#Question id: 5097
#Unit 5. Developmental Biology
The embryonic precursor to the human spinal cord is the ________.
#Question id: 5098
#Unit 5. Developmental Biology
The term applied to a morphogenetic process whereby cells extend themselves, making the mass of the cells narrower and wider, is ________.
#Question id: 5099
#Unit 5. Developmental Biology
Which of the following is common to the development of birds and mammals?
#Question id: 5100
#Unit 5. Developmental Biology
During frog development, the blastocoel ________.
#Question id: 5101
#Unit 5. Developmental Biology
Which of the following correctly matches the extraembryonic membrane with its function?
#Question id: 5102
#Unit 5. Developmental Biology
Why was the evolution of the extraembryonic membranes crucial for colonization of land by the vertebrates? Extraembryonic membranes ________.