Do Invertebrates Have Live Birth?

Do Invertebrates Have Live Birth? Do invertebrates have live birth? It is not only mammals that give birth. Some reptiles, amphibians, fish and invertebrates carry their developing young inside them. Some of these are ovoviviparous, with the eggs being hatched inside the mother’s body, and others are viviparous, with the embryo developing inside her body,

Do Amphibians Have 2 Lives?

Do Amphibians Have 2 Lives? Do amphibians have 2 lives? More accurately, amphibians’ “double life” refers to two distinct life stages — a larval stage and an adult stage. Most amphibians lay eggs, which hatch into larvae and undergo an amazing transformation (or metamorphosis) as they move from larval to adult stages. Why amphibians have

Do Frogs Have Backbones?

Do Frogs Have Backbones? Do frogs have backbones? Amphibians often vocalize, for example the ‘chorus’ of frogs. This sets them apart from reptiles, whose sound is very restricted. A number of other characteristics can be found in amphibians, but they are found in other animal groups also. Amphibians are vertebrates, meaning they have a backbone.

Did Fish Appear Before Amphibians?

Did Fish Appear Before Amphibians? Did fish appear before amphibians? Amphibians, reptiles, mammals, and birds evolved after fish. The first amphibians evolved from a lobe-finned fish ancestor about 365 million years ago. Did fish evolve into amphibians? Amphibians evolved during the middle of the Devonian period (416 to 359 million years ago) from the lobe-finned

Do Siren Salamanders Have Lungs?

Do Siren Salamanders Have Lungs? Do Siren salamanders have lungs? Newts are salamanders that spend most of each year living on land. Sirens. Sirens are salamanders that have lungs as well as gills and never develop beyond the larval stage. Do salamanders have lungs? “If you look at a salamander when they’re still, they’re not