No - they are naturally solitary creatures, only seeking each other out during the breeding season.
Reptiles do need oxygen
No. Reptiles commonly reporduce on land.
Reptiles need land too. Fish do not.
yes
yes
Because they can generate their own body heat - reptiles cannot and need a warm environment
Amphibians can absorb oxygen through their skin - reptiles need to physically breathe.
Iguanas are reptiles, not amphibians.they need to bask in the sun like other reptiles. No, it's a reptile.
One word. Reptiles
Reptiles are animals. All animals in full activity need cellular respiration and all vertebrates I know of do that by means of circulation. Reptiles do circulate blood in their systems.
Because frogs aren't reptiles, their amphibians. And frogs need moisture to keep their skin from breaking. Snakes and lizards are Reptiles, and do not require this need for moisture.
Alligators are reptiles.. they are cold-blooded, and need the sun for its heat.