explain how four species of lizards all closely related came to be separate species on a Caribbean island.
No. Lizards evolved from a separate group of reptiles and, as far as reptiles go, are not closely related to dinosaurs. The modern "evolved form" of the dinosaurs is actually the birds.
No. Lizards and dinosaurs are both classified as reptiles but aside from that they are not closely related.
In terms of lineage, yes. Birds are descended from dinosaurs, which, along with lizards, belong to a group of reptiles called diapsids. Turtles come from a separate group of reptiles called anapsids.
Lizards, turtles, and Snails.
Most lizards have four legs, but there are a number of species of legless lizards, which are a separate clade from snakes.
My iguana come from Florida how do you know what they look like when they're pregnant and the eggs do you put them in a separate cage with the lizards or separate the lizards from the mother
No. Alligators are crocodilians, which are a separate branch of reptile from lizards.
No. The tuatara is more closely related to lizards and snakes than it is to dinosaurs.
The answer to you question both Yes and No ... Dinosaurs are the evolutionary ancestors of both lizards and birds but they, themselves were neither lizards or birds. They were a separate, distinct breed of beast. all to themselves
The obvious answer is that lizards have legs and snakes don't! But then there are legless lizards.... Even these 'legless' lizards however, have the remains of leg stumps visible in their anatomy. Also legless lizards are reasonably small and non-venomous, although some legged lizards are venomous and some small snakes non-venomous, so things get a bit confusing. Probably best to stick with the legs, or traces of them!
No. Pterodactyl was a pterosaur. Pterosaurs were reptiles, but they were more closely related to dinosaurs and crocodiles than they were to lizards.
No. Tuataras are more closely related to lizards and snakes than to dinosaurs. Dinosaurs are more closely related to crocodiles and even more closely related to birds, which are their only living descendants.