According to the cladogram, which characteristic was used to separate bony fish from amphibians?

jaws

cartilage

bony skeleton

lungs

Lungs

Amphibians are known to be animals which can survive both on land and in water. They can walk on land and have limbs to swim. However, they do not have gills to breath but can only breath directly from air through lungs while bony fish have fins to swim in water and can breathe through there gills and filter oxygen from water.

the answer is a) a shiprock was formed by igneous process

a- all cells come from pre-existing cells