The movement of chromosomes during mitosis is due to ________.
A. chromatids
B. telomeres
C. actin and myosin
D. spindle fibers
Answer: D
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The endocrine glands located on top of the kidneys are the ________ glands.
A. parathyroid B. thyroid C. vestibular D. adrenal E. renal
The normal partial pressure differences between inspired air and alveolar gas for O2, CO2, H2O, and N2 can be explained because of ________.
A. net movements of CO2 toward the alveoli with net movements of O2 and H2O into the capillaries B. net movement of CO2 and N2 toward the alveoli and H2O movements toward the alveoli as respiratory water C. net movements of CO2 toward the alveoli, O2 toward the alveoli, and H2O is added along the respiratory tract D. net movements of CO2, O2, and H2O into the alveoli from blood capillaries
How do the lymphatic and immune systems contribute to osteoporosis?
A. Excessive smoking lowers estrogen levels, which increases bone loss. B. Immune cells resist infections and release chemicals that promote tissue repair. C. Calcium ions released from the bones are excreted. D. Lack of exposure to sunlight reduces vitamin D production and decreases calcium absorption. E. Decreased estrogen levels following menopause contribute to the disease.
The amygdala, hippocampus and hypothalamus are involved in such feelings as love, anger, fear, pleasure, and pain.
Answer the following statement true (T) or false (F)