Following gastrulation, the next major development in the embryo is neurulation, which occurs during weeks three and four after fertilization. This is a process in which the embryo develops structures that will eventually become the nervous system
Arctic <u>cod</u> , fish that produces antifreeze proteins in its blood.
Maybe it’s not a mineral because it’s just hardened tree resin whereas minerals can be mined and found deep in the earth…?
Instructions for an inherited traits are called genes.
