which of the following a correct development sequence a. Neural plate, proliferation, neural groove, neural tube b. Neural plate, neural groove , neural tube, proliferation c. Neural groove, neural tube, proliferation, neural plate d. Proliferation, neural plate, neural groove , neural tube

What critical developmental process/es are altered following retinoic acid-exposure, which may cause protrusion of the spinal cord through the vertebral arches? Select one or more: O A. Primary neurulation, where the neural plate creases inward until the edges come in contact and fuse. O B. Secondary neurulation, where the tube forms by hollowing out of the interior of a solid precursor. O C. Regulation of neural crest migration from the neural tube to generate segmental ganglia. O D. Abnormal somite formation affecting the development of muscles of the back.

-4. In the diagram below, the stages of development in a frog embryo are NOT arranged in the correct order. In what order should they be placed to show the normal sequence of development in the embryo? What process is occurring in this diagram? B. D Dorsal lip of blastopore Dorsal lip of blastopore Dorsal lip of blastopore Dorsal lip blastopon

Cells at the 4 cell stage of an embryo are _______ compared to cells at the 32 cell stage of the same embryo? Group of answer choices A. larger B. smaller and more differentiated C. about the same size D. smaller E. smaller and less differentiated