DEFINITIONS AND KEY POINTS FOR OBJECTIVES IN AMPHIBIANS
DEFINITIONS AND KEY POINTS FOR OBJECTIVES IN AMPHIBIANS
| TERMS | DEFINITIONS |
| Tetrapods | The vertebrate with four legs are called tetrapods.
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| Amniotes | The vertebrate in which their embryo is covered by a protective membrane are called amniotes. Example: reptile birds and mammals.
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| Anamniotes | The vertebrate in which their embryo is not coved by a protective membrane are called aminotes. Example Amphibians. Fishes |
| Caudata | The amphibians with tail. |
| Spermatheca | Salamanders store the sperm in a special pouch called spermatheca. |
| Paedomorphosis | A phenomenon in which larva become sexually mature while still showing larval characteristics is called paedomorphosis. |
| Urostyle | The postsacral vertebrae of anurans are fused into a rodlike urostyle. |
| Zygapophyses | Every vertebrae has supportive process called zygapophyses. |
| Lymphatic heart | The amphibians have contractile vessels called lymphatic heart. |
| Ectotherms | the animals which heat from external sources are called ectotherms. |
| Basking | The absorption of heat by sitting in sunshine or other arms environment is called basking. |
| Accommodation | The bending (refracting) of light rays at a focal point on the retina is called focusing of accommodation. |
| Cloaca | A common opening of anus and urinogenital organs is called cloaca. |
| Osmoregulation | The maimiatince of water and salt balance in the body is called osmoregulation. |
| Nocturnal | The animals which come out at day and night for feeding are called nocturnal. |
| Diurnal | The animal which can come out both at day and night for feeding are called diurnal |
| Amplexus | A method during mating in which male become dorsal to Female and grasp its body is called amplexus. |
| Vocalization | The sound production in amphibians is called vocalization. |
| Metamorphosis | Metamorphosis is a series or abrupt structural. physiological and behavioral changes that transform a larva into an adult. |
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