yes. all snakes are.
No. Like all snakes garter snakes are reptiles.
Yes, garter snakes are vertebrates. They have a backbone. All snakes and all reptiles for that matter are vertebrates.
Don't buy reptiles from Petco!
Snakes are reptiles. All reptiles have a covering of scaly skin. They do not actually have individual scales like fish do.
Majority of reptiles do lay eggs but gartner snakes are live bearers. All boas and all vipers also are live bearers.
All snakes are cold blooded because they are reptiles.
No. As with most reptiles young snakes fend for themselves.
Like all snakes garter snakes are predators. Garter snakes get their nutrients by eating small animals.
no garter snakes come out in the hot days garter snakes not like to come out in a night
Both - It depends on the species. Most snakes lay eggs, but some (like Boa constrictors and Garter Snakes) give birth to baby snakes.
Garter snakes hibernate.
If you mean "garter snakes" then the answer is no. Garter snakes bear their young live.