This figure shows the pituitary gland. Which number indicates the posterior pituitary?
A. 1
B. 2
C. 4
D. 5
E. 6
Answer: E
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A secondary oocyte arrests in
A. prophase I. B. anaphase II. C. prophase II. D. metaphase II. E. metaphase I.
Which of the following cell organelles is/are not surrounded by membranes? 1. Lysosomes; 2. Peroxisomes; 3. Mitochondria; 4. Flagellae; 5. Ribsomes
A. 1 and 2 B. 1 and 3 C. 4 and 5 D. 1 and 5 E. 2 and 3
It has been suggested that the lymphatic system evolved when animals became larger and the hydrostatic pressure in their circulatory systems rose. Explain how this suggestion is consistent with the function of the lymphatics-how does high blood pressure make lymphatic function essential? Also, what other advantages were gained by animals that developed lymphatic systems?
What will be an ideal response?
____________ is the condition in which the foreskin of the penis fits too tightly over the head and cannot be retracted.
A) hypospadias B) phimosis C) prepuce D) epididymitis