The respiratory and digestive systems in the embryo develop from the
A) ectoderm of the embryonic disk.
B) mesoderm of the embryonic disk.
C) endoderm of the embryonic disk.
D) neural tube.
C
You might also like to view...
Freud held that a child identifies with his parents during the _______ stage.
a. oral b. anal c. phallic d. genital
On a creativity test, the novelty of solutions refers to one's
a. fluency. b. originality. c. flexibility. d. convergent thought.
Language studies with bonobo chimpanzees suggest that they ____.
A. cannot learn language as well as common chimpanzees B. use symbols in the wild to communicate with each other C. comprehend spoken language comparable to that of a two-year-old child D. can write as well as a two-year-old child
The zygote implants into the
a. uterine wall. c. vaginal wall. b. fallopian tube. d. ovarian wall.