If the zygote splits into two separate cells, ________.
A. both cells die
B. identical twins result
C. dizygotic twinning occurs
D. fraternal twins result
E. paternal twins result
Answer: B
You might also like to view...
Which of the following is NOT true regarding the lymphatic system?
a. Lymph is returned to the cardiovascular system where it once more becomes a part of blood plasma. b. Lymphatic capillaries absorb lipid droplets from interstitial fluid. c. Lymph flows from lymph capillaries to larger lymphatic vessels to the heart and lungs. d. The lymphatic system removes microorganisms from body fluid. e. Lymphatic capillaries absorb excess fluid from the tissues.
Which of the following would decrease the velocity of blood flow?
A. Increased afterload B. Decreased vasomotion C. Increased viscosity D. Increased blood pressure E. Increased vessel radius
Increased aldosterone causes increased
A. urine volume. B. sodium secretion. C. potassium secretion. D. reabsorption of hydrogen ions. E. filtrate formation.
Which of the following structures does not contain CSF?
A) Subarachnoid space B) Lateral ventricle C) Dural sinus D) Central canal