Which position of the three primary germ layers in the early embryo is correct?
A. Ectoderm on the inside, endoderm on the outside, and mesoderm in the middle
B. Endoderm on the inside, ectoderm on the outside, and mesoderm in the middle
C. Mesoderm on the inside, endoderm on the outside, and ectoderm in the middle
D. Mesoderm on the inside, ectoderm on the outside, and endoderm in the middle
E. Ectoderm on the inside, mesoderm on the outside, and endoderm in the middle
Answer: B
You might also like to view...
The endothoracic fascia:
A) is continuous with the clavipectoral fascia. B) provides a surgical cleavage plane between the thoracic wall and the costal parietal pleura. C) attaches to the suspensory ligaments of the breast. D) contains the intercostal muscles. E) may become fibrous and thus interfere with normal respiratory movements.
When prolonged immobility takes place and caloric intake exceeds energy expenditures, the result if often:
A) protein deficit B) obesity C) negative nitrogen balance D) ileus
Individuals with type-B blood display type-A antigens on their red blood cells
Indicate whether the statement is true or false
At the end of meiosis I there are __________, whereas at the end of meiosis II there is/are __________
A. two diploid cells; one diploid cell B. two diploid cells; one haploid cell C. two diploid cells; four haploid cells D. two haploid cells; four haploid cells E. two haploid cells; one diploid cell