9. For a long time only Chelonia or Tortoises. Ophidia or Snakes, and Saurii were recognised as their principal divisions. Then the Crocodiles were separated from the Lizards ; later the Coeciliae were removed from the Snakes and referred to the Amphibia, vii CHARACTERS CLASSIFICATION 279 and ultimately Sphenodon was recognised as deserving a separate position, equal in rank to the other groups.
What to read after Amphibia And Reptiles?
You can find similar books in the "Read Also" column, or choose other free books by Hans Gadow to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Eespiration is effected by lungs ; and gills are entirely absent, even during embryonic life. 15. Lateral sense-organs are absent. I 16. The kidneys have no nephrostomes. Each kidney has one separate ureter.
17. There is always a typical cloaca. 1 18. The eggs are meroblastic.
19. Fertilisation is internal, and is effected, with the single exception of Sphenodon, by means of male copulatory organs. --* 20. An amnion and an allantois are formed during development.
Numbers 1, 2, 6, 7, 8, 14, 16, ...18, 20 separate the Eeptiles from the Amphibia. Cf. Also pp. 4 and 5. Numbers 9 (6), 10, 12, and 13 separate them from the Birds and Mammals. Numbers 3, 8, and 1 1 separate them from the Mammals.
The evolution of the classification of the Reptiles has to a certain extent been already treated on pp. 7-9. For a long time only Chelonia or Tortoises. Ophidia or Snakes, and Saurii were recognised as their principal divisions. Then the Crocodiles were separated from the Lizards ; later the Coeciliae were removed from the Snakes and referred to the Amphibia, vii CHARACTERS CLASSIFICATION 279 and ultimately Sphenodon was recognised as deserving a separate position, equal in rank to the other groups.
What to read after Amphibia And Reptiles?
You can find similar books in the "Read Also" column, or choose other free books by Hans Gadow to read onlineMoreLess
Read book Amphibia And Reptiles for free
You can download books for free in various formats, such as epub, pdf, azw, mobi, txt and others on book networks site. Additionally, the entire text is available for online reading through our e-reader. Our site is not responsible for the performance of third-party products (sites).
Write Review:
Guest
Read Also
8 / 10
8 / 10
9 / 10
9 / 10
User Reviews: