The center of the neural tube becomes whereas the outside tissue becomes

During the embryonic development, the center of the neural tube becomes ventricles of the brain, and the outside tissues becomes the brain tissues.  

The ventricles of the brain are the communication network composed of cerebrospinal fluid filled cavities located in the parenchyma of the brain. It is composed of 2 lateral ventricles, third and fourth ventricle.

the correct answer is: d. the saltine and pretzel are made of flour, yeast, and baking soda, and salt. the pecan contains no flour but it does contain fats. the pecan is a nut that can be consumed as a healthy snack. first of all, pecans are a source of fat (monounsaturated fat), but they provide less fat than some other nuts. pecans are a rich source of dietary fiber, manganese magnesium, phosphorus, thiamin, vitamin e…