Exam 47: Animal Development

Cells transplanted from the neural tube of a frog embryo to the ventral part of another embryo develop into nervous system tissues. This result indicates that the transplanted cells were ________.

In which of the following organisms does holoblastic cleavage typically occur? I.sea urchins II.humans III.birds IV.fish

At the time of implantation, the human embryo is called a ________.

The embryonic precursor to the human spinal cord is the ________.

The vegetal pole of a frog zygote differs from the animal pole in that ________.

Which of the following is common to the development of birds and mammals?

What structural adaptation in chickens allows them to lay their eggs in arid environments rather than in water?

Which of the following correctly matches the extraembryonic membrane with its function?

Why was the evolution of the extraembryonic membranes crucial for colonization of land by the vertebrates? Extraembryonic membranes ________.

Among these choices, the largest cell involved in frog reproduction is ________.