Biology
- Animal Kingdom (kingdom Animalia)
Click here for PDFAnimals are multicellular and heterotrophic. Animal kingdom is most diverse than the plant kingdom. BASIS OF CLASSIFICATION 1. Levels of organization 3 levels (based on organization of cells):a. Cellular level of organization:...
- Respiratory Organs Of Animals
Phylum Respiratory organ Porifera Body surface Cnidaria Body surface Ctenophora Body surface Platyhelminthes Body surface Nemathelminthes Body surface Annelida Skin (integument) Arthropoda Aquatic insects (mayflies, nymphs...
- Animal Kingdom- Notes
Phylum Name given by No. of species Levels of organization Germ layers Symmetry Coelom Porifera Robert Grant 5000 Cellular Diploblastic Asymmetrical/ radial Acoelomate Cnidaria Leuckart (1847) 9000 Tissue...
- Amazing Facts About Amphibians
Some frogs can be frozen solid, then thawed, and continue living.Some frogs can pull their eyes into their throat and help push food down!Frogs live on all continents except Antarctica.Wood frogs can be frozen solid and then thawed, and continue living....
- Types Of Hearts
Types Seen in One-chambered In invertebrates 2-chambred Fishes 3-chambered Amphibians and some reptiles Incompletely 4-chambered Certain reptiles 4-chambered Crocodiles, birds & mammals 13-chambered ...
Biology
Comparison between Amphibians and Reptiles
Differences between
Amphibians and Reptiles
| Features | Amphibians | Reptiles |
| Group | They come under class Amphibia | They come under class Reptilia |
| Habit and habitat | They usually stay near water sources to prevent drying out, and have smooth skin. | They are groups of animals that breathe air, have scales on their bodies, and lay eggs. |
| Breathing | Gills, skin and lungs | Lungs |
| Metabolism | Ectothermic (Poikilothermic or cold-blooded) | Ectothermic (Poikilothermic or cold-Blooded) |
| Metamorphosis | Yes. Breathes water through gills until it develops lungs. | No. Looks like a miniature adult when born. |
| Heart | 3-chambered. Two atria and one ventricle | 3-chambered, two atria and one ventricle. But ventricle is partially divided. Crocodiles have 4-chambered heart. |
| Limbs | Short fore- limbs and long hind limbs. They are generally pentadactyl (with five webbed digits). | Four limbs are present (except snakes). |
| Skin | Smooth, moist, rather sticky skin. Mucous glands are present. | Dry and scaly. Scales are made of keratin. Skin is found underneath the scales. |
| Eggs | Soft gel surrounding their eggs without any hard covering. Usually found in water or damp places. | Amniotic egg. Have hard, leathery eggs laid on land or they keep eggs in their bodies until they hatch. |
| Reproduction | Sexual. External fertilization | Sexual. Internal fertilization |
| Examples | Frogs, toads, newts, salamanders, caecilians or blindworms etc | Snakes, lizards, crocodiles, turtles etc |
- Animal Kingdom (kingdom Animalia)
Click here for PDFAnimals are multicellular and heterotrophic. Animal kingdom is most diverse than the plant kingdom. BASIS OF CLASSIFICATION 1. Levels of organization 3 levels (based on organization of cells):a. Cellular level of organization:...
- Respiratory Organs Of Animals
Phylum Respiratory organ Porifera Body surface Cnidaria Body surface Ctenophora Body surface Platyhelminthes Body surface Nemathelminthes Body surface Annelida Skin (integument) Arthropoda Aquatic insects (mayflies, nymphs...
- Animal Kingdom- Notes
Phylum Name given by No. of species Levels of organization Germ layers Symmetry Coelom Porifera Robert Grant 5000 Cellular Diploblastic Asymmetrical/ radial Acoelomate Cnidaria Leuckart (1847) 9000 Tissue...
- Amazing Facts About Amphibians
Some frogs can be frozen solid, then thawed, and continue living.Some frogs can pull their eyes into their throat and help push food down!Frogs live on all continents except Antarctica.Wood frogs can be frozen solid and then thawed, and continue living....
- Types Of Hearts
Types Seen in One-chambered In invertebrates 2-chambred Fishes 3-chambered Amphibians and some reptiles Incompletely 4-chambered Certain reptiles 4-chambered Crocodiles, birds & mammals 13-chambered ...