Which region of the brain controls breathing?
A. Hypothalamus
B. Cerebrum
C. Medulla oblongata
D. Occipital lobe
Answer: C
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Answer the following statement(s) true (T) or false (F)
1. Most blood cells are produced in the red marrow of bones. 2. A vertebra is considered an irregular bone. 3. A radiograph (X-ray) of a child's hand will show epiphyseal lines. 4. The hemopoietic tissue in a bone is otherwise known as myeloid tissue. 5. Osteogenic cells are bone stem cells that differentiate into osteoblasts and osteoclasts.
The microtubule disruptor, vinblastine
A) Is derived from the autumn crocus. B) Kills dividing tumor cells by disrupting the mitotic spindle. C) Kills cells that line blood vessels, thus cutting off blood flow to tumors. D) B and C
Is genetic diversity due entirely to inherited genes on the sex chromosomes?
A) Yes, because the female has two X chromosomes and the male has only one X chromosome. B) Yes, because genetic diversity is due to the Y influence on the autosomes. C) Yes, because the male has a Y chromosome. D) No, because genetic diversity has nothing to do with the sex chromosomes but is due to crossing-over of chromosomes, independent assortment of chromosomes, and segregation of chromosomes.
List the veins that a drop of blood will pass through as it leaves the foot and returns to the heart: 1. Saphenous vein 2. Popliteal vein 3. External iliac vein 4. Femoral vein
A) 3, 2, 4, 1 B) 2, 3, 4, 1 C) 2, 4, 3, 1 D) 3, 2, 1, 4 E) 2, 1, 4, 3