Why do many of the transitional fossils fish and tetrapods have flat heads.

In 2004, Shubin and colleagues found the fossil of a new species that shed light on a key transition in the evolution of tetrapods: the fin-to-limb transition. ... So finding a flat-headed fish was a good indicator that this fossil was part of the gradual evolutionary sequence from fish to tetrapods.

the answer to this predicament is false, by friend, i had this on a quiz, and i got it wrong, so i learned it, cos i was gonna have it on a test, and i got it right

chromosomes carry the genetic information for organisms. also, chromatin is the thread like dna which is located in the nucleus of an organism.